100 watt bulbs keep blowing?

[Clark3169]

Hi guys, can anyone help with this one? My customer had a problem with his two kitchen lights - 100 watt screw bulbs in a tilting downlight style fittings that kept blowing. After inspection one fitting was broken resulting in the bulb fitting being sat at an angle no doubt putting a strain on the contacts. Also the wiring was from an old pendant fitting which was stuffed up in the ceiling and wired pretty poorly so I changed the old pendant wiring using a junction box and changed the light fittings for new ones put the correct sleeving on the correct conductors and in the switches and both lights worked I turned them on and off a few times then left them on for a while before I left and all seemed fine. I also found a loose neutral in a switch in the lounge but I corrected that to. Anyway I just got a call the second kitchen light has blown again this time tripping the MCB (6A) there is an outside light, door bell, lounge light and these two kitchen lights on the circuit and thats all. (also in that order I believe) I haven't looked in the pendant fitting in the lounge yet for a loose neutral or short and I don't know if there are any other JB's anywhere but once if checked that what else could it be? Any help would be appreciated, thanks.

 

[UNG]

Are these lamps blowing at the same time of day or at random times

 

[pete555]

glad to see someone knows they are lamps not bulbs

they go in the ground gardeners use them

 

[pete555]

Hi guys, can anyone help with this one? My customer had a problem with his two kitchen lights - 100 watt screw bulbs in a tilting downlight style fittings that kept blowing. After inspection one fitting was broken resulting in the bulb fitting being sat at an angle no doubt putting a strain on the contacts. Also the wiring was from an old pendant fitting which was stuffed up in the ceiling and wired pretty poorly so I changed the old pendant wiring using a junction box and changed the light fittings for new ones put the correct sleeving on the correct conductors and in the switches and both lights worked I turned them on and off a few times then left them on for a while before I left and all seemed fine. I also found a loose neutral in a switch in the lounge but I corrected that to. Anyway I just got a call the second kitchen light has blown again this time tripping the MCB (6A) there is an outside light, door bell, lounge light and these two kitchen lights on the circuit and thats all. (also in that order I believe) I haven't looked in the pendant fitting in the lounge yet for a loose neutral or short and I don't know if there are any other JB's anywhere but once if checked that what else could it be? Any help would be appreciated, thanks.

untill you have checked all the items you have mentioned and cleared it,s hard to say come backwhen these have been checked you may find the fault yourself

 

[Clark3169]

glad to see someone knows they are lamps not bulbs

they go in the ground gardeners use them

From the English dictionary:-

bulb[ buhlb ]
noun
1. a plant growing from such a bud.
2. any round, enlarged part, especially at the end of a cylindrical object: the bulb of a thermometer.
3. an incandescent or fluorescent electric lamp.

I believe we are both right ;-) however the correct terminology would be to use lamps but I've been speaking to customer all day and been using bulbs.

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Are these lamps blowing at the same time of day or at random times

Random so maybe not over voltage but can't rule it out till I test I suppose.

 

[Clark3169]

untill you have checked all the items you have mentioned and cleared it,s hard to say come backwhen these have been checked you may find the fault yourself

Yes I know but was hoping to brainstorm all possibilities so I'm fully peeped when I go back. Thanks for s replies peeps.

 

[KAS1]

Cheap lamps

 

[Clark3169]

Yes I know but was hoping to brainstorm all possibilities so I'm fully peeped when I go back. Thanks for s replies peeps.

I meant "Preped" soz.

 

[Clark3169]

Cheap lamps

No I got him branded ones from whole sellers TLC weren't cheap.

 

[ayjay]

get good quality ones(light bulbs)