{"id":92846,"date":"2023-09-19T10:25:59","date_gmt":"2023-09-19T08:25:59","guid":{"rendered":"https:\/\/gahzly.com\/%d9%82%d8%a7%d9%86%d9%88%d9%86-%d8%ad%d8%b3%d8%a7%d8%a8-%d9%85%d9%82%d8%b7%d8%b9-%d8%a7%d9%84%d8%b3%d9%84%d9%83-%d8%a7%d9%84%d9%83%d9%87%d8%b1%d8%a8%d8%a7%d8%a6%d9%8a-%d9%85%d8%b9%d8%a7\/"},"modified":"2023-09-19T11:09:30","modified_gmt":"2023-09-19T09:09:30","slug":"the-law-for-calculating-the-cross-section-of-an-electric-wire-equations-and-examples","status":"publish","type":"post","link":"https:\/\/gahzly.com\/en\/\u0645\u0642\u0627\u0644\/the-law-for-calculating-the-cross-section-of-an-electric-wire-equations-and-examples\/","title":{"rendered":"The law for calculating the cross-section of an electric wire &#8211; equations and examples"},"content":{"rendered":"<header class=\"entry-header post-title title-align-inherit title-tablet-align-inherit title-mobile-align-inherit\">\n<header class=\"entry-header post-title title-align-inherit title-tablet-align-inherit title-mobile-align-inherit\">\n<h1 class=\"entry-title\" style=\"text-align: center\"><span style=\"vertical-align: inherit\"><span class=\"\" style=\"vertical-align: inherit\">The law for calculating the cross-section of an electric wire &#8211; equations and examples<\/span><\/span><\/h1>\n<\/header>\n<div class=\"post-thumbnail article-post-thumbnail kadence-thumbnail-position-below kadence-thumbnail-ratio-2-3\">\n<div class=\"post-thumbnail-inner\">\n<figure style=\"width: 768px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"post-top-featured wp-post-image ezlazyloaded\" title=\"The law for calculating the cross-section of an electric wire - equations and examples 1\" src=\"https:\/\/kahrabae.com\/wp-content\/uploads\/2023\/07\/%D9%82%D8%A7%D9%86%D9%88%D9%86-%D8%AD%D8%B3%D8%A7%D8%A8-%D9%85%D9%82%D8%B7%D8%B9-%D8%A7%D9%84%D8%B3%D9%84%D9%83-%D8%A7%D9%84%D9%83%D9%87%D8%B1%D8%A8%D8%A7%D8%A6%D9%8A-%D8%A7%D9%84%D9%85%D9%86%D8%A7%D8%B3%D8%A8.png?ezimgfmt=rs:775x517\/rscb2\/ngcb2\/notWebP\" alt=\"The law for calculating the cross-section of an electric wire - equations and examples\" width=\"768\" height=\"474\" data-ezsrcset=\"https:\/\/kahrabae.com\/wp-content\/uploads\/2023\/07\/\u0642\u0627\u0646\u0648\u0646-\u062d\u0633\u0627\u0628-\u0645\u0642\u0637\u0639-\u0627\u0644\u0633\u0644\u0643-\u0627\u0644\u0643\u0647\u0631\u0628\u0627\u0626\u064a-\u0627\u0644\u0645\u0646\u0627\u0633\u0628.png?ezimgfmt=ngcb2\/notWebP 768w,https:\/\/kahrabae.com\/wp-content\/uploads\/2023\/07\/\u0642\u0627\u0646\u0648\u0646-\u062d\u0633\u0627\u0628-\u0645\u0642\u0637\u0639-\u0627\u0644\u0633\u0644\u0643-\u0627\u0644\u0643\u0647\u0631\u0628\u0627\u0626\u064a-\u0627\u0644\u0645\u0646\u0627\u0633\u0628-300x185.png?ezimgfmt=ngcb2\/notWebP 300w\" data-ezsrc=\"https:\/\/kahrabae.com\/wp-content\/uploads\/2023\/07\/\u0642\u0627\u0646\u0648\u0646-\u062d\u0633\u0627\u0628-\u0645\u0642\u0637\u0639-\u0627\u0644\u0633\u0644\u0643-\u0627\u0644\u0643\u0647\u0631\u0628\u0627\u0626\u064a-\u0627\u0644\u0645\u0646\u0627\u0633\u0628.png?ezimgfmt=rs:775x517\/rscb2\/ngcb2\/notWebP\" \/><figcaption class=\"wp-caption-text\">The law for calculating the cross-section of an electric wire &#8211; equations and examples<\/figcaption><\/figure>\n<\/div>\n<\/div>\n<div class=\"entry-content single-content\">\n<div id=\"rank-math-toc\" class=\"wp-block-rank-math-toc-block\">\n<h2><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">Contents<\/span><\/span><\/h2>\n<nav>\n<ul>\n<li><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">What is wire gauge and why is it important?<\/span><\/span><span id=\"ezoic-pub-ad-placeholder-103\" data-inserter-version=\"2\"><\/span><\/li>\n<li><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">Factors for calculating the electrical wire cross-section<\/span><\/span>\n<ul>\n<li><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">Electrical load current<\/span><\/span><\/li>\n<li><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">Length of electrical cables<\/span><\/span><span id=\"ezoic-pub-ad-placeholder-111\" data-inserter-version=\"2\"><\/span><\/li>\n<li><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">Low voltage<\/span><\/span><\/li>\n<\/ul>\n<\/li>\n<li><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">The law for calculating the section of an electric wire<\/span><\/span><span id=\"ezoic-pub-ad-placeholder-112\" data-inserter-version=\"2\"><\/span><\/li>\n<li><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">Application of the law for calculating the cross-section of an electric wire<\/span><\/span><\/li>\n<li><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">Table for determining the cross-sectional area of \u200b\u200bthe wire<\/span><\/span><\/li>\n<li><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">The law for calculating the cable cross-section for a three-phase load<\/span><\/span><span id=\"ezoic-pub-ad-placeholder-113\" data-inserter-version=\"2\"><\/span><\/li>\n<li><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">What is the resistance of copper and aluminum?<\/span><\/span><\/li>\n<\/ul>\n<\/nav>\n<\/div>\n<div class=\"wp-block-spacer\" aria-hidden=\"true\"><\/div>\n<p><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">When installing an electrical system, choosing the correct size of electrical wire is essential to ensure efficient and safe power distribution. <\/span><span style=\"vertical-align: inherit\">Understanding the electrical wire cross section calculation law is essential to determine the appropriate wire size based on the electrical load, cable length, and safety standards. <\/span><span style=\"vertical-align: inherit\">This article will guide you through the basic concepts and calculation formulas used to determine the size of electrical wire required for a specific application or project, allowing you to achieve optimal electrical installations.<\/span><\/span><\/p>\n<h2 id=\"\u0645\u0627-\u0647\u0648-\u0645\u0642\u064a\u0627\u0633-\u0627\u0644\u0633\u0644\u0643-\u0648\u0644\u0645\u0627\u0630\u0627-\u0647\u0648-\u0645\u0647\u0645\u061f\" class=\"wp-block-heading\"><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">What is wire gauge and why is it important?<\/span><\/span><\/h2>\n<p><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">The cross section of electrical wire refers to the size of the cross section of the conductor used to transmit electricity. <\/span><span style=\"vertical-align: inherit\">It is measured in units of area, usually in square millimeters <\/span><\/span><strong><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">\u00a0(mm\u00b2)<\/span><\/span><\/strong><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\"> \u00a0or\u00a0 <\/span><\/span><strong><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">AWG<\/span><\/span><\/strong><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\"> \u00a0(American Cable Gauge) in some countries. <\/span><span style=\"vertical-align: inherit\">The cross section of an electrical wire is important because it determines the wire&#8217;s ability to carry electrical current safely and efficiently.