{"id":118579,"date":"2026-08-15T22:57:34","date_gmt":"2026-08-15T19:57:34","guid":{"rendered":"https:\/\/gahzly.com\/?post_type=product&p=118579"},"modified":"2026-08-17T03:23:55","modified_gmt":"2026-08-17T00:23:55","slug":"%d8%b3%d9%84%d9%83-%d8%a7%d9%84%d8%ad%d8%ac%d8%a7%d8%b2-%d9%86%d8%ac%d8%a7%d8%b3-%d8%aa%d8%b1%d9%85%d9%88-4-%d8%b7%d8%b1%d9%81-50-25-%d9%85%d9%85%c2%b2","status":"publish","type":"product","link":"https:\/\/gahzly.com\/en\/product\/%d8%b3%d9%84%d9%83-%d8%a7%d9%84%d8%ad%d8%ac%d8%a7%d8%b2-%d9%86%d8%ac%d8%a7%d8%b3-%d8%aa%d8%b1%d9%85%d9%88-4-%d8%b7%d8%b1%d9%81-50-25-%d9%85%d9%85%c2%b2\/","title":{"rendered":"\u0633\u0644\u0643 \u0627\u0644\u062d\u062c\u0627\u0632 \u0646\u062c\u0627\u0633 \u062a\u0631\u0645\u0648 4 \u0637\u0631\u0641 50 +25 \u0645\u0645\u00b2"},"content":{"rendered":"

El-Hegaz thermo copper cable (3\u00d750 + 25) mm\u00b2: an industrial power artery<\/h1>\n

Introduction: Cables as the backbone of cities and factories<\/h2>\n

With the region\u2019s rapid urban and industrial development, traditional power solutions are no longer sufficient. Operating factories, shopping centers, and large residential complexes requires power cables engineered to demanding specifications. TheEl-Hegaz 4-core thermo copper cable, size (50 + 25) mm\u00b2<\/strong>stands out as a strategic solution combining high reliability with excellent capacity for heavy electrical loads.<\/p>\n

This cable is more than an electrical conductor; it is the result of advanced engineering aimed at reducing energy losses and ensuring continuous operation under demanding climatic and mechanical conditions. The following sections examine its copper conductors and insulation system in detail.<\/p>\n

\n

Chapter One: Internal engineering and cross-section (3\u00d750 + 25)<\/h2>\n

1. Reduced-neutral design philosophy<\/h3>\n

This cable uses a smart 4-conductor design:<\/p>\n

    \n
  • Three main conductors (3\u00d750 mm\u00b2):<\/strong>These conductors are assigned to the three phases. A 50 mm\u00b2 cross-section is selected to support continuous current above 150 A, depending on installation conditions, without excessive temperature rise.<\/li>\n
  • Auxiliary conductor (25 mm\u00b2):<\/strong>This conductor is used as the neutral. In balanced systems, the neutral may not require the same cross-sectional area as the phase conductors, so reducing it to 25 mm\u00b2 can lower cable weight and cost while maintaining proper safety when permitted by the system design.<\/li>\n<\/ul>\n

    2. Copper purity: the heart of El-Hegaz performance<\/h3>\n

    El-Hegaz uses electrolytic copper with a purity of99.9%<\/strong>.<\/p>\n

      \n
    • Resistivity:<\/strong>High copper purity provides low electrical resistance, reducing voltage drop\u2014one of the main causes of poor motor performance.<\/li>\n
    • Engineered stranding:<\/strong>The copper strands in each conductor are helically stranded in a uniform pattern to maintain conductor integrity and make termination in main panels easier.<\/li>\n<\/ul>\n
      \n

      Chapter Two: Double \u201cthermo\u201d insulation technology<\/h2>\n

      1. Primary insulation<\/h3>\n

      Each of the four cores is covered with high-quality PVC insulation.<\/p>\n

        \n
      • Color coding:<\/strong>El-Hegaz follows standard color codes\u2014red, yellow, blue, and black\u2014to simplify connection and reduce human errors that can cause serious problems in 3-Phase systems.<\/li>\n<\/ul>\n

