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NOTE: This is an unformatted excerpt from our online fire protection training library.

NEC Requirements

Other NEC Requirements

Fire Alarm Conductors

The NEC requires that all conductors used in fire alarm systems be copper. Aluminum conductors are not permitted. Conductors may be solid or stranded At one time there was a restriction on the number of strands that could be used to create stranded conductors. However, this restriction has been removed from the NEC for several editions..
NOTE: This is an unformatted excerpt from our online fire protection training library.

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