LFMC Wiring Methods

Where LFMC is used in a Class II, Division 1 location as permitted in 502.10, it shall ______.

a) not be unsupported
b) not exceed 6 ft in length
c) include an equipment bonding jumper of the wire type
d) be Listed for use in Class I locations

See answer and applicable Code reference

The correct answer is: c) include an equipment bonding jumper of the wire type

Article 502 covers the requirements for electrical and electronic equipment and wiring for all voltages in Class II, Division 1 and 2 locations where fire or explosion hazards may exist due to combustible dust. As noted in Sec. 502.30(B), "Liquidtight flexible metal conduit shall include an equipment bonding jumper of the wire type in compliance with 250.102."

 

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