<\/span><\/span><\/p>\n<h3 id=\"\u0643\u064a\u0641-\u064a\u0639\u0645\u0644\u061f\" class=\"wp-block-heading\"><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">How it works?<\/span><\/span><\/h3>\n<p><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">When an electric current flows through a wire, a certain amount of heat is generated due to the resistance of the conductor material. <\/span><span style=\"vertical-align: inherit\">If the cross-section of the wire is insufficient for the electrical load, the resulting heat may build up and cause the wire to overheat, increasing the risk of fire and system failure. <\/span><span style=\"vertical-align: inherit\">Therefore, it is necessary to calculate the appropriate electrical wire cross-section to avoid overheating problems and ensure safe and efficient operation of electrical installations.<\/span><\/span><\/p>\n<h3 id=\"\u0648\u062d\u062f\u0627\u062a-\u0642\u064a\u0627\u0633-\u0645\u0642\u0637\u0639-\u0633\u0644\u0643-\u0643\u0647\u0631\u0628\u0627\u0626\u064a\" class=\"wp-block-heading\"><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">Units of measurement for electrical wire cross-section<\/span><\/span><\/h3>\n<p><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">The units of measurement commonly used to express the cross-section of an electrical wire are as follows:<\/span><\/span><\/p>\n<p><span id=\"ezoic-pub-ad-placeholder-115\" data-inserter-version=\"2\"><\/span><strong><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">\u2013 Square millimeter (mm\u00b2)<\/span><\/span><\/strong><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\"> : The most common unit of measurement used in many countries. <\/span><span style=\"vertical-align: inherit\">Indicates the conduction section of the wire in square millimeters. <\/span><span style=\"vertical-align: inherit\">For example, <\/span><\/span><strong><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">\u00a0a 2.5 mm\u00b2 wire<\/span><\/span><\/strong><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\"> means \u00a0that it has a cross section of\u00a0 <\/span><\/span><strong><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">2.5 square millimeters<\/span><\/span><\/strong><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\"> .<\/span><\/span><\/p>\n<p><strong><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">\u2013 AWG (American Wire Gauge)<\/span><\/span><\/strong><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\"> : This is a unit of measurement used primarily in the United States and Canada. <\/span><span style=\"vertical-align: inherit\">AWG uses a reversed numbering system, which means that the smaller the AWG number, the larger the cross-sectional area of \u200b\u200bthe wire. <\/span><span style=\"vertical-align: inherit\">For example, <\/span><\/span><strong><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">\u00a010 AWG wire<\/span><\/span><\/strong><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\"> has \u00a0a larger cross section than\u00a0 <\/span><\/span><strong><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">14 AWG wire<\/span><\/span><\/strong><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\"> .<\/span><\/span><\/p>\n<h3 id=\"\u0645\u0644\u0627\u062d\u0638\u0629\" class=\"wp-block-heading\"><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">note:<\/span><\/span><\/h3>\n<p><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">It is important to note that direct conversion between units of measurement may vary depending on the conductor material used (copper, aluminum, etc.) and the specific regulations of each country. <\/span><span style=\"vertical-align: inherit\">It is therefore advisable to consult local standards and regulations for accurate use of electrical wire cross-section units.<\/span><\/span><\/p>\n<h2 id=\"\u0639\u0648\u0627\u0645\u0644-\u062d\u0633\u0627\u0628-\u0645\u0642\u0637\u0639-\u0627\u0644\u0633\u0644\u0643-\u0627\u0644\u0643\u0647\u0631\u0628\u0627\u0626\u064a\" class=\"wp-block-heading\"><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">Factors for calculating the electrical wire cross-section<\/span><\/span><\/h2>\n<p><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">Factors that must be taken into account in calculating the electrical wire cross-section:<\/span><\/span><\/p>\n<h3 id=\"\u062a\u064a\u0627\u0631-\u0627\u0644\u062d\u0645\u0644-\u0627\u0644\u0643\u0647\u0631\u0628\u0627\u0626\u064a\" class=\"wp-block-heading\"><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">Electrical load current<\/span><\/span><\/h3>\n<p><strong><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">How do you determine the total electrical load of your system? <\/span><\/span><br \/>\n<span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">\u2013\u00a0<\/span><\/span><\/strong><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\"> Determining the total electrical load of your system is key to calculating the proper wire gauge. <\/span><span style=\"vertical-align: inherit\">Electrical load is the amount of electricity consumed by your electrical appliances and equipment. <\/span><span style=\"vertical-align: inherit\">It is measured in amperes\u00a0 <\/span><\/span><strong><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">(A)<\/span><\/span><\/strong><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\"> \u00a0and can be obtained by adding the current ratings of all devices connected to the circuit.<\/span><\/span><\/p>\n<p><strong><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">To\u00a0<\/span><\/span><\/strong><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\"> determine the total electrical load, you can refer to the appliance specifications to find out their current rating. <\/span><span style=\"vertical-align: inherit\">Then add these values \u200b\u200bto get the total circuit load. <\/span><span style=\"vertical-align: inherit\">It is important to consider both the current load and the potential for future extensions or hardware additions in order to choose a wiring section that can support the current and future needs of the system.