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    ZS testing - dangerous?

    I have read somewhere that performing a zs test where there is exposed metalwork and people around can be dangerous? Is it something that has to be avoided? Or does it say anywhere that it must not be done? Should i be worried about carrying out Zs tests now? :/
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    R2 test without removing cover

    Hi all when performing an r2 test prior to commencing an EFLI test would it be acceptable if the board was made from metal of course to test from the point to the outside of the board rather than to the earth bar? Just for when you are working with large 3phase boards full of cables.
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    Pat testing - low insulation reading

    Hi all, recently pat tested abit of equipment, it contains 24v power supplies, a frequency inverter, relays and a motor, its on a 13amp plug so requires pat test, however we get a low LN to E reading unless we disconnect the inverter. Reading is 0.9Mohms, is this normal or should you still...
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    Ip rating top of consumer unit

    Hi all, if you have a consumer unit with holes in the top bigger than 1mm but it is butted up against the ceiling is this acceptable? as it is not readily accessible? but technically would be if you lifted upstairs floorboards?
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    Extraneous conductive part test

    Hi all, im aware of the test needed to be done when trying to find out if a metallic object is an extraneous conductive part but for example, if you had a copper water supply system in a house that is fed with a plastic incomer pipe out the ground you will always receive a low resistance reading...
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    Minor works - Zdb & R1R2 tests

    Hi all, when completing a minor works there are two tests that i am unsure the best way to go about, example extension of circuit and new lighting point installed. Fed from industrial 3P board unable to isolate due to plant running. Do not wish to open live board even just for testing purposes...
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    Completing electrical certificates

    Hi all, question on testing and completing certificates inside a large factory in maintenance, a lot of the 3P boards here are full of cables, when we are adding to existing circuits, it would be required to perform the necessary tests, R1 R2 and Zs for instance inside the boards, how do we go...
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    Filling out an EIC when multiple people have worked on a circuit.

    Hi quick question, we are a maintenance team in a factory, sometimes we have jobs that carry on to the next shifts, sometimes up to 3 people could be working on a job at different times, how do you go about filling out a certificate, should you just list all the installers and signitures on a...
    • tomodo
    • Thread
    • certificate circuit eic filling multiple mwc out people when worked
    • Replies: 3
    • Forum: UK Electrical Forum
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    Maxi trunking running around consumer unit

    Hi all, recently seen a wylex consumer unit install video, they use bush and couplings to connect to the pvc trunking running horizontal on the top on the consumer unit, is this necessary? They also show another option using strain relief grommets (inside the trunking going into the CU) How...
    • tomodo
    • Thread
    • around consumer consumer unit ip rating running trunking unit
    • Replies: 2
    • Forum: UK Electrical Forum
  10. T

    Minor works certificate - Ze Test

    Hi on the minor works certificate it asks for Ze, so any time i install an addition to a circuit lets say, i then have to isolate the whole system disconnect the main earth and test each time? Is there anything that permits the test be completed without having to disconnect main earth? Thanks
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    SY cable - earthing the braiding

    Hi all, we have a situation where we have a 3 phase bit of equipment thats on a 32amp commando plug 3 phase. Its wired up in sy cable and using an sy gland the braiding is earthed on the load side. There is no room in the plug (supply side) to get both the braiding pigtailed up and the conductor...
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    Safe isolation of rotary isolator when no incoming voltage present.

    Hi all, trying to work out the best way for proving safe isolation of a motor. Motor is fed from a contactor inside control panel, it then passes through a local isolator and then to the motor, the isolator has auxillary contacts so that when it is in the off position the contactor will not...
    • tomodo
    • Thread
    • incoming isolation isolator present rotary rotary isolator safe voltage when
    • Replies: 21
    • Forum: UK Electrical Forum
  13. T

    Electrical certificate with multiple installers

    Hi all, how do you go about filling out a EIC or a minor works certificate when you have multiple installers that have worked on the circuit, there is only one space for installer/constructor?
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    New meter tails running in 2 core 25mm swa and 16mm single earth

    Hi everyone, i might be having to run new meter tails from meter box to consumer unit which is just under 3m run, i have used 25mm 3 core before and its hard to work with especially through joists. I was thinking about 2 core 25mm swa and a seperate 16mm earth to make life easier but then came...
    • tomodo
    • Thread
    • 2 core 25mm core earth meter meter tails new running single swa tails
    • Replies: 6
    • Forum: UK Electrical Forum
  