rcd's

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  1. P

    French wiring book showing Type AC 40a breaker with N and L wired opposite

    Hi all. I've just had my house in France upgraded to single phase. I've bought a consumer unit as i only want a basic set up (minimal electric is used in my house!) and am going to put it in myself. I have a book which teaches you how to wire up. The consumer unit comes pre-packed with one...
  2. G

    RCD's and large capacitive loads

    Hi all, just registered today and sorry to come straight in with a request for help. I wasn't sure if this would be best in the commercial forum or the domestic one as really it is using comercial type equipment on a domestic ring main. I have 2 large battery charger/inverters in use at my...
  3. H

    2 Rcd's?

    I'm thinking of having a new fuseboard fitted. The existing one has 8 fuse in it and is boxed in. The 2 electricians who have come to quotesay i need a board with A main switch 2 Rcds and 8 circuit breakers. the board will not fit in the boxing. My friend has a board with 1Rcd and eight circuit...
    • HorridToe
    • Thread
    • breakers circuit rcbo's rcd's
    • Replies: 9
    • Forum: UK Electrical Forum
  4. Doomed

    RCD's and portable arc welders

    Replacing ring main in metal working workshop. They frequently have 2 portable arc welders on the go. The sockets are all now supposed to have RCD protection, but will the arc welders trip them out? Asking as had a problem potentially like this in a professional photography studio where several...
  5. D

    All three RCD's tripped

    Good evening every body. Im new here so hello to one and all I have a question. I plugged my new 1710 Megger into a TSO in a garage with a two way board on a 30ma RCD. I did an RCD check and my X1 took the RCD out in the garage and the board in the workshop and the main house one too.. I...
  6. H

    EICR- Are Rcd's necessary ?

    Hi all, I have been asked to carry out repair works in a house which has had a condition report completed by another electrician. One of the main problems they have outline is that the "entire property is not protected by RCD's - C2" The D.B is an old wylex board with rewirable fuse's so...
  7. C

    RCD's in office

    Hi. I have been asked to change a DB in an office that is going to be used as a call centre. The original wiring (which isn't being altered) is T+E in partition walls. With amendment 3 coming in and the removal of "under the supervision of skilled and instructed persons", would I be right in...
  8. V

    Rcd's that fail to operate in less than 40 m/s

    Hi All Ok...after many years of testing rcd trip times...having some failed or faulty rcd's....we are starting to come across perfectly good rcds / rcbo's . .from various makes....that wont trip at all..or wont trip in under 40 m/s. about a year ago...in a domestic property..we fitted a new...
  9. R

    Loop tests and RCD's

    Had an old Fluke for years, which has incidentally been faultless . Company purchased a Megger last year however when doing Internal earth fault loop impedance readings are far higher than expected. I.e..example Ze = 0.20ohms r1 + r2 = 0.15ohms Zs should be about 0.35ohms however coming...
    • Richard
    • Thread
    • circuit current fluke loop rcd rcd's result tests
    • Replies: 5
    • Forum: UK Electrical Forum
  10. driverman

    2 x RCD's tripping

    Hi guys, tried searching,whereby explanations have been given as to why a RCD will trip by a fault on a circuit that ISN'T electrically protected by the RCD tripping. Typically crossed neutrals or borrowed neutrals. I'm not into testing. Company I work for been called out to an EV bollard with 2...
  11. M

    Rcd query.........??

    Hi Guys, does anybody know what the fundemental difference is between a type 1 rcd in relation to a normal domestic type to bs 61008. These have been mentioned for supplies to electric vehicle chargers....? Many thanks in advance ))
    • mickytuff
    • Thread
    • circuits fault feeding query rcd rcd's
    • Replies: 3
    • Forum: UK Electrical Forum
  12. C

    Settle when rcd's are required on sockets please

    Settle when rcd's / rcbos are required on sockets please I believe the way the regs are now written that they are required on all circuits unless they are risked out even in an industrial situation. I am told this is not the case in an industrial situation as they are completely installed in...
    • cobrauk
    • Thread
    • please rcd rcd's required socket sockets
    • Replies: 25
    • Forum: UK Electrical Forum
  13. Leesparkykent

    self made solution for testing for earth leakage on RCD's

    Can't work out if this is utter sh** or pretty good if you didn't possess a earth leakage clamp meter. Diagnosing RCD earth leakage breaker nuisance trips | eBay
  14. dlt27

    High zs on RCD's.

    Hi all. I carried out an EICR yesterday. It was a BG split load consumer unit and when testing I noticed the zs values were coming out high. I noticed on the 1 rcd there was 0.50 Ohms difference between feed and load side of rcd and on rcd 2 there was 0.60 Ohms difference. Just wondered if...
  15. S

    RCD's Misbehaving

    Hi, I have a problem with 17t edition consumer unit (MK Sentry) on a TT system that has completely left me baffled. I'd be very grateful for an advice. On the left hand side of the board I have a 100 amp main switch. Immediately next to that a 30ma RCD controlling 3 MCB's and 2 spare ways...
    • Sparkz123
    • Thread
    • circuits operate rcd rcd's switch
    • Replies: 18
    • Forum: UK Electrical Forum
  16. C

    Newly installed Consumer Unit is tripping RCD's when hoover or kettle on

    Hi all, I'm new here so bear with novice questions pls. I have renewed an old CU (the one with pull out fuses) to a very new one with 2 rcd's and 10 MCB's. the old one had the kitchen sockets and the 1st floor sockets on the same ring (weirdly). Layout is this: RCD1 63A with: 1 x 40A MCB for...
  17. R

    Condition report for the old installations

    I have to do a Condition Report for an old installation. Everything is ok but the installation doesn't have RCD's, even for those circuits required by the 17th Edition. Can I write that the installation is "satisfactory" without RCD's ?
  18. D

    Bathroom RCD's

    Installing a fan for a bathroom the other day resulted in an interesting discussion with the client,who is a now frail but mentally intact long retired sparky. I had fitted an RCD FCU at the DB to the associated lighting circuit to cover the only bathroom circuit,as there were no RCDs present or...
    • Deleted member 9648
    • Thread
    • bathroom circuit location rcd rcd's
    • Replies: 18
    • Forum: UK Electrical Forum
  19. T

    Some theory about cable sizing, electrical circuits, RCD's, switchgears etc.

    Hi guys, As I post in the head of the topic I am loking for some theory about the above things.I was looked here in this chapter but I can not find nothing.So if somebody of you have some materials about that I will be very thankful to send it to me.Or paste some links here.I prefer somthing for...
  20. Sparky_Steve

    red tab in crabtree starbreaker busbar

    I have a metal clad crabtree starbreaker board which i'm planning on using rcbos with how do you remove the red tab?

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