<\/span><\/span><\/p>\n<p>&nbsp;<\/p>\n<h3 id=\"\u0637\u0648\u0644-\u0627\u0644\u0643\u0627\u0628\u0644\u0627\u062a-\u0627\u0644\u0643\u0647\u0631\u0628\u0627\u0626\u064a\u0629\" class=\"wp-block-heading\"><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">Length of electrical cables<\/span><\/span><\/h3>\n<p><strong><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">How does cable length affect wire gauge? <\/span><\/span><br \/>\n<span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">The length of the cable is\u00a0<\/span><\/span><\/strong><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\"> an important factor that must be taken into account when calculating the electrical wire cross-section. <\/span><span style=\"vertical-align: inherit\">The longer the cable, the more resistance there is in the connector, which can lead to voltage loss. <\/span><span style=\"vertical-align: inherit\">Voltage loss can affect the performance of electrical devices and cause an unacceptable voltage drop at the end of the circuit.<\/span><\/span><\/p>\n<p><strong><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">\u2013\u00a0<\/span><\/span><\/strong><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\"> To reduce voltage loss, it is recommended to choose a larger wire gauge for longer cables. <\/span><span style=\"vertical-align: inherit\">You can use voltage drop calculation tables or calculation software to determine the appropriate section depending on the cable length and electrical load.<\/span><\/span><\/p>\n<h3 id=\"\u0627\u0646\u062e\u0641\u0627\u0636-\u0627\u0644\u062c\u0647\u062f\" class=\"wp-block-heading\"><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">Low voltage<\/span><\/span><\/h3>\n<p><strong><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">What is voltage drop and how to reduce it? <\/span><\/span><br \/>\n<span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">\u2013\u00a0<\/span><\/span><\/strong><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\"> Voltage drop occurs when electricity encounters resistance in a conductor, causing a voltage drop between the point of supply and the point of consumption. <\/span><span style=\"vertical-align: inherit\">Excessive voltage drops can affect the proper operation of electrical appliances and equipment, especially those that require constant voltage.<\/span><\/span><\/p>\n<p><span id=\"ezoic-pub-ad-placeholder-118\" data-inserter-version=\"2\"><\/span><strong><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">\u2013\u00a0<\/span><\/span><\/strong><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\"> To minimize voltage drop, it is important to choose a suitable wire gauge that minimizes resistance. <\/span><span style=\"vertical-align: inherit\">Specific equations can be used to calculate voltage drop as a function of cable length, conductor material resistance, and electrical load. <\/span><span style=\"vertical-align: inherit\">In general, it is recommended to keep the voltage drop below a certain value, usually around <\/span><\/span><strong><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">\u00a03%<\/span><\/span><\/strong><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\"> \u00a0for domestic installations and\u00a0 <\/span><\/span><strong><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">5%<\/span><\/span><\/strong><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\"> \u00a0for industrial installations.<\/span><\/span><\/p>\n<h2 id=\"\u0642\u0627\u0646\u0648\u0646-\u062d\u0633\u0627\u0628-\u0645\u0642\u0637\u0639-\u0627\u0644\u0633\u0644\u0643-\u0627\u0644\u0643\u0647\u0631\u0628\u0627\u0626\u064a\" class=\"wp-block-heading\"><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">The law for calculating the section of an electric wire<\/span><\/span><\/h2>\n<p><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">It is noteworthy that there are different methods used to calculate the cross-section of an electrical wire as a function of the electrical load. <\/span><span style=\"vertical-align: inherit\">One of the most common methods is to refer to specific schedules of electrical cables and wires, use them extensively and become familiar with them.<\/span><\/span><\/p>\n<h3 id=\"\u0627\u0644\u0642\u0627\u0646\u0648\u0646-\u0627\u0644\u0623\u0633\u0627\u0633\u064a-p-u-x-i\" class=\"wp-block-heading\"><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">Basic law P = U x I<\/span><\/span><\/h3>\n<p><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">The law <\/span><\/span><strong><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">\u00a0P = U x I<\/span><\/span><\/strong><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\"> \u00a0is a basic equation used to calculate electrical power\u00a0 <\/span><\/span><strong><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">(P)<\/span><\/span><\/strong><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\"> \u00a0as a function of voltage\u00a0 <\/span><\/span><strong><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">(U)<\/span><\/span><\/strong><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\"> \u00a0and current\u00a0 <\/span><\/span><strong><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">(I)<\/span><\/span><\/strong><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\"> . <\/span><span style=\"vertical-align: inherit\">Although this formula does not directly give the wire cross-section, it can be used to determine the total electrical load of a circuit, which is an essential factor in selecting an appropriate electrical wire cross-section.<\/span><\/span><\/p>\n<p><span id=\"ezoic-pub-ad-placeholder-119\" data-inserter-version=\"2\"><\/span><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">To use this equation in the context of calculating the cross-section of a wire, you need to know the total power (P) in watts <\/span><\/span><strong><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">\u00a0(W)<\/span><\/span><\/strong><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\"> \u00a0of the electrical appliances and equipment in the circuit, as well as the voltage (U) in volts\u00a0 <\/span><\/span><strong><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">(V)<\/span><\/span><\/strong><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\"> . <\/span><span style=\"vertical-align: inherit\">Then you can calculate the current (I) using\u00a0 <\/span><\/span><strong><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">the law I = P\/U<\/span><\/span><\/strong><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\"> .