Question

A new bulk system is to be installed.In compliance with NFPA 70 the new wiring is being run installed underground from initiating device to a junction box located where the wiring first enters the building. NFPA 99 permits what minimum number of sets of wire to connecting the initiating device with a junction box for each signal?

A) 1
B) 2
C) 3
D) 4

Answer 1

According to NFPA 99, the minimum number of sets of wire required to connect the initiating device with a junction box for each signal is one. This ensures electrical safety, which is a fundamental aspect of systems covered by NFPA standards.

Step-by-step explanation:

The question is inquiring about the installation of a bulk system and the wiring requirements in compliance with NFPA 70 and NFPA 99. NFPA 99 relates to healthcare facilities and their electrical systems, and it specifies the minimum requirements for the installation of electrical systems, which includes the connection from initiating devices to a junction box. According to NFPA 99, the minimum number of sets of wire connecting the initiating device with a junction box for each signal is one. It is important that electrical safety systems and devices such as circuit breakers, fuses, and GFIs (ground fault interrupters) are used to safeguard against thermal and shock hazards. These safety systems often include a three-wire setup with a live/hot, neutral, and earth/ground wire, and they provide grounding to the appliance as well as overcurrent protection.