Latest Discussions : Electrical & Lighting


03:59PM | 09/21/02
Member Since: 09/20/02
1 lifetime posts
I purchased a new 2 light ceiling fixture to replace my old kitchen light. When I opened the box it contained a warning. It said, "For supply connections use wire suitable for 90 C Warning: Risk of fire most dwellings built before 1985 have supply wire rated 60 C" My house was built before 1985 how can I tell if I can install this safely myself, and will I have this same problem if I return this light and get another one?

Joe Tedesco

07:16PM | 09/21/02
Member Since: 07/27/02
140 lifetime posts

[This message has been edited by Joe Tedesco (edited April 10, 2003).]

doug seibert

11:13AM | 09/22/02
Member Since: 08/10/02
842 lifetime posts

Well I read that NRHA page and find nothing that indicates a solution to Ovillesa's problem.........

What's the correct way to solve the Wire Temp Rating situation?...........

Does providing an accessible junction box before the ceiling box and new rated wiring from the junction box to the fixture constitute a code compliant/safe installation?

Joe Tedesco

12:39PM | 09/22/02
Member Since: 07/27/02
140 lifetime posts

[This message has been edited by Joe Tedesco (edited April 10, 2003).]


08:46PM | 09/22/02
Member Since: 09/09/02
7 lifetime posts
Hello all,

Ovillesa - If your house was built before the mid 80's, it probably has 60C wire in it. If you wish, you could climb into your attic and look at the outer jacket (assuming it is sheathed electrical cable) and read the temperature rating there. Also, you will most likely have this problem with any new light fixture you buy today. The insulation on the older wires just doesn't withstand the heat well enough from celing light fixtures. It is really amazing how hot it can be in a celing box when there is 120-200 Watts of light below it. Although changing a light fixture is a simple task, this may be a job for an electrician.

Doug - what you suggest will work fine. I myself have done that too, but the only problem I have had is sometimes one "throw away" box turns into two or three because of switch legs and feeds to other lights . . . .especially when there isn't enough existing wire there to work with


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