<\/span><\/span><\/p>\n<p><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">Once you determine the current, you can refer to specific tables or standards to choose the size of wire that can safely carry that current. <\/span><span style=\"vertical-align: inherit\">These tables or standards usually provide a relationship between the cross section of the wire, the current rating, and the properties of the conductor material (for example,\u00a0 <\/span><\/span><strong><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">copper<\/span><\/span><\/strong><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\"> \u00a0or\u00a0 <\/span><\/span><strong><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">aluminum<\/span><\/span><\/strong><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\"> ).<\/span><\/span><\/p>\n<h3 id=\"\u0645\u0639\u0627\u0645\u0644\u0627\u062a-\u062a\u0635\u062d\u064a\u062d-\u0627\u0633\u0644\u0627\u0643-\u0627\u0644\u0643\u0647\u0631\u0628\u0627\u0621\" class=\"wp-block-heading\"><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">Electricity wire correction transactions<\/span><\/span><\/h3>\n<p><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">Wire rectification coefficients are values \u200b\u200bthat affect a cable&#8217;s ability to carry a given current. <\/span><span style=\"vertical-align: inherit\">These parameters are determined by several variables, such as the type of cable insulation (e.g., <\/span><\/span><strong><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">\u00a0PVC<\/span><\/span><\/strong><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\"> \u00a0or\u00a0 <\/span><\/span><strong><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">XLPE<\/span><\/span><\/strong><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\"> ), ambient temperature, the way the cable is laid (e.g., in a pipe, embedded in soil, or in the air), as well as its location (on walls or buried underground) and the depth of its burial.<\/span><\/span><\/p>\n<p><span id=\"ezoic-pub-ad-placeholder-120\" data-inserter-version=\"2\"><\/span><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">These variables must be taken into account when designing an electrical wire section. <\/span><span style=\"vertical-align: inherit\">Using a correction factor of approximately <\/span><\/span><strong><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">\u00a00.8<\/span><\/span><\/strong><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\"> \u00a0, which may vary depending on the manufacturer&#8217;s specifications, you can adjust the cable cross-section according to these factors.<\/span><\/span><\/p>\n<p><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">It is recommended to consult the cable catalogs provided by the manufacturers for detailed information on the correction coefficients of each type of cable. <\/span><span style=\"vertical-align: inherit\">This information will allow you to choose the appropriate cable cross-section depending on the specific installation conditions.<\/span><\/span><\/p>\n<p><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">\u2013\u00a0 <\/span><\/span><strong><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">Correction coefficients table:<\/span><\/span><\/strong><\/p>\n<p>&nbsp;<\/p>\n<figure class=\"wp-block-table\">\n<table>\n<tbody>\n<tr>\n<td class=\"has-text-align-center\" data-align=\"center\">55<\/td>\n<td class=\"has-text-align-center\" data-align=\"center\">50<\/td>\n<td class=\"has-text-align-center\" data-align=\"center\">45<\/td>\n<td class=\"has-text-align-center\" data-align=\"center\">40<\/td>\n<td class=\"has-text-align-center\" data-align=\"center\">35<\/td>\n<td class=\"has-text-align-center\" data-align=\"center\">30<\/td>\n<td class=\"has-text-align-center\" data-align=\"center\">25<\/td>\n<td class=\"has-text-align-center\" data-align=\"center\">20<\/td>\n<td class=\"has-text-align-center\" data-align=\"center\">15<\/td>\n<td class=\"has-text-align-center\" data-align=\"center\"><strong><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">temperature<\/span><\/span><\/strong><\/td>\n<\/tr>\n<tr>\n<td class=\"has-text-align-center\" data-align=\"center\">0.55<\/td>\n<td class=\"has-text-align-center\" data-align=\"center\">0.66<\/td>\n<td class=\"has-text-align-center\" data-align=\"center\">0.75<\/td>\n<td class=\"has-text-align-center\" data-align=\"center\">0.84<\/td>\n<td class=\"has-text-align-center\" data-align=\"center\">0.92<\/td>\n<td class=\"has-text-align-center\" data-align=\"center\">1<\/td>\n<td class=\"has-text-align-center\" data-align=\"center\">1.07<\/td>\n<td class=\"has-text-align-center\" data-align=\"center\">1.15<\/td>\n<td class=\"has-text-align-center\" data-align=\"center\">1.21<\/td>\n<td class=\"has-text-align-center\" data-align=\"center\"><strong>PVC<\/strong><\/td>\n<\/tr>\n<tr>\n<td class=\"has-text-align-center\" data-align=\"center\">0.72<\/td>\n<td class=\"has-text-align-center\" data-align=\"center\">0.78<\/td>\n<td class=\"has-text-align-center\" data-align=\"center\"><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">0.84<\/span><\/span><\/td>\n<td class=\"has-text-align-center\" data-align=\"center\">0.9<\/td>\n<td class=\"has-text-align-center\" data-align=\"center\">0.95<\/td>\n<td class=\"has-text-align-center\" data-align=\"center\"><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">1<\/span><\/span><\/td>\n<td class=\"has-text-align-center\" data-align=\"center\">1.05<\/td>\n<td class=\"has-text-align-center\" data-align=\"center\">1.1<\/td>\n<td class=\"has-text-align-center\" data-align=\"center\"><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">1.15<\/span><\/span><\/td>\n<td class=\"has-text-align-center\" data-align=\"center\"><strong><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">XLPE<\/span><\/span><\/strong><\/td>\n<\/tr>\n<\/tbody>\n<\/table><figcaption class=\"wp-element-caption\"><strong><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">Air temperature correction factor<\/span><\/span><\/strong><\/figcaption><\/figure>\n<div class=\"wp-block-spacer\" aria-hidden=\"true\"><\/div>\n<figure class=\"wp-block-table\">\n<table>\n<tbody>\n<tr>\n<td class=\"has-text-align-center\" data-align=\"center\"><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">55<\/span><\/span><\/td>\n<td class=\"has-text-align-center\" data-align=\"center\"><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">50<\/span><\/span><\/td>\n<td class=\"has-text-align-center\" data-align=\"center\"><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">45<\/span><\/span><\/td>\n<td class=\"has-text-align-center\" data-align=\"center\"><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">40<\/span><\/span><\/td>\n<td class=\"has-text-align-center\" data-align=\"center\"><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">35<\/span><\/span><\/td>\n<td class=\"has-text-align-center\" data-align=\"center\"><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">30<\/span><\/span><\/td>\n<td class=\"has-text-align-center\" data-align=\"center\"><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">25<\/span><\/span><\/td>\n<td