Cable size chart and explanation of how to use them
Cable size chart and explanation of how to use them
Cables
If you are calculating the section ofcable based on the surrounding conditions and specific details, you can take these factors into consideration when looking at wire section calculation tables or cable. Here’s how to include these factors in your clip selection process:
- Conductor type (copper or aluminum):
- Determine the type of conductor you will use in the cable (copper or aluminum), and make sure that the clip used matches the type of conductor.
- Type of insulation and the presence of an armed shield:
- Determine the type of insulation used in the cable (PVC or XLPE) and ensure it matches the expected ambient temperature.
- If the cable has a protective armored shield, be sure to include this in your clip selection.
- External ambient temperature:
- Determine the expected outside ambient temperature and be sure to use temperature correction factors if conditions change from standard values.
- Type of electrical network and number of conductors:
- Determine the type of electrical network (three-phase or single-phase) and the number of conductors used.
- Local or international specifications:
- Ensure compliance with recognized local or international specifications in the field of electrical installations.
Using these factors, you can select the appropriate cable section that meets the requirements of specific operating conditions.
Copper cable loads table
Copper cable load table according to IEC international standard specifications for PVC cables. The following table shows the current that a copper cable can withstand depending on the laying method and cross-sectional area:
| Extension method | Cross-sectional area Electrical voltage | Maximum current |
| | | | |
+—————————————-+————- —–+——————+——————+
| Method A1 | 16 | 230V | 42A |
| Method A2 | 25 | 230V | 56A |
| Method A3 | 35 | 230V | 73A |
| A4 method | 50 | 230V | 94A |
| Method B1 | 16 | 400V | 31A |
| Method B2 | 25 | 400V | 41A |
| Method B3 | 35 | 400V | 54A |
| Method B4 | 50 | 400V | 70A |
+————————-+———— ——+——————+——————+
You can find out the appropriate extension method and choose the appropriate cable from the table based on your needs and electrical system requirements.
| Cross-sectional area of the wire (mm2) | Cable extension method | ||||||
|---|---|---|---|---|---|---|---|
| A1 | A2 | B1 | B2 | C | D1 | D2 | |
| Current carried by copper cable (ampere) | |||||||
| 1.5 | 13.5 | 13 | 15.5 | 15 | 17.5 | 18 | 19 |
| 2.5 | 18 | 17.5 | 21 | 20 | 24 | 24 | 24 |
| 4 | 24 | 23 | 28 | 27 | 32 | 30 | 33 |
| 6 | 31 | 29 | 36 | 34 | 41 | 38 | 41 |
| 10 | 42 | 39 | 50 | 46 | 57 | 50 | 54 |
| 16 | 56 | 52 | 68 | 62 | 76 | 64 | 70 |
| 25 | 73 | 68 | 89 | 80 | 96 | 82 | 92 |
| 35 | 89 | 83 | 110 | 99 | 119 | 98 | 110 |
| 50 | 108 | 99 | 134 | 118 | 144 | 116 | 130 |
| 70 | 136 | 125 | 171 | 149 | 184 | 143 | 162 |
| 95 | 164 | 150 | 207 | 179 | 223 | 169 | 193 |
| 120 | 188 | 172 | 239 | 206 | 259 | 192 | 220 |
| 150 | 216 | 196 | 262 | 225 | 299 | 217 | 246 |
| 185 | 245 | 223 | 296 | 255 | 341 | 243 | 278 |
| 240 | 286 | 261 | 346 | 297 | 403 | 280 | 320 |
| 300 | 328 | 298 | 394 | 339 | 464 | 316 | 359 |
Aluminum cable loads table
According to the international standard specifications IEC for PVC cables. The following table shows the current thataluminum cable can withstand depending on the laying method and cross-sectional area:
+————————-+—————— +——————+——————+
| Extension method | Cross-sectional area Electrical voltage | Maximum current |
| | | | |
+—————————————-+————- —–+——————+——————+
| Method A1 | 16 | 230V | 38A |
| Method A2 | 25 | 230V | 49A |
| Method A3 | 35 | 230V | 62A |
| A4 method | 50 | 230V | 78A |
| Method B1 | 16 | 400V | 30A |
| Method B2 | 25 | 400V | 38A |
| Method B3 | 35 | 400V | 49A |
| Method B4 | 50 | 400V | 62A |
+————————-+———— ——+——————+——————+
Please choose the appropriate method according to your requirements, so that you can know the suitable wire and the current the cable can bear.
| Cross-sectional area of the wire (mm2) | Cable extension method | ||||||
|---|---|---|---|---|---|---|---|
| A1 | A2 | B1 | B2 | C | D1 | D2 | |
| Current withstand by aluminum cable (Ampere) | |||||||
| 2.5 | 14 | 13.5 | 16.5 | 15.5 | 18.5 | 18.5 | – |
| 4 | 18.5 | 17.5 | 22 | 21 | 25 | 24 | – |
| 6 | 24 | 23 | 28 | 27 | 32 | 30 | – |
| 10 | 32 | 31 | 39 | 36 | 44 | 39 | – |
| 16 | 43 | 41 | 53 | 48 | 59 | 50 | 53 |
| 25 | 57 | 53 | 70 | 62 | 73 | 64 | 69 |
| 35 | 70 | 65 | 86 | 77 | 90 | 77 | 83 |
| 50 | 84 | 78 | 104 | 92 | 110 | 91 | 99 |
| 70 | 107 | 98 | 133 | 116 | 140 | 112 | 122 |
| 95 | 129 | 118 | 161 | 139 | 170 | 132 | 148 |
| 120 | 149 | 135 | 186 | 160 | 197 | 150 | 169 |
| 150 | 170 | 155 | 204 | 176 | 227 | 169 | 189 |
| 185 | 194 | 176 | 230 | 199 | 259 | 190 | 214 |
| 240 | 227 | 207 | 269 | 232 | 305 | 218 | 250 |
| 300 | 261 | 237 | 306 | 265 | 351 | 247 | 282 |
Electrical wire size charts PDF
| Wiring table | File size | Download Link |
|---|---|---|
| Swedish wiring tables | 13MB | Google Drive |
If you have any inquiry, please contact us freely and we will be happy to serve you.
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