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Hi, hopefully someone can offer some advice. Im about to move into a house where there is currently an alarm system installed. The main alarm control panel is positioned in the kitchen above the cupboards. The kitchen is on the rear of the property which is probably most vulnerable to being...

Came across some twin and earth that ive not seen before guys and was after some advice on whether its ok. Its a TNCS supply with the tails coming from the meter into an old 60A switchfuse. From the sswitchfuse runs a twin and earth cable for about 20 metres to the Cu on the other side of the...

have used an adaptable box to terminate some cables using some din rail and stud terminals. do i have to make a cover for inside the enclosure to cover the terminals? or is the adaptable box cover enough? am sure ive seen a reg regarding this but cant for the life of me remember.

whats the difference between the 3 colours of minor works & EIC certs? and who should use what? cheers

hi guys, after a bit of advice and opinions of the best course of action to take. not really a DIY question but there are some good sparks on here who may be able to help. sorry if the post gets a bit long but here goes...... got an installation (factory) with a 3 phase supply (400A)...

not strictly a DIY question but it follows a debate we were having at work today.... whats people's opinions and experiences of the danger that could arise from these tests, i.e voltages/current appearing on earthed parts. whats the worst that could happen? is it safe to do so long as you...

not exactly DIY but someone on here may know. come across some old circuit breakers/circuits. the breakers have no BS number and are by an american firm, fed electric. when checking efli compliance of these circuits where do you get values from as bs7671 does 60898 mcb's only. do you treat...

looking to change some light switches for dimmers but not sure if it can be done. current setup is light A is switched by 2 switches in diffent corners of the room. one of the switches also has a switch controlling another light (B). can i swap one of the switches for light A for a dimmer...

hi, couple of questions i have regarding a PIR our firm had done if anyone would be so kind, 1, the Inspector has the IR tests all as above 200M ohm, thats about 300 circuits and not one below 200 (in a 30 year old factory). also he's only done phase-earth (has others as LIM) tests but i no...

just in the process of having a new CU in the house and also some new circuits. the work is been done by contracters on behalf of the council i believe. should i get an electrical installation certificate. asked the guy who's doing it and he avoided the question a bit. is it actually a reg...

hi, i know this is a bit general but my fridge has stopped getting cold. i dont really know anyone who knows anything about them. can anybody suggest a reason why its not getting cold anymore. does it sound like a common problem? thanks

im an apprentice electrician and was doing some loop testing and some fault current testing yesterday. when doing this testing where my probes were on the circuit there was a crack/pop noise at the end of the test(just before i got the reading). the electrician didnt know what it was when...

in regards to the 2391 practical..... 1, for the external earth fault loop impedance, do you disconnect the earth coming into the 3 phase db from the main earth terminal? have heard conflicting methods of this, some saying yes because of the pp's and some saying no because its a test...

hi, got a question about my upcoming 2391 practical. one of the tests is an earth fault loop impedance test where you have a socket mounted on a block off wood( to plug your tester in) along with 3 switches. the socket plugs into a 230v socket(via a flex cable and 3 pin plug) to get...

hi on the 2391 practical when doind the first test, continuity of circuit protective conductors can i take out the phase conductor for the circuit under test and put it into the earth bar thus getting the R1+R2 aswell to save time? main question though is do i have to disconnect any other...

got my 2391 practical next week guys and got some queries on a few things? 1, in the assesment is it acseptable to measure the R2 values to the (earthed) screws on the switches instead of taking the fronts off? this is assuming you dont have to do the R1+R2 measurment (which our tutor told us...