Electrics UK | Forum profile

It sounds like they used the cable-saving method, Cannot say if its dangerous unless we can see it! It should be OK if all conductors are properly terminated. Post a picture on here so we can have a look!. That will also give you a record in case you get mixed up when you are re-doing the new one. __________________ TTC When you get to the end of your rope, tie a knot ...

are those mcbs or rcbos? any of those breakers have a test button incorporated or 30 mA printed on them? main earth could use a bit of attention too.

just got my domestic electrical periodic report back from the electrician for a rented proberty it last was done 4 years ago by the local authority and was OK now it as 11 faults and the summary of the inspection says unsatisfactory,,, 3 of the faults are high lighted as urgent 1 mains earth in 6mm 2 no rcd protection on sockets or cooker panel (likelihood of out side use) 3 no ...

For some reason, it would appear the main earth to your house has become live. As you're TT, RCD protection should be provided across all circuits due to the poor earth impedance (in comparison to TN-S or TNC-S) provided by the earth electrode, which under a L-E would not allow sufficient current to flow to trip an overcurrent protective device such as a fuse or MCB. Either your RCD isn't...

An electrician? What is written on the rating plate? __________________ Matthew "I told you, I only wrote that poem to test my printer!"

sounds like a duff meter. the transformer rating is printed or stamped on the transformer.

Depends on what it is for and on the existing condition of the installation. __________________ Earthing limits duration of touch voltages, bonding limits the value of touch voltages

Alert Moderators

Negative head pumps require a pressure vessel, so I don't think a standard pump can be converted to negative head. I had to change mine. An example of a negative head pump with vessel:- __________________ Please note compliance for Part P, LABC and 17 Edition.

But not at the outgoing terminals of each MCB....

were, were a qualified electrician - now your just dangerous.

I have been reading through Section 7 of Guidance Note 3, which roughly corresponds to Section 612 in BS 7671. I was trying to make some sense of the tests to see how logical it was. What I don't seem to be able to find, is any case of a measurement of continuity of a neutral in a radial circuit. The resistance of all three conductors is measured in the case of a ring final ...

Alert Moderators

Alert Moderators

sounds like a duff meter. the transformer rating is printed or stamped on the transformer.

Hi there, basically the shed out our back garden was wired by someone else about 6-7 years ago and now for some reason keeps tripping the ELCB, I checked the wiring in the sockets, spur and light and it all seems grand, the SWA coming in also seems grand, the only things plugged in are the freezer and the dryer but the dryer is only plugged in when its been used, I plugged the freezer out last ...

Wiring run for two linked mains powered smoke detectors goes like this: Consumer unit -(T&E)- detector 1 -(3 core & earth)- 20A 4 terminal junction box -(3 core & earth)- detector 2 My question is is there any regulation that prohibits the use of a junction box in a linked smoke detector circuit?

You would have to go down the dual box route and have two separate FCU's. If these are supplied from a spur off a ring final then be aware that you can only have one spur from any one point off a ring final but I don't see a problem with this arrangement as the maximum load you could consume on the spur is 2 x 13A (26A total) which is the same as a double socket outlet.

i am intending to install a new mini consumer unit in my loft as i am making it a habitable place! (Office with a number of pc's, security equipment etc, higher useage than a normal home office!) It will be feeding sockets around 7 doubles and 4 lights. I have a single 6mm redundant t/e coming to outside the bathroom that i have easy access to, so my first question is am i ok to use...

... Last edited by kingofhearts on Thu Nov 19, 2009 9:53 pm, edited 1 time in total