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When in a raceway with not more than three current-carrying conductors, how many amperes can a 6 AWG THW copper conductor carry continuously?

A. 50 A
B. 55 A
C. 65 A
D. 75 A

Sagot :

GinnyAnswer
To determine the ampacity of a 6 AWG THW copper conductor in a raceway with not more than three current-carrying conductors, we will refer to the National Electrical Code (NEC) which provides specific guidelines for such scenarios.

### Step-by-step solution:

1. Identify the gauge and type of conductor:
- Conductor gauge: 6 AWG
- Insulation type: THW (Thermoplastic Heat and Water-resistant)

2. Determine the specification regarding the number of current-carrying conductors:
- The installation involves not more than three current-carrying conductors.

3. Refer to the NEC ampacity chart:
- Lookup the ampacity for a 6 AWG THW copper conductor.
- For conditions with not more than three current-carrying conductors, the National Electrical Code (NEC) specifies the ampacity values for different wire gauges and insulation types.

4. Conclusion from the lookup:
- According to the NEC, a 6 AWG THW copper conductor in a raceway with not more than three current-carrying conductors can continuously carry 55 amperes.

Therefore, the correct answer is:
b. 55 A
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