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Running lamps from slightly overated ballasts, I'll guess the striking will be fine but once struck the lamp currents will be higher than ideal, this might do two things I can think of: 1) the lamp's life will probably be shortened, but by how much is hard to say. 2) the colour temperature /...

Is there a reason as to why grey sheathed ones are used as opposed to tails with blue & brown outer sheaths? The tails here have blue & brown outer sheaths, I though they weren't double insulated at first but they are.

Quite so, the bit from me needed a little more qualification. Yes, quite out of place in a domestic environment. You bring to light there something I've also seen 1st hand. When I've looked at a sheet full of figures brought back from a site, where it has passed but you end up asking them...

The sad story of Air France flight 447 being the notable modern example of that. Air gapping is a valid form of insulation in many forms of electrical and electronic work, especially when voltages are high. Much better to have learned your trade first, by hand, and then to use computers...

That's a good point Chris!

Howard, don't be sorry and it's great that you came back to update us. Often these kind of threads on here are a little stumped by having someone on the other end with little experience and/or test kit. You're often limited in what you feel you can say to help them to keep things safe. So it's...

I have a Chesilvale JLS200 and a tone generator for it. Made by these folks now and similar to http://www.tempo-textron.com/prod_detail.cfm?cat=800&subcat=803&pid=10417 The dedicated tone generator is designed to hook up to telephone lines still live at 50v but for mains obviously you have...

As you've already started and there's a possibilty of exposure you really do need to establish whether you have asbestos in the tiles before you do anything else. Get somebody in for a professional opinion. I'm no expert on it but from some recent reading it's a problem when it's gone airbourne...

Harbourwoodwork pretty much says it all. You don't actually say what kind of noise it is that you want to stop. If the noise is low frequency through the structure of the building then it's very hard to stop it. But noise from voices you may have better success with. I'd say work on making your...

Yep! Gauranteed! It's only option 3 out of those that doesn't sound like a bodge. Have you thought about taking a brick or two out of the inner or outer wall just above the slate damp course and looking at what's actually going on? There's no substitute for knowing yourself what's what...

Check out CEJN 320 series connectors for decent quick release connectors at not too bad prices. http://www.cejn.com/Products/Pneumatics/Standard-Couplings--Nipples/Series-320-DN-76/ These work really and much better than the cheap ones which sometimes jam up or leak. Your local...

Another possibility for you. Do you have any police supported local community groups for your area? We have one here that's attended by the actual police who're on our beat and the residents and it works pretty well. We can raise issues with them directly and they quite proactive about them. We...

I think we have two lines going here. Firstly the original & main thread of 'do you have a damp problem'. And secondly, an interesting discussion on what we actually see in an operating Lectros system. The cement based plaster/render will also most likely reduce the walls ability to breathe...

It's the difference in the L & N currents that causes it to trip. That difference may or may not have gone to earth. You say 'but got progressively worse.' in your OP. That makes me think of something marginal or breaking down or rubbing/moving etc etc. Might sound silly, but have you thought...

A very interesting post. There's a lot there so I'll answer by writing bits as they come into my head. Are the walls covered with gypsum based plaster and modern paint? From the construction you describe it sounds like the house may have relied on pre-cement ie Lime construction (c1900?) as...

Lectrician, Any chance you could take a picture of what's inside the box next time you come across one and post it up? I was wondering if it's anything different from the modern version of it.

You don't need my approval to post here ngonk. Go for it.

Hi ngonk, People have made the thread a useful addition to the Lectros installation manual which should save others time. So if you've got anything to add then post away.

Fab to hear that you've gone out and done something about it. Don't look at sheer number of posts as a mark of experience, maybe the ratio of posts to thanks is a better yardstick. Your post reminds me of reading a query once where a guy asked advice about fitting firedoors. He was ridiculed...

It doesn't sound like a hard one to cut. Are the pipes plastic or copper?