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Notice:
NEC is a registered trademark of
the National Fire Protection Association, Inc. All NEC
references by Electrical Helper are interpretations of the NEC
by the Electrical Helper staff and are not NEC statements. The
official position of the NEC requires that the NEC be referred
to in its entirety. |
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Table 400.5(A) Allowable
Ampacity for Flexible Cords and Cables |
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[Based on
Ambient Temperature of 30°C (86°F). See 400.13 and Table 400.4.] |
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Thermoset Types C, E, EO, PD, S, SJ, SJO,
SJOW, SJOO, SJOOW, SO, SOW, SOO, SOOW, SP-1, SP-2, SP-3, SRD, SV,
SVO, SVOO |
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Size (AWG) |
Thermoplastic Types TPT, TST |
Thermoplastic Types ET, ETLB, ETP, ETT,
SE, SEW, SEO, SEOW, SEOOW, SJE, SJEW, SJEO, SJEOW, SJEOOW, SJT, SJTW,
SJTO, SJTOW, SJTOO, SJTOOW, SPE-1, SPE-2, SPE-3, SPT-1, SPT-1W,
SPT-2, SPT-2W, SPT-3, ST, SRDE, SRDT, STO, STOW, STOO, STOOW, SVE,
SVEO, SVT, SVTO, SVTOO |
Types HPD, HPN, HSJ, HSJO, HSJOO |
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Column A+ |
Column B+ |
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27* |
0.5 |
— |
— |
— |
|
20 |
— |
5** |
*** |
— |
|
18 |
— |
7 |
10 |
10 |
|
17 |
— |
9 |
12 |
13 |
|
16 |
— |
10 |
13 |
15 |
|
15 |
— |
12 |
16 |
17 |
|
14 |
— |
15 |
18 |
20 |
|
12 |
— |
20 |
25 |
30 |
|
10 |
— |
25 |
30 |
35 |
|
8 |
— |
35 |
40 |
— |
|
6 |
— |
45 |
55 |
— |
|
4 |
— |
60 |
70 |
— |
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2 |
— |
80 |
95 |
— |
*Tinsel cord.
**Elevator cables only.
***7 amperes for elevator cables only; 2 amperes for other types.
+The allowable currents under
Column A apply to
3-conductor cords and other multiconductor cords connected to
utilization equipment so that only 3 conductors are
current-carrying. The allowable currents under
Column B apply to
2-conductor cords and other multiconductor cords connected to
utilization equipment so that only 2 conductors are
current-carrying.
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