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Current carrying capacity of bare conductors
Standard
*
IEC
NEC
Method of installation
*
C|Single-core or multi-core cables on a wall
E|Multi-core cables in free air(Clearance to wall not less than 0.3 times cable diameter)
F|Single-core cables, touching in free air(Clearance to wall not less than one cable diameter)
G|Single-core cables, spaced in free air(At least one cable diameter)
Conductor
*
Copper
Aluminum
Type
*
Exposed to touch
Not exposed to touch
Wire size
*
1.5mm²
2.5mm²
4mm²
6mm²
10mm²
16mm²
25mm²
35mm²
50mm²
70mm²
95mm²
120mm²
150mm²
185mm²
240mm²
Phase conductors in parallel
*
1
2
3
4
5
6
7
8
Ambient temperature
*
10°C｜50°F
15°C｜59°F
20°C｜68°F
25°C｜77°F
30°C｜86°F
35°C｜95°F
40°C｜104°F
45°C｜113°F
50°C｜122°F
55°C｜131°F
60°C｜140°F
65°C｜149°F
70°C｜158°F
75°C｜167°F
80°C｜176°F
85°C｜185°F
90°C｜194°F
95°C｜203°F
Circuits in the same conduit
*
1
2
3
4
5
6
7
8
9
Calculate
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