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Re: Theelectrikid's camera returns... [Re: Theelectrikid] #208496 01/23/13 01:22 AM
Joined: Feb 2004
Posts: 1,431
Lostazhell Offline
Member
TW doesn't do any better than cloth K&T under overlamped fixtures from what I've seen.. Too bad no one ever came up with a Type S adapter to limit an edison base to 60 watts...

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Re: Theelectrikid's camera returns... [Re: Theelectrikid] #208508 01/23/13 11:03 PM
Joined: Apr 2002
Posts: 7,105
HotLine1 Offline
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The federal gov't elimination over time of the incandescent bulbs may help the heat situation. That said, the early CFL screw-in, self ballasted, created some heat.



John
Re: Theelectrikid's camera returns... [Re: Theelectrikid] #208525 01/25/13 01:17 AM
Joined: Apr 2004
Posts: 810
Theelectrikid Offline OP
Member
Randy, if it wasn't for what John posted I'd be running to the patent office.

The two remaining hi-hats have 10W LED bulbs now which help greatly (and light up the stairwell a LOT better).


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Re: Theelectrikid's camera returns... [Re: Theelectrikid] #208535 01/25/13 10:38 PM
Joined: Jul 2002
Posts: 8,262
Trumpy Offline
Member
Ian,
Over here, it is standard trade practice to use fibreglass sleeving over the phase and neutral wires that actually make contact with the bulb in light fittings.
When I say "standard practice", I mean that only the clued-up, responsible electricians are doing this.

As an Inspector, I've failed at least 2-3 installs where this has not happened.

As a Fire Officer, one of the most annoying calls to attend, is a roof fire started by an over-lamped (sometimes 150W+) fitting with the cover removed, the top of the bulb is always the hottest part (when the bulb is mounted base upwards), that heat is borne by the light socket, the terminals and ultimately the wiring attached to it.
Using fibreglass sleeving minimises the risk of a short circuit in the roof or around timber that the fitting is screwed to.

Re: Theelectrikid's camera returns... [Re: Theelectrikid] #208537 01/26/13 12:25 PM
Joined: Dec 2001
Posts: 2,454
T
Texas_Ranger Offline
Member
Store-bought fixtures are usually supplied with silicone or fiberglass sleeving, but everyone knows what to do with it.

Re: Theelectrikid's camera returns... [Re: Theelectrikid] #208540 01/26/13 04:32 PM
Joined: Jul 2004
Posts: 9,382
G
gfretwell Offline
Member
Lamp holders are typically wired with 105c fixture wires and sometimes I see the fiberglass sleeve where it penetrates the top of the base on a ceiling luminaire. Your mileage may vary when it comes to Asian manufacturers.
They generally are arranged to keep the wire away from the lamp. It is still exposed to the heat, especially when they ignore the "60 watt" label. I guess that may be less of a problem now that our government has outlawed 75 and 100w lamps.


Greg Fretwell
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