class=\"has-text-align-center\" data-align=\"center\"><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">20<\/span><\/span><\/td>\n<td class=\"has-text-align-center\" data-align=\"center\"><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">15<\/span><\/span><\/td>\n<td class=\"has-text-align-center\" data-align=\"center\"><strong><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">temperature<\/span><\/span><\/strong><\/td>\n<\/tr>\n<tr>\n<td class=\"has-text-align-center\" data-align=\"center\"><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">0.55<\/span><\/span><\/td>\n<td class=\"has-text-align-center\" data-align=\"center\">0.63<\/td>\n<td class=\"has-text-align-center\" data-align=\"center\">0.71<\/td>\n<td class=\"has-text-align-center\" data-align=\"center\">0.77<\/td>\n<td class=\"has-text-align-center\" data-align=\"center\"><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">0.84<\/span><\/span><\/td>\n<td class=\"has-text-align-center\" data-align=\"center\">0.89<\/td>\n<td class=\"has-text-align-center\" data-align=\"center\"><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">0.95<\/span><\/span><\/td>\n<td class=\"has-text-align-center\" data-align=\"center\"><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">1<\/span><\/span><\/td>\n<td class=\"has-text-align-center\" data-align=\"center\"><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">1.05<\/span><\/span><\/td>\n<td class=\"has-text-align-center\" data-align=\"center\"><strong><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">PVC<\/span><\/span><\/strong><\/td>\n<\/tr>\n<tr>\n<td class=\"has-text-align-center\" data-align=\"center\"><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">0.71<\/span><\/span><\/td>\n<td class=\"has-text-align-center\" data-align=\"center\">0.76<\/td>\n<td class=\"has-text-align-center\" data-align=\"center\">0.8<\/td>\n<td class=\"has-text-align-center\" data-align=\"center\">0.85<\/td>\n<td class=\"has-text-align-center\" data-align=\"center\"><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">0.89<\/span><\/span><\/td>\n<td class=\"has-text-align-center\" data-align=\"center\">0.93<\/td>\n<td class=\"has-text-align-center\" data-align=\"center\">0.96<\/td>\n<td class=\"has-text-align-center\" data-align=\"center\"><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">1<\/span><\/span><\/td>\n<td class=\"has-text-align-center\" data-align=\"center\">1.04<\/td>\n<td class=\"has-text-align-center\" data-align=\"center\"><strong><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">XLPE<\/span><\/span><\/strong><\/td>\n<\/tr>\n<\/tbody>\n<\/table><figcaption class=\"wp-element-caption\"><strong><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">Soil temperature correction factor<\/span><\/span><\/strong><\/figcaption><\/figure>\n<h2 id=\"\u062a\u0637\u0628\u064a\u0642-\u0642\u0627\u0646\u0648\u0646-\u062d\u0633\u0627\u0628-\u0645\u0642\u0637\u0639-\u0627\u0644\u0633\u0644\u0643-\u0627\u0644\u0643\u0647\u0631\u0628\u0627\u0626\u064a\" class=\"wp-block-heading\"><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">Application of the law for calculating the cross-section of an electric wire<\/span><\/span><\/h2>\n<h3 id=\"\u0645\u062b\u0627\u0644-1-\u0637\u0631\u064a\u0642\u0629-\u062d\u0633\u0627\u0628-\u062d\u062c\u0645-\u0627\u0644\u0623\u0633\u0644\u0627\u0643-\u0644\u062a\u0631\u0643\u064a\u0628-\u0633\u0643\u0646\u064a-\u0642\u064a\u0627\u0633\u064a\" class=\"wp-block-heading\"><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">Example 1: How to calculate wire size for a standard residential installation<\/span><\/span><\/h3>\n<p><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">Suppose you want to calculate the wire size for an electrical circuit in a standard residential home. <\/span><span style=\"vertical-align: inherit\">This is the relevant data:<\/span><\/span><\/p>\n<ul>\n<li><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">Total power of devices: 5000 watts<\/span><\/span><\/li>\n<li><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">Electrical voltage: 230 volts<\/span><\/span><span id=\"ezoic-pub-ad-placeholder-122\" data-inserter-version=\"2\"><\/span>\n<div id=\"google_ads_iframe_\/21732118914,22665728063\/kahrabae_com-mobile-leaderboard-2_0__container__\"><\/div>\n<\/li>\n<li><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">Average power factor: 0.9<\/span><\/span><\/li>\n<li><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">Normal room temperature: 25\u00b0C<\/span><\/span><\/li>\n<\/ul>\n<p><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">\u2013\u00a0 <\/span><\/span><strong><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">Step 1: Calculate the electrical load<\/span><\/span><\/strong><\/p>\n<p><span id=\"ezoic-pub-ad-placeholder-123\" data-inserter-version=\"2\"><\/span><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">Total power 5000 watts. <\/span><span style=\"vertical-align: inherit\">Divide this value by the voltage to get the current:<\/span><\/span><\/p>\n<p>I = P \/ U = 5000 W \/ 230 V = 21,74 A<\/p>\n<p><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">\u2013\u00a0 <\/span><\/span><strong><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">Step 2: Choose a wire clip<\/span><\/span><\/strong><\/p>\n<p><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">Consult appropriate standards and tables to select a cross section of wire that can carry a nominal current of approximately 21.74 A. <\/span><span style=\"vertical-align: inherit\">According to local standards, it is recommended to use a cross section of at least 4 mm\u00b2 for such a load.<\/span><\/span><\/p>\n<h2 id=\"\u062c\u062f\u0648\u0644-\u062a\u062d\u062f\u064a\u062f-\u0645\u0633\u0627\u062d\u0629-\u0645\u0642\u0637\u0639-\u0627\u0644\u0633\u0644\u0643\" class=\"wp-block-heading\"><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">Table for determining the cross-sectional area of \u200b\u200bthe wire<\/span><\/span><\/h2>\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-1281 ezlazyloaded aligncenter\" title=\"The law for calculating the cross-section of an electric wire - equations and examples 2\" src=\"https:\/\/kahrabae.com\/wp-content\/uploads\/2023\/07\/%D8%AC%D8%AF%D9%88%D9%84-%D8%AA%D8%AD%D8%AF%D9%8A%D8%AF-%D9%85%D8%B3%D8%A7%D8%AD%D8%A9-%D9%85%D9%82%D8%B7%D8%B9-%D8%A7%D9%84%D8%B3%D9%84%D9%83.png?ezimgfmt=rs:323x427\/rscb2\/ng:webp\/ngcb2\" alt=\"Table for determining the cross-sectional area of \u200b\u200ban electrical wire\" width=\"323\" height=\"427\" data-ezsrcset=\"https:\/\/kahrabae.com\/wp-content\/uploads\/2023\/07\/\u062c\u062f\u0648\u0644-\u062a\u062d\u062f\u064a\u062f-\u0645\u0633\u0627\u062d\u0629-\u0645\u0642\u0637\u0639-\u0627\u0644\u0633\u0644\u0643.png?ezimgfmt=ng:webp\/ngcb2 