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John Rumm John Rumm is offline
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Default Moving ceiling light

On 23/04/2017 18:34, wrote:
On Sunday, 23 April 2017 15:32:22 UTC+1, John Rumm wrote:
On 23/04/2017 12:55, tabbypurr wrote:
On Sunday, 23 April 2017 09:52:35 UTC+1, dennis@home wrote:
On 23/04/2017 07:38, tabbypurr wrote:

pendant lights are rated 100w max.

Never put a photoflood 2 lamp in a pendant before?

I've had other people do stupid things like that. 275W in a plastic holder does not go well.


150W GLS lamps were commonly available, and fine in a normal pendant
fitting. You had to take care with the choice of shade though.


There's more than one grade of pendant, they have different max wattage ratings. Is it T1 & T2?


Yup, the BS specifies that they are tested with cap temperature of 175
deg C for T1 and 220 deg C for T2 - however it states that is not to be
confused with the limiting temperature for operation, and refers to IEC
60432. That talks about 12 month average temps and for 150 and 200W
lamps specifies the average should not exceed 135 deg C for a normal
bayonet cap lamp. (which suggests that in reality, either grade of
holder should survive a 150W lamp)


--
Cheers,

John.

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