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I remember when I was called to a pumping station site which had lost all power, which turned out to be a DNO power failure. The DNO, UKPN, came out and supplied a generator for us. The site was fed from a UKPN 11KV fed into a UKPN substation (on our site) with a 11KV to 415V 800KVA transformer...

Could be the end of a Radial.

Everything will 'work' without an earth connection as that's not what the earth is for. The earth is there as a fault path so, in the event of a fault, say a live wire coming loose and touching the front of a socket, enough current will flow causing the protective devices to operate (fuse, MCB...

Round our way we've had all new street lighting installed. Each one has its own sensor, but all the lights in the street "talk" together via a small aerial on the top. It requires that a number of lights (think 4 min) "think" it is dark before they will turn on. Supposed to stop the odd one...

Slightly off topic, we had a power cut at one of our remote sites over the weekend (DNO 11kV cable fault) which has two detached houses nearby. Our site has its own 11kV > 415V transformer, and the two houses have a smaller 11kV - 230V DNO owned transformer. The DNO supplied a small diesel...

Cheers guys. Going to try a few small local places as suggested above. My local tipsons don't do this sort of engraving for some reason.

Thanks for that. Looking at some links now. Thinking it might be better to have labels made for us at the price of those machines. (y)

Not exactly a DIY electrician type question, but i wonder if anyone has any experience of making engraved labels. I'm looking for a machine to produce labels such as in the image below. I think that one is on 6mm acrylic. All i can find on Google are eBay special build at home laser engravers...

Normally closed contact labled as eartho_O :eek:

Easy PiD Description

I remember using the tufnol brown stuff as an apprentice, and although this is similar its not quite the same. I bumped into one of the contractors tidying up some bits and asked. Its PVC sheet. From here http://uk.rs-online.com/web/p/solid-plastic-sheets/7048217/ Various sizes too. Not sure...

Ok, maybe the black Hach one wasn't the best example. I know what it is, I just don't know what to search for. I figure RS would stock this stuff. I've only ever seen it in that grey (as in the ATi example). I think its acrylic. Used by contractors in industrial locations (i work on water...

Maybe this is the wrong place but, i'm looking for the correct name for the kind of back board that contractors usually install instruments or control panels on. Usually grey and about 10mm thick. I've attached a couple of stock images for the kind of thing I'm after. The grey/black board that...