ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
ShoutChat
Recent Posts
Using THWN on automotive circuits
by gfretwell - 03/22/23 12:27 AM
Continuous load
by HotLine1 - 03/08/23 02:11 PM
How's all our Non-US folks doing?
by dsk - 03/08/23 11:56 AM
Old Computers?
by Bill Addiss - 03/04/23 05:06 PM
New in the Gallery:
Burger King crown sillyness
Burger King crown sillyness
by wa2ise, December 11
240/208 to a house
240/208 to a house
by wa2ise, October 9
Who's Online Now
0 members (), 12 guests, and 10 robots.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate Thread
Joined: Oct 2001
Posts: 597
E
Member
Hey Folks!

Been lurking for awhile. . .

Every once and awhile I get situations where the client has to have a light that can only be delivered from a trim that can only be installed in a thermally protected but non-IC rated roughin recessed housing. And, as Murphy will remind me again and again, at least one can has to go in an insulated ceiling.

Thinking specifically of
Quote
410.66 B Thermal insulation shall not be installed above a recessed luminaire (fixture) or within 75 mm (3 in.) of the recessed luminaire’s (fixture’s) enclosure, wiring compartment, or ballast unless it is identified for contact with insulation, Type IC.
What are some of the ways that insulation dams are being built (around a nonIC recessed luminaire) and accepted by the AHJ around the country?

Also: In the areas that have Air Tight requirements, are there solutions involving insulation dams or the like that allow the nonIC thermal protected can to be installed in an insulated ceiling?


Al Hildenbrand
Stay up to Code with the Latest NEC:


2020 NEC & Related Reference & Study Guides
2020 NEC & Related Reference & Study Guides
Pass Your Exam the FIRST TIME with these Exam Prep Combos:
 

>> Master Electrician Exam Prep     >> JourneyMan Electrician Exam Prep
 

Joined: Nov 2001
Posts: 280
M
Member
ElectricAl:
I had the same question, and was told there are such animals, but I cant find them anywhere, supposedly made out of fibreglass and looks like a dome and is set right over the top of the Non-IC fix,Ooops ah Luminaire,but so far I have not been able to locate one.
hope you have better luck.
-Mark-

Joined: Feb 2002
Posts: 22
W
Member
There is an article in a recent ( last month or two ) issue of "Family Handyman" that shows a box being built around a recessed light. I don't recall if they specified if it was aimed at IC or non-IC lights. They used some sort of pink styrofoam looking stuff, taped and caulked to be airtight ( or nearly so ). This box was placed over ( or built in place over ) the recessed light.

I don't know if this addresses your question, but it might.

I'm a homeowner Jim, not an Electrician!

Joined: Dec 2000
Posts: 4,291
Member
A little bit of drywall works great. Remember that if a piece of chicken wire keeps it 3" away, it's Code approved! [Linked Image]

Joined: Oct 2000
Posts: 5,392
S
Member
as well as chickenproof... [Linked Image]

Joined: Oct 2001
Posts: 597
E
Member
Thanks for the feedback.

In the past I've put up plywood or drywall enclosures to keep the insulation clear of the recessed housing. Or I've gotten the GC to get someone to do it to my specs.

Al


Al Hildenbrand

Link Copied to Clipboard
Featured:

Tools for Electricians
Tools for Electricians
 

* * * * * * *
2023 National Electrical Code (NEC)
2023 NEC Now Available!
 
* * * * * * *

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

 

Member Spotlight
AllClear
AllClear
Belmond Iowa US
Posts: 44
Joined: August 2005
Top Posters(30 Days)
triple 2
BigB 1
Popular Topics(Views)
304,938 Are you busy
233,352 Re: Forum
218,073 Need opinion
Powered by UBB.threads™ PHP Forum Software 7.7.5