        2. Outer thermo sheath<\/h3>\n

        This is the cable\u2019s protective shield.<\/p>\n

          \n
        • Mechanical durability:<\/strong>The outer sheath is made from thermally robust PVC and provides protection against impact, accidental crushing, and the mechanical stress of pulling the cable through vertical routes.<\/li>\n
        • Environmental resistance:<\/strong>The cable is designed to resist moisture, oils, and mild acids, making it suitable for demanding environments such as chemical plants and mechanical workshops.<\/li>\n<\/ul>\n
          \n

          Chapter Three: Field applications\u2014where the 50+25 cable excels<\/h2>\n

          1. Main distribution board (MDB) supply<\/h3>\n

          This cable can serve as a main connection between a transformer and the main distribution board in large administrative and residential buildings.<\/p>\n

          2. Operating large industrial motors<\/h3>\n

          For motors operating at 380 V and requiring high current, the El-Hegaz 50 mm\u00b2 conductor helps maintain stable voltage during startup current demand.<\/p>\n

          3. Central air-conditioning systems (chillers)<\/h3>\n

          Central cooling equipment requires continuous heavy power. The 50+25 thermo cable provides the capacity and protection needed for around-the-clock operation when correctly selected and installed.<\/p>\n

          \n

          Chapter Four: Economic and operational advantages<\/h2>\n
            \n
          1. Reduced thermal losses:<\/strong>High-quality copper reduces electrical energy lost as heat, improving overall system efficiency.<\/li>\n
          2. Ease of installation:<\/strong>Despite its large size, the flexibility of El-Hegaz stranded copper helps technicians route the cable inside confined electrical rooms.<\/li>\n
          3. Service life:<\/strong>The cable is designed for efficient operation for more than 35 years, reducing replacement and routine-maintenance costs.<\/li>\n<\/ol>\n
            \n

            Chapter Five: Safety standards<\/h2>\n
              \n
            • Fire resistance:<\/strong>The outer insulation is designed to be flame-retardant, resisting ignition and limiting flame spread when exposed to an external fire source.<\/li>\n
            • Voltage withstand:<\/strong>The cable is tested for electrical withstand appropriate to its intended application, helping protect connected systems from insulation failure.<\/li>\n<\/ul>\n
              \n

              Chapter Six: Expert installation tips<\/h2>\n
                \n
              • Use copper lugs:<\/strong>For 50 mm\u00b2 conductors, use correctly sized copper lugs and a hydraulic crimping tool to ensure full contact and prevent localized overheating.<\/li>\n
              • Observe the bending radius:<\/strong>Do not bend the cable too sharply; maintain the specified bending radius to protect the double insulation and internal strand arrangement.<\/li>\n
              • Ventilation:<\/strong>When installed on cable trays, leave sufficient spacing for airflow so the cable can dissipate heat during peak loads.<\/li>\n<\/ul>\n
                \n

                Chapter Seven: How to identify genuine El-Hegaz cable<\/h2>\n

                Counterfeit products may appear in large conductor sizes such as 50 mm\u00b2, so check:<\/p>\n

                  \n
                • Actual weight:<\/strong>Pure copper is dense, and a genuine coil should have a weight consistent with the manufacturer\u2019s technical specifications.<\/li>\n
                • Clear permanent marking:<\/strong>The name EL HEJAZ, cable size, and production date should be clearly and durably printed on the outer sheath.<\/li>\n<\/ul>\n
                  \n

                  Conclusion: El-Hegaz\u2014the power behind your projects<\/h2>\n

                  In conclusion, theEl-Hegaz 50+25 mm\u00b2 thermo copper cable<\/strong>is designed to give engineers stable performance and owners confidence. Its value lies in technical construction details that support safe, reliable current flow under demanding loads.<\/p>\n","protected":false},"excerpt":{"rendered":"

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