ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
ShoutChat Box
Recent Posts
Where is Everyone?
by gfretwell - 11/27/20 06:18 PM
Happy Thanksgiving
by gfretwell - 11/26/20 08:52 PM
Insulated Tools: A Waste of Money?
by HotLine1 - 11/26/20 12:28 PM
Ground fault remover :-)
by NORCAL - 11/26/20 08:13 AM
Work Gloves?
by sabrown - 11/25/20 01:54 PM
New in the Gallery:
Facebook follies, bad wiring
FPE in Germany pt.2
Who's Online Now
0 registered members (), 16 guests, and 14 spiders.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate Thread
enclosure under sprinkler ? #176830 04/14/08 01:51 AM
Joined: Apr 2008
Posts: 3
L
learner Offline OP
New Member

Hi:

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.

Leaner

Tools for Electricians:
Re: enclosure under sprinkler ? [Re: learner] #176864 04/14/08 10:18 PM
Joined: Aug 2005
Posts: 265
S
Sixer Offline
Member
Rule 26-008 and Appendix B
Is the enclosure in an electrical room or vault?


Sixer

"Will it be cheaper if I drill the holes for you?"
Re: enclosure under sprinkler ? [Re: Sixer] #176865 04/14/08 10:35 PM
Joined: Apr 2008
Posts: 3
L
learner Offline OP
New Member

Hi,sixer

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 07:52 AM
Joined: Jan 2006
Posts: 60
R
Rick Kelly Offline
Member
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 12:00 PM
Joined: Jun 2006
Posts: 613
M
mikesh Offline
Member
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 06:12 AM
Joined: Apr 2008
Posts: 3
L
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?



Featured:

2020 National Electrical Code
2020 National Electrical
Code (NEC)

* * * * * * *

2020 Master Electrician Exam Preparation Combos
2020 NEC Electrician
Exam Prep Combos:
Master / Journeyman

 

Member Spotlight
BEAMEUP
BEAMEUP
WA
Posts: 27
Joined: December 2004
Show All Member Profiles 
Top Posters(30 Days)
Trumpy 9
Popular Topics(Views)
272,046 Are you busy
205,943 Re: Forum
193,992 Need opinion
Powered by UBB.threads™ PHP Forum Software 7.7.3