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SONs will work on a PIR but take a good minute to reach any decent brightness and once they turn off, will not strike until they have cooled down so aren't suitable. As most PIRs are rated about 500w, you would either have to find one rated at least 1500w to do all three halogens or as...

To get the bend into the house. Gland the cable off into a white stop end box. Then take the sheathed cable through the back of the box through a drilled hole into the loft space then change to T&E there. It will be easier to make any future terminations in the loft rather than up a ladder. It...

there's nothing wrong with using JBs under floorboards so long as you make them accessible. Cut the floorboard above the JB so that it only spans 2 joists, fit battens if necessary. Write "JB" on the floorboard and sketch it on any plans you have.

I'm swapping the front with the back which have been balanced from new. I'll do this one at a time to see if it makes any difference. The weights they have fitted are the standard knock on type on the rim. But they have only fitted them to the inside rim. On another note, how cheapo is the...

I've just had a couple of tyres fitted at a well known NATIONAL tyre fitting company. Ever since, I have had vibration around 65mph. I've had it back twice and each time they have said the balancing was out, why? On the last occasion, the manager did it himself and said it was done to 1...

many companies contract the work out so that their electricians aren't tied up for a week or two. We normally get charged about £1-80 per appliance. Theres definately a market out there, good luck.

the RCD should be i the house so that all components that are outside are protected by it.

There's nothing wrong with that electrically, although what you are doing in the room might be questionable :wink: is your "friend" into growing things?

Thanks for the info. I should have posted that I have access to an all singing Fluke 1653. What about the R1+R2 for 3 phase?

why's that then intrinsicallysafe, is it difficult or do you just think I'm thick?

I'm due to attend a testing and inspection course but would like a bit of prior knowledge. Loop impedance Ze, where exactly is it to be measured? Is it at the earth terminal of a DB? Do I have to disconnect any earth connections to pipework, steel framework etc? So the reading is purely the...

are you sure that the tiny movement is not just the metal tubes moving slightly inside the yellow plastic.

Thats quite some current. I can't think of any single device off hand. What voltage? AC or DC? You might have to use a large contactor with operated by a slave relay and standard push button. If you insist on high current switches, you might find something from a supplier of parts to...

you will get different opinions depending on who you ask. Mine would be to replace the cable. But alternatives would be to remove the damaged cable and move the socket. If you want to crimp, you will need blue through crimps for 2.5mm. Take care not to nick the core when stripping. Use the...

some testers claim not to trip RCDs, haven't tried therm though

If they are low voltage, a transformer must be used. As stated, a spark is produced when an inductor, such as a transformer is turned off. Don't worry about it.

I'm sure we've all tightened a terminal and gone back to it some time later and got another half a turn on it. Crimps are far better.

Why not drop down the wall to a fused switched spur so you can turn it off when you go to bed.

I've never seen or even heard of any that will read current with phase and neutral together.

have a look at RS on line. You might be able to get one that works on 240v. If you have to use a DC one, you will need a DC power supply and a relay that is switched by the proxy. Ypu can then do what you want to with the relay contacts. A word of warning though, capacitive types can be...