As long as your paying I am all for it. :grin:
Originally Posted by benaround
In general it would add to our costs to place a shunt trip breaker in the machine room. At the least one additional large breaker and an enclosure for it. If it is not specified we will, and always have placed the shunt at the source of the feeder.
You lost me,:confused: either way at some point the fire alarm system and the line voltage meet in a common enclosure.
1. In Az. the ST would need a 120v control circuit and 2 dry contact connections for the FA system, making these FA connections in 480vac distribution equipment is at best a bad idea.
You could place a placard in the machine room describing the location of the shunt but I have never done that.
2.When testing the system it would be ( in many cases ) inconvient to have to find the distribution equipment to reset the ST breaker.
Most systems work best if they are kept simple rather than made complicated; therefore simplicity should be a key goal in design and unnecessary complexity should be avoided.