Faulty Lighting PICS

[Lectrician]

Been to a large manufacturing site and warehouse, the warehouse was built in the early eightees, and is generally very well constructed and wired, with many original features (sounds like a property show!).

Lighting in the warehouse is by 250watt son low bays (I say low bays, they are neither high nor low - somewhere in the middle! Quite an odd design actually, should have a got a pic). The low ways are attached to lighting trunking which is attached to the purlins. Every fitting has it's flex 'scotch-locked' onto the 2.5mm feeder, with the earth lugged to the trunking - neither ideal!

We have been asked to look at the issue with the old 3036 fuses blowing daily, leaving them with banks of lights out pretty much constantly, and rarely the same ones each day.....

Randomly picked one light fitting......

Each one we came to was exactly the same!

 

[RF Lighting]

Oops!! best get a few boxes of klik ceiling roses and loop in boxes on order then


I'm loving the use of scotch blocks though

 

[Lectrician]

Well, we will certainly quote.......for 224 of them! Also quoting to swap out the old boards for new.

You can clearly see on many of these where they have shorted to the trunk. I reckon there could well be a few dodgy fittings causing problems too, but this needs sorting before you can do anything further. The flexes are like it over pretty much their whole length...

 

[RF Lighting]

Is it just old flex, or is it the environment that has caused it to perish so badly? The PVC looks in pretty good condition.

 

[ericmark]

I remember having a problem in a car factory where the mist of soluble oil was effecting the plastic. We could not use standard flame proof fittings as they rotted.

Maybe something in this factory was affecting the cables. If so you need to find out what to ensure new stuff does not go same way.