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  1. kingeri

    10mA RCD for bathroom circuits

    Been to look at a job this morning for a CU change, customer the type who wants to have his say on every tiny detail. He has already bought the CU as well, a Wylex RCBO unit..... I pointed out that the RCBO ratings he has bought don't align with what I actually need...and that some will need...
  2. kingeri

    Surge protected FCU ...

    So I have been asked to provide surge protection to a group of sockets in a PC area within a house. The sockets (7 doubles) are presently supplied from an FCU off the ring final. An easy solution would be to replace the FCU with one with surge protection built in. Problem is, they don't seem...
  3. kingeri

    Extraneous conductive part as bonding conductor

    Been nosying about at my brother's new house this week and fixing a few bits and bobs. The electrical installation mainly dates back to the early 80's at a guess and apart from a few broken accessories and a lack of RCD protection (now fixed) it has all checked out okay. PME earthing. Today...
  4. kingeri

    Replacing storage heaters with panel heaters

    Got a job coming up replacing 3 old storage heaters with panel heaters. Customer is coming off E7. Had a look today and was expecting the usual 3 x 16A MCBs, but found that all 3 heaters are on a single 6mm^2 circuit. There is an 850W unit, a 2.55kW and a 3.4kW one sitting on a 32A MCB. I have...
  5. kingeri

    Reused shower cable (for heaters)

    I was called out yesterday to a house to have a look at a wall mounted heater in a bedroom that had stopped working. Had a quick look, and noticed that the heater was controlled by a 20A DP switch. No FCU. In the CU, it was on a 32A MCB. Upon further investigation, I found that there were...
  6. kingeri

    Conductors in parallel......

    I was at a job on Friday in a big 4 storey house. One of the jobs I was there to do was to add sockets to a bedroom which actually didn't have any at all. The top floor sockets were on there own breaker, a 32A RCBO actually. There were two 4mm^2 T&Es at the RCBO so I initially thought it was...
  7. kingeri

    100mA RCD on PME system

    I am going to a job this afternoon, new shower circuit. I noticed yesterday that the Wylex CU has a 100mA S-type RCD as the main switch and all the circuits are on 30mA RCBOs. PME system as far as I could tell (certainly not TT). Didn't give it much thought then, but was thinking about it...
  8. kingeri

    Accessible metal back boxes

    Obviously metal back boxes usually cannot be seen or touched because they are in the wall. Been out today to a lady who has two metal backboxes from sockets in her kitchen which are in a wall made of a single layer of wood with a plasterboard on the kitchen side. The backs of the boxes and...
  9. kingeri

    Maximum demand

    So now what's the feeling these days on working out maximum demand for domestics, the OSG method has to go out of the window surely, with more and more division of circuits going on. I have been pondering my latest job, very nice but older installation done by an old electrical engineer...
  10. kingeri

    2.5mm on 32A MCB

    Just wondering what folks would do if you came across this on your travels. 4mm radial sockets circuit, on 32A MCB. Two branches from the CU, one supplying 6 double sockets, wired entirely in 4mm, so fine. The other branch consists of a 1m run of 4mm to a double socket, then around 5m in 2.5mm...
  11. kingeri

    New way to test smoke alarms

    Saw a guy testing smoke alarms by blowing vapour into them from his e-cig today. Don't remember reading about that method in the manufacturer's instructions (or anywhere else). Hmm.
  12. kingeri

    4mm 32a Radial In Trunking

    Changed a CU today and noticed the kitchen sockets were wired in 4mm t&e surface mounted in trunking and on a 32A breaker. Now, the CCC for this is strictly only 30A (ref.method B). Would anyone be overly bothered about this? Common sense tells me that it is unlikely this cable will be asked to...
  13. kingeri

    Ring final with 4mm legs

    So I have been working on a four storey house, in which the wiring is pretty sound, the sparks who did the last rewire (approx 2004) seems to have loved 4mm T+E, all the sockets are on 4mm radials, with either 16, 20 or 32 amp breakers. The exception is the very top floor sockets, which he did...
  14. kingeri

    Wylex NHXB25 ?

    I thought Wylex 25A MCBs weren't available in the NHX range, but I've seen them for sale on a famous auction site and one or two other places, yet the big electrical suppliers don't generally list them. My concern is that they may be counterfeit, I have ended up with fake B20s in the past which...
  15. kingeri

    CU enclosure replacement: repair?

    Customer has cracked the corner of his CU, with a little effort you can get your finger through the crack. I am going to swap the plastic CU chassis, but not in any way alter any of the circuits. I am thinking this is a repair, and hence not notifiable, any thoughts? Also, beyond checking the...
  16. kingeri

    Cables in trunking boxed in with pipes

    Who would do this? Cables for upstairs circuits in trunking going up corner of room then central heating flow and return pipes on top of trunking, then whole lot boxed in. Good idea? Does it matter?
  17. kingeri

    Lighting on end of smokes

    Been asked by a neighbour to change all white accessories for chrome ones and put up new fancy light fittings in their 3-storey house. Whilst doing some quick testing on the (newish) lighting circuits I found the circuit supplying the top floor lights is a bit odd, there are 5 wired interlinked...
  18. kingeri

    Found him

    Glenn has stolen someone's identity and moved abroad. Damn him. https://www.facebook.com/glenn.sparks
  19. kingeri

    6mm Aluminium Tails, DNO says no supply listed at the address

    Evening all. Today I was invited to look at a friend's latest project, a town center workshop-----garage. He is planning on turning it into a furniture shop. He has had a 'handyman' in doing some work for him, including electrics. Apparently there was no fusebox at all and no lighting...
    • kingeri
    • Thread
    • 6mm address aluminium being dno don't friend listed sockets supply tails
    • Replies: 9
    • Forum: UK Electrical Forum
  20. kingeri

    MFT batteries

    Just a quickie. I have been using rechargeable ni-mh AA batteries in my tester for a while, these are starting to fail and am going to have to buy some new ones. Any advice on which ones are the best for use in a MFT? I understand that the ni-mh ones don't suffer from the memory effect, so...
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