Code Articles
Ampacity
Volume Allowance
Small Conductors
Resistance of Wire
100

What article covers the Scope of the NEC?

Article 90

100

What is the ampacity of a #2 AWG THHN copper conductor?

115 A

100

What is the volume allowance for a #8 AWG in in³?

3.00 in³

100

What size OCPD does a #12 AWG go on?

20 A

100

How many ohms/kft does a #10 AWG solid have?

1.21 ohms

200
What article covers the definitions within the NEC?

Article 100

200

What is the ampacity of a #4/0 AWG TW copper conductor?

195 A

200

What is the volume allowance for #12 AWG in cm³?

36.9 cm³

200

What size OCPD does a #10 AWG go on?

30 A

200

How many ohms/kft does a #8 AWG stranded wire have?

.778 ohms

300

What article covers branch circuits within the NEC?

Article 210

300

What is the ampacity of a 250 KCMIL THHN copper conductor installed in a raceway with 6 current carrying conductors?

232 A

300

What is the volume allowance for 6 - #10 AWG in in³?

15 in³

300

What size OCPD does an aluminum #12 AWG go on?

15 A

300

How much resistance is there in 1734' of #1 AWG?

.267 ohms

400

What article covers NM Cable in the NEC?

Article 334

400

What is the ampacity of a #1 AWG THWN copper conductor installed in conduit in an ambient temperature of 117°F?

97.5 A

400

What is the volume allowance in in³ for the following:

6 - #12 AWG

4 - #10 AWG

2 - #8 AWG

29.5 in³

400

What size OCPD does an aluminum #10 AWG go on?

25 A

400

How much resistance is there in 2378' of solid #8 AWG?

1.82 ohms

500

What article covers LFMC in the NEC?

Article 350

500

What is the ampacity of a #3/0 AWG TW copper conductor installed in a raceway with 9 current carrying conductors in a ambient temperature of 106°F?

82 A

500

What is the volume allowance in in³ for the following:

2 - 30 A receptacles on separate circuits

2 - 20 A circuits passing through


31.5 in³

500

What size OCPD does a #18 AWG go on with all circumstances met?

7 A

500

How many feet and miles (5280 ft/1 mile) are need to make 3 ohms of resistance in a 500 KCMIL?

116,279 ft

22.02 miles