testing

Can this be done without using a resistor (on the DC low volt scale) say by the amp setting or other? Thanks.

I am in the UK where when new circuits are commissioned, a number of tests are done to ensure the safety of the circuit. Such tests consist of (but not limited to) insulation resistance tests, loop impedance tests, RCD/ELCB characteristics tests, etc... How does that compare to the sort of...

I think I need to order some test keys for our fire alarm call points. These are from a company called Protec. The test key seems to fit in the small slot on the bottom, but we don't have any. Does anyone know where I can buy a suitable key please? (I've emailed the supplier, but I haven't had...

OK, so I'm probably as daft as a brush (hence the username), but... I have a socket tester (TackLife from Amazon) that has 3 lights to give various readings for sockets, i.e. 'correct', 'open ground', etc. Now for 'Open Hot (Live)' the light combination is er - no lights. Doesn't this seem to...

Hello folks, I’d like to do some non-notifiable minor electrical works on my home as part of some building work we’re having done and I want it done properly recorded on MWC. I want to DIY it. I want to be able to stand by my work and produce documentation if it’s ever required (selling house...

Originally we had a back boiler which has been ripped out and a wood burning stove installed in its place. The system was full of black sludge. I have, Replaced all of the radiators with new including TRVs. Flushed out the copper pipes of the system prior to the connection of the new rads. The...

Hi, I'm trying to understand a fault displayed, and I'm hoping somebody might be able to help explain. Recently purchased first home, and decided to use a socket tester to do a quick check of all sockets. I know there are limitations of socket testers (though don't claim to properly understand...

Just to let you know I have just bought a Megger MFT 1730 for £575 that includes a years calibration from ebay. Here is the eBay listing...

Hello, We recently bought a house, which we mostly gutted/demolished and rebuilt. I am NOT an electrician, but i have spent several years working as a labourer alongside domestic electricians and being shown what to do by these electricians. I also have an electricians manual with wiring...

Hello, this is my first time here, my background in electronics is not that deep, I'm trying to replace the intercom from my apartment. I had one Brand : Genway, I wasn't able to get it lower than 80 $, so I decided to try a generic one, I bought one from Amazon, Brand: UXcell, both circuit...

I hope it is only MY logic that is failing... ...and that YOU can figure it out! This happens to be in Cyprus, but it could just as well be the UK or elsewhere. Immersion heater (IH) connected to Neutral-Earth fault. I installed a new one (Backer 314C, 3kW), ran for an hour then RCD tripped...