566w,https:\/\/kahrabae.com\/wp-content\/uploads\/2023\/07\/\u062c\u062f\u0648\u0644-\u062a\u062d\u062f\u064a\u062f-\u0645\u0633\u0627\u062d\u0629-\u0645\u0642\u0637\u0639-\u0627\u0644\u0633\u0644\u0643-227x300.png?ezimgfmt=ng:webp\/ngcb2 227w\" data-ezsrc=\"https:\/\/kahrabae.com\/wp-content\/uploads\/2023\/07\/\u062c\u062f\u0648\u0644-\u062a\u062d\u062f\u064a\u062f-\u0645\u0633\u0627\u062d\u0629-\u0645\u0642\u0637\u0639-\u0627\u0644\u0633\u0644\u0643.png?ezimgfmt=rs:323x427\/rscb2\/ng:webp\/ngcb2\" \/><\/figure>\n<\/div>\n<h3 id=\"\u0645\u062b\u0627\u0644-2-\u0643\u064a\u0641\u064a\u0629-\u062d\u0633\u0627\u0628-\u0645\u0642\u0637\u0639-\u0627\u0644\u0643\u0627\u0628\u0644\u0627\u062a-\u0644\u0645\u0646\u0634\u0623\u0629-\u0635\u0646\u0627\u0639\u064a\u0629-\u0630\u0627\u062a-\u0627\u0644\u0623\u062d\u0645\u0627\u0644-\u0627\u0644\u0639\u0627\u0644\u064a\u0629\" class=\"wp-block-heading\"><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">Example 2: How to calculate the cable cross-section for an industrial facility with high loads<\/span><\/span><\/h3>\n<p><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">Now imagine that you want to calculate the cross-section of wires and cables for an industrial facility with high loads. <\/span><span style=\"vertical-align: inherit\">This is the relevant data:<\/span><\/span><\/p>\n<ul>\n<li><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">Total power of devices: 15000 watts<\/span><\/span><span id=\"ezoic-pub-ad-placeholder-125\" data-inserter-version=\"2\"><\/span><\/li>\n<li><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">Electrical voltage: 400 volts<\/span><\/span><\/li>\n<li><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">Average power factor: 0.8<\/span><\/span><\/li>\n<li><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">High ambient temperature: 40\u00b0C<\/span><\/span><span id=\"ezoic-pub-ad-placeholder-126\" data-inserter-version=\"2\"><\/span>\n<div id=\"google_ads_iframe_\/21732118914,22665728063\/kahrabae_com-mobile-leaderboard-1_0__container__\"><\/div>\n<div id=\"google_ads_iframe_\/21732118914,22665728063\/kahrabae_com-mobile-leaderboard-1_1__container__\"><\/div>\n<\/li>\n<\/ul>\n<p><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">\u2013\u00a0 <\/span><\/span><strong><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">Step 1: Calculate the electrical load<\/span><\/span><\/strong><\/p>\n<p><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">Total power is 15000 watts. <\/span><span style=\"vertical-align: inherit\">Divide this value by the voltage to get the current:<\/span><\/span><\/p>\n<p>I = P \/ U = 15000 W \/ 400 V = 37,5 A<\/p>\n<p><span id=\"ezoic-pub-ad-placeholder-127\" data-inserter-version=\"2\"><\/span><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">\u2013\u00a0 <\/span><\/span><strong><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">Step 2: Choose the wire section<\/span><\/span><\/strong><\/p>\n<p><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">In this case, due to the high load, it is recommended to consult industry standards and tables to choose the appropriate wire section. <\/span><span style=\"vertical-align: inherit\">According to applicable standards, a minimum of 10 mm\u00b2 is recommended for such load and environmental conditions.<\/span><\/span><\/p>\n<h2 id=\"\u0642\u0627\u0646\u0648\u0646-\u062d\u0633\u0627\u0628-\u0645\u0642\u0637\u0639-\u0627\u0644\u0643\u0627\u0628\u0644-\u0644\u062d\u0645\u0644-\u062b\u0644\u0627\u062b\u0629-\u0641\u0627\u0632\" class=\"wp-block-heading\"><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">The law for calculating the cable cross-section for a three-phase load<\/span><\/span><\/h2>\n<p><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">To calculate the appropriate cable cross-section for a three-phase load, the law calculation for the cable cross-section of this type is used, and takes into account both the total power (in kilowatts) and the voltage (in volts) of the system.<\/span><\/span><\/p>\n<p><span id=\"ezoic-pub-ad-placeholder-128\" data-inserter-version=\"2\"><\/span><strong><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">The general law for calculating the three-phase cable cross-section is as follows:<\/span><\/span><\/strong><\/p>\n<p><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">Section (mm\u00b2) = (Power (kW) x 1000) \/ (Voltage (V) x \u221a3 x Correction factor)<\/span><\/span><\/p>\n<p><strong><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">In this law:<\/span><\/span><\/strong><\/p>\n<p>&nbsp;<\/p>\n<ul>\n<li><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">Power is expressed in kilowatts (kW).<\/span><\/span><\/li>\n<li><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">Voltage is expressed in volts (V).<\/span><\/span><\/li>\n<li><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">\u221a3 is the correction factor for three-phase systems and is equal to about 1.732.<\/span><\/span><span id=\"ezoic-pub-ad-placeholder-130\" data-inserter-version=\"2\"><\/span>\n<div id=\"google_ads_iframe_\/21732118914,22665728063\/kahrabae_com-leader-2_0__container__\"><\/div>\n<\/li>\n<\/ul>\n<p><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">\u2013 Here is an example to illustrate the cable cross-section calculation for a three-phase load:<\/span><\/span><\/p>\n<p><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">Suppose we have a three-phase load with the following specifications:<\/span><\/span><\/p>\n<ul>\n<li><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">Total power: 50 kW<\/span><\/span><span id=\"ez-clearholder-leader-4\"><\/span><\/li>\n<li><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">Voltage: 400 volts<\/span><\/span><\/li>\n<li><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">Correction factor: 0.9<\/span><\/span><\/li>\n<\/ul>\n<p><strong><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">Let&#8217;s apply the process:<\/span><\/span><br \/>\n<\/strong><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\"> Section (mm\u00b2) = (50 kW x 1000) \/ (400 V x \u221a3 x 0,9) <\/span><\/span><br \/>\n<span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">Section (mm2) = (50 kW x 1000) \/ (400 V x \u221a3 x 0.9)<\/span><\/span><\/p>\n<p>&nbsp;<\/p>\n<div id=\"google_ads_iframe_\/21732118914,22665728063\/kahrabae_com-narrow-sky-2_0__container__\"><\/div>\n<p><strong><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">Now we will calculate the cable cross-section:<\/span><\/span><br \/>\n<\/strong><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\"> Section (mm\u00b2) = 50,000 \/ (400 x 1.732 x 0.9) <\/span><\/span><br \/>\n<span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">Section (mm\u00b2) = 50,000 \/ (400 x 1.732 x 0.9)<\/span><\/span><\/p>\n<p class=\"has-text-align-center\"><strong><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">Section (mm2) \u2248 40.86 mm\u00b2<\/span><\/span><\/strong><\/p>\n<p><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">For this three-phase load, a cable cross-section of approximately <\/span><\/span><strong><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">\u00a040.86 mm\u00b2<\/span><\/span><\/strong><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\"> is recommended \u00a0using these specified values.<\/span><\/span><\/p>\n<h2 id=\"\u0645\u0627-\u0647\u064a-\u0645\u0642\u0627\u0648\u0645\u0629-\u0627\u0644\u0646\u062d\u0627\u0633-\u0627\u0644\u0623\u0644\u0645\u0646\u064a\u0648\u0645\u061f\" class=\"wp-block-heading\"><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">What is the resistance of copper and aluminum?<\/span><\/span><\/h2>\n<p><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">The electrical resistance of copper and aluminum differs due to their physical properties and conductivity. <\/span><span style=\"vertical-align: inherit\">Below are the approximate resistance values \u200b\u200bfor copper and aluminum:<\/span><\/span><\/p>\n<h3 id=\"\u0645\u0642\u0627\u0648\u0645\u0629-\u0627\u0644\u0646\u062d\u0627\u0633\" class=\"wp-block-heading\"><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">Resistivity of copper<\/span><\/span><\/h3>\n<p><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">The electrical resistivity of copper is generally estimated to be about\u00a0 <\/span><\/span><strong><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">0.0175 ohms<\/span><\/span><\/strong><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\"> \u00a0per square millimeter per meter\u00a0 <\/span><\/span><strong><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">(ohm\/mm\u00b2\/m)<\/span><\/span><\/strong><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\"> \u00a0at\u00a0 <\/span><\/span><strong><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">20\u00b0C<\/span><\/span><\/strong><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\"> . <\/span><span style=\"vertical-align: inherit\">This means that for every square millimeter of cross-section, the resistance of copper is about\u00a0 <\/span><\/span><strong><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">0.0175 ohms per meter<\/span><\/span><\/strong><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\"> .<\/span><\/span><\/p>\n<h3 id=\"\u0645\u0642\u0627\u0648\u0645\u0629-\u0627\u0644\u0623\u0644\u0645\u0646\u064a\u0648\u0645\" class=\"wp-block-heading\"><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">Aluminum resistance<\/span><\/span><\/h3>\n<p><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">The electrical resistance of aluminum is higher than that of copper. <\/span><span style=\"vertical-align: inherit\">It is generally estimated to be about\u00a0 <\/span><\/span><strong><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">0.0282 ohms<\/span><\/span><\/strong><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\"> \u00a0per square millimeter per meter\u00a0 <\/span><\/span><strong><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">(ohm\/mm\u00b2\/m)<\/span><\/span><\/strong><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\"> \u00a0at 20\u00b0C. <\/span><span style=\"vertical-align: inherit\">This means that for every square millimeter of cross section, the resistance of aluminum is about\u00a0 <\/span><\/span><strong><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">0.0282 ohms per meter<\/span><\/span><\/strong><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\"> .<\/span><\/span><\/p>\n<p><span id=\"ezoic-pub-ad-placeholder-134\" data-inserter-version=\"2\"><\/span><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">These values \u200b\u200bare approximate and may vary slightly depending on the purity of the material and other factors. <\/span><span style=\"vertical-align: inherit\">In addition, resistance can also vary depending on temperature. <\/span><span style=\"vertical-align: inherit\">These values \u200b\u200bare often used as a reference in cable area and voltage drop calculations, but it is recommended to consult location-specific standards and specifications for accurate and up-to-date values.<\/span><\/span><\/p>\n<p><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">The correct selection of electrical wire cross section and size is critical to ensuring a reliable and safe electrical installation. <\/span><span style=\"vertical-align: inherit\">By understanding\u00a0 <\/span><\/span><strong><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">the rule for calculating the section of electrical wire<\/span><\/span><\/strong><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\"> , you can choose the appropriate wire size for your electrical system. <\/span><span style=\"vertical-align: inherit\">Always be sure to follow safety standards and consult a professional if in doubt. <\/span><span style=\"vertical-align: inherit\">Properly sized electrical installations will ensure efficient distribution of electricity in the application to be powered, minimizing power loss and avoiding electrical hazards and damage to electrical equipment.<\/span><\/span><\/p>\n<div dir=\"auto\">\n<h4 style=\"text-align: right\"><strong><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">If you have any inquiry, please contact us freely and we will be happy to serve you.<\/span><\/span><\/strong><\/h4>\n<p style=\"text-align: right\"><strong><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-45299 aligncenter\" title=\"Joyce box outside, 2 holes in the frame, specific sizes. Joyce box outside, 2 holes in the frame, specific sizes\" src=\"https:\/\/i0.wp.com\/www.gahzly.com\/wp-content\/uploads\/2020\/11\/%D9%85%D9%82%D8%A7%D9%841_1-1.jpg?resize=1140%2C776&amp;ssl=1\" alt=\"Joyce box outside, 2 holes in frame, specific sizes\" width=\"1140\" height=\"776\" data-recalc-dims=\"1\" \/><\/strong><\/p>\n<\/div>\n<div dir=\"auto\"><\/div>\n<div dir=\"auto\">\n<p style=\"text-align: center\"><a href=\"https:\/\/gahzly.com\/en\/\"><strong><em><u><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">Jezli website for purchasing electrical appliances<\/span><\/span><\/u><\/em><\/strong><\/a><\/p>\n<p><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">When we say Jeezly website, we are talking about one of the most famous Arab websites that was able, in a very short period of time, to achieve a very large demand for purchases from it by people from various parts and sectors of the Arab world.<\/span><\/span><\/p>\n<p><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">On the Jeezly website, you will find a joint look and all the products that you may need in your home, starting with those for kitchens or bathrooms, but even those for gardens, you will find them on this wonderful site.<\/span><\/span><\/p>\n<p><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">So, if you were lost before and did not know where to go to buy your products on the Internet, now you have the perfect solution, and all you have to do is go to the Jezli website and start choosing the products you want.<\/span><\/span><\/p>\n<p><strong><em><u><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-27987\" title=\"Types of circuit breakers 18 - Work and applications l\" src=\"https:\/\/www.gahzly.com\/wp-content\/uploads\/2020\/05\/%D9%88%D8%B5%D9%84%D8%A9-%D8%B4%D8%B1%D9%8A%D8%B7-%D9%84%D9%8A%D8%AF.jpg\" alt=\"LED strip connection\" width=\"512\" height=\"512\" \/><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">What are the features of Jeezly <\/span><\/span><a href=\"https:\/\/gahzly.com\/en\/\u0645\u0646\u062a\u062c\/power-strip-with-3-outlets-16-amp-black\/\">\u00a0<\/a><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">?<\/span><\/span><\/u><\/em><\/strong><\/p>\n<p><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">Since we are talking about a site that is preferred by many people around the world, there is no doubt that it is a site full of various features and characteristics. Therefore, we have decided to devote our next paragraph to pointing out the most prominent features of the Jezli site.<\/span><\/span><\/p>\n<p><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">One of the most prominent features of the site is the proportionality of prices. On the Jeezly website, you do not have to worry about the imaginary prices of the products, as is the case with most sites that display their products on the Internet.<\/span><\/span><\/p>\n<p><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">The price of delivering products is very reasonable and not expensive, and the site accepts delivery to various countries, without forgetting that it accepts free shipping on some products.<\/span><\/span><\/p>\n<p><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">One of the features of the site is also the high quality of its products, as it is impossible to find a poor quality product. Rather, the Jezli website deals with the major companies, Philips, for example, and other famous brands, so you must remove from your mind the idea of \u200b\u200bthe poor quality of one of the products. <\/span><span style=\"vertical-align: inherit\">Another advantage of the site is that it does not specialize in one type of product, but rather you will find various types of products on it, for example, electrical appliances, hand tools, mechanical devices, paints, packages for establishing apartments, and many other types.<\/span><\/span><\/p>\n<p><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">Jeezly website also accepts what is known as the shopping cart, which makes it easy for you to filter the products you want to buy and put them in one package in order to be able to pay with the click of a single button.<\/span><\/span><\/p>\n<p><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">Accepts multiple payment methods.<\/span><\/span><\/p>\n<h4><a href=\"https:\/\/gahzly.com\/\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-50673 size-full\" title=\"Components of an electrical circuit Components of an electrical circuit\" src=\"https:\/\/gahzly.com\/wp-content\/uploads\/2021\/12\/editor-1s-188px-15.gif\" alt=\"Electrical circuit components\" width=\"188\" height=\"188\" \/><\/a><\/h4>\n<h4><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">We are pleased that you visit our social media pages, where we publish exclusive offers on our website.<\/span><\/span><\/h4>\n<p><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">Our Facebook page\u00a0 <\/span><\/span><a href=\"https:\/\/www.facebook.com\/Gahzlystore\/\" target=\"_blank\" rel=\"noopener\"><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">is here<\/span><\/span><\/a><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\"> .<\/span><\/span><\/p>\n<p><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">Our Twitter account\u00a0 <\/span><\/span><a href=\"https:\/\/twitter.com\/gahzly1\" target=\"_blank\" rel=\"noopener\"><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">is here<\/span><\/span><\/a><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\"> .<\/span><\/span><\/p>\n<\/div>\n<\/div>\n<\/header>\n","protected":false},"excerpt":{"rendered":"<p>The law for calculating the cross-section of an electric wire &#8211; equations and examples Contents What is wire gauge and why is it important? Factors for calculating the electrical wire cross-section Electrical load current Length of electrical cables Low voltage The law for calculating the section of an electric wire Application of the law for [&hellip;]<\/p>\n","protected":false},"author":1798,"featured_media":91975,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7375,12318,12319],"tags":[],"class_list":["post-92846","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-articles","category-sell-online","category-shop-online"],"featured_image_src":{"landsacpe":["https:\/\/gahzly.com\/wp-content\/uploads\/2023\/09\/download.jpg",259,194,false],"list":["https:\/\/gahzly.com\/wp-content\/uploads\/2023\/09\/download.jpg",259,194,false],"medium":["https:\/\/gahzly.com\/wp-content\/uploads\/2023\/09\/download.jpg",259,194,false],"full":["https:\/\/gahzly.com\/wp-content\/uploads\/2023\/09\/download.jpg",259,194,false]},"jetpack_featured_media_url":"https:\/\/gahzly.com\/wp-content\/uploads\/2023\/09\/download.jpg","_links":{"self":[{"href":"https:\/\/gahzly.com\/en\/wp-json\/wp\/v2\/posts\/92846","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/gahzly.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/gahzly.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/gahzly.com\/en\/wp-json\/wp\/v2\/users\/1798"}],"replies":[{"embeddable":true,"href":"https:\/\/gahzly.com\/en\/wp-json\/wp\/v2\/comments?post=92846"}],"version-history":[{"count":0,"href":"https:\/\/gahzly.com\/en\/wp-json\/wp\/v2\/posts\/92846\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/gahzly.com\/en\/wp-json\/wp\/v2\/media\/91975"}],"wp:attachment":[{"href":"https:\/\/gahzly.com\/en\/wp-json\/wp\/v2\/media?parent=92846"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/gahzly.com\/en\/wp-json\/wp\/v2\/categories?post=92846"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/gahzly.com\/en\/wp-json\/wp\/v2\/tags?post=92846"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}