A high-rise apartment building is being wired with a nonmetallic sheathed cable (NM). What is the maximum length of NM cable that can be used without a junction box?

Texas Master exam practice question · Services & Derived Systems

A high-rise apartment building is being wired with a nonmetallic sheathed cable (NM). What is the maximum length of NM cable that can be used without a junction box?

A30 feet
B50 feet
75 feet
D100 feet

Exam tip

Remember the maximum lengths for NM cable runs without junction boxes.

Why C is correct

According to 2026 NFPA 70 NEC, the maximum length of NM cable without a junction box is 75 feet. Options A, B, and D are incorrect as they exceed the allowed length.

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A high-rise apartment building is being wired with a nonmetallic sheathed cable (NM). What is the maximum length of NM cable that can be used without a junction box?

A high-rise apartment building is being wired with a nonmetallic sheathed cable (NM). What is the maximum length of NM cable that can be used without a junction box?

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