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enclosure under sprinkler ? #176830 04/14/08 02:51 AM
Joined: Apr 2008
Posts: 3
learner Offline OP
New Member


Base on CEC .

Does anybody know " What type enclosure box - 3R or 6P is right choice to used Under sprinkler " ?

Which rule?

thank you advance.


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Re: enclosure under sprinkler ? [Re: learner] #176864 04/14/08 11:18 PM
Joined: Aug 2005
Posts: 265
Sixer Offline
Rule 26-008 and Appendix B
Is the enclosure in an electrical room or vault?


"Will it be cheaper if I drill the holes for you?"
Re: enclosure under sprinkler ? [Re: Sixer] #176865 04/14/08 11:35 PM
Joined: Apr 2008
Posts: 3
learner Offline OP
New Member


Thank you.

the quiz not point out where is it.
from "Rule 26-008 and Appendix B" & table 65, I still can't make sure which type is right.

so could you please give more recommend?

Re: enclosure under sprinkler ? [Re: learner] #176880 04/15/08 08:52 AM
Joined: Jan 2006
Posts: 60
Rick Kelly Offline
As per 2-400 and Table 65, type 4, or better, would be required.

Re: enclosure under sprinkler ? [Re: Rick Kelly] #176892 04/15/08 01:00 PM
Joined: Jun 2006
Posts: 613
mikesh Offline
If the sprinkler is usually operating a type 4 is required. If it is for fire protection then any enclosure appropriate for the area without spriklers is ok. The normal use is what we determine the enclosure type not for a fire.

Now having said that there still are requirements for enclosures and equipment where a stream of water from a sprinkler head is required then 26-008 but that applies to the panels, transformers, switch boards etc.

A normal outlet box or JB where only wire and devices are installed would not require a special enclosure or every sprinled building would need to be completely wired per section 22.

In the case of a fire I presume we don't want the distrobution or transformers to fail from the sprikler putting water on the equipment. A fire pump or emergency lighting might be at stake. A wet location JB is overkill as this is a dry location except when a fire is present.

Re: enclosure under sprinkler ? [Re: mikesh] #177650 05/09/08 07:12 AM
Joined: Apr 2008
Posts: 3
learner Offline OP
New Member

Thank you all.
because It's a quiz. the answer is type 3R or 6P only.
base on R26-008. I choice 3R. is it right?


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