Final answer:
Non-power-limited fire protective signaling circuits can share an enclosure with power-limited fire protective signaling circuits if all conductors are insulated for the maximum voltage present, safeguarding against electrical hazards like thermal overload and shock.
Step-by-step explanation:
Non-power-limited fire protective signaling circuits and power-limited fire protective signaling circuits may occupy the same enclosure, cable, or raceway provided all conductors are insulated for maximum voltage of any conductor within the enclosure, cable or raceway.
This ensures the safety features associated with both types of circuits are preserved, and it prevents electrical hazards such as thermal overload and electric shocks. Safety devices such as circuit breakers, fuses, and ground fault circuit interrupters (GFCI) play critical roles in electrical safety.
Circuit breakers and fuses interrupt excessive currents to prevent thermal hazards, while GFCIs prevent shocks by detecting loss of current to unintentional paths. Installing multiple circuits in a single enclosure increases the importance of these safety measures.