• Welcome to the new and improved Building Code Forum. We appreciate you being here and hope that you are getting the information that you need concerning all codes of the building trades. This is a free forum to the public due to the generosity of the Sawhorses, Corporate Supporters and Supporters who have upgraded their accounts. If you would like to have improved access to the forum please upgrade to Sawhorse by first logging in then clicking here: Upgrades

Lock-on for FACP

retire09

Silver Member
Joined
Feb 19, 2010
Messages
365
Location
Alaska
Does any code require a breaker lock-on device to protect the circuit supplying the Fire Alarm Control Panel?
 
Commentary from the NFPA 72 Handbook:

"The requirements of paragraph 4.4.1.4.2 through paragraph 4.4.1.4.2.3 are intended to protect the power supply from tampering, to ensure reliability, to aid in troubleshooting, and to help ensure the safety of those who service the equipment. Because the circuit disconnecting means can include the use of a circuit breaker, the requirements of paragraph 4.4.1.4.2.2 limiting access to authorized personnel can be accomplished by using a circuit breaker lock that is listed for use with the circuit breaker. Circuit breaker locks allow the breaker to trip, but do not allow tampering."
 
Some code officials allow the locking of the circuit panel box or having the electrical room locked (authorized personnel only) to meet the intent of the section of NFPA 72 which is in accodance with the intent of NFPA 70 for allowing only authorized pesonnel to work on eletrical panels, equipment.

That is what the comment subject to local AHJ interpretation meant.
 
This is what is accepted here.

DSCN2047.jpg
 
Top