circuits

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  1. T

    Cooker hood trips other circuits on fuse board: what's going on?

    Hi, I am a newbie to this site, not an electrician but looking or advice. Please excuse any incorrect electrical language: I'll do my best to describe our strange electrical problem. Sometimes when we are cooking, the fuses for downstairs & upstairs sockets (2 circuits) trip. It's when we use...
    • Tom Oxford
    • Thread
    • board circuits cooker fuse fuse board going other tripping trips what's
    • Replies: 68
    • Forum: The Welcome Forum
  2. T

    Keith Brown Electrical Service (KB Home Services)

    All domestic electrical installation undertaken. Complete and part rewires New Circuits, alteration and additions to existing circuits. Outside equipment installed, sockets, lights and power to ponds, gardens and outhouses. Installation of domestic appliances (cookers, ovens, hobs, heaters...
  3. G

    Surge Protection Device question

    I am busy doing some work with a local contractor to get some up to date hands on experience. whilst doing a EICR today i come across a CU with SPD in. The property is a recently built 5th floor flat about to be let on a new tenancy and meets the criteria for requiring a SPD. The whole set up is...
  4. S

    TT System 100ma S Type Housing

    Hi, Got a Domestic TT system which needs a new 100ma S Type RCD. What are your thoughts on this being placed in an Insulated or metal enclosure? It is not in an external meter cupboard so falls under 421.1.201 (within domestic). Thanks,
  5. bigspark17

    2x supplies down swa

    does having two circuits travelling down one swa directly condradict a reg.? Circuits in question are 2 63A submain down 1x 4c 16mm swa
  6. D

    high Zs readings

    Did an EICR in a domestic property, earthing arrangement was a TN-S with a Ze of 0.51 ohms. There are 2 ring final circuits protected by 32amp 60898 type B mcbs. Both circuits have additional protection from a 30mA RCD. My Zs readings for the circuits are 1.63 ohms and 1.89 ohms. My question...
    • Dave the spark
    • Thread
    • circuits earth high zs reading readings
    • Replies: 16
    • Forum: UK Electrical Forum
  7. telectrix

    code query

    just done a EICR. good installation, approx. 10 years old. 16th ed.split board, lighting circuits non-RCD, on TT earthing. my query is this: the Zs readings are high, due to the high Ze, insofar as , e.g. lighting circuits on 6A MCB each have a Zs higher than the max. permissible . should I...
  8. buzzlightyear

    16mm twin &earth sub mains separate earth

    been to look at a job , customer needs sub mains and meter moving to the under stairs from main cut out from hallway a new 100 amp cu . 16mm twin earth do I need separate cpc for that according to table 54.7 16 mm cpc any thoughts on this .
  9. J

    2.5mm ring ref method 100

    Afternoon men (already bored of the football!) for radials circuits that are to be installed as 100,101,102,103-table F6 is your friend! but when it comes to ring circuits wired in 2x 2.5mm on a 32amp it always confused me a little! -I know that 20amps per leg is the magic number- so the...
  10. N

    Extending C/U circuits

    I appreciate this is a common situation when replacing a C/U and providng the C/U is not on display as such I have usually just added a junction box in the past to extend the circuit. Where there is sufficent space to extend a circuit inside a C/U I can't see any problem with using a wago...
    • Nicebloke
    • Thread
    • circuit circuits extend extending inside usually
    • Replies: 7
    • Forum: UK Electrical Forum

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