Originally Posted by
gobbleteller
Following on with ians original thread, I had a similar situation the other day. For some or other reason the office lights at our mine are supplied through an earth leakage relay.
These lights are all fluorescent 5 foots. Usually a CB will feed several fittings. Luckily this only was only feeding five.
What is the best way to test such lighting systems, as I see if you test the ballast to earth, all are down? Do you just start at a point and work towards the faulty light or is there an easier way to do it. From what I've seen in recent posts, you guys have years of experience and know what you are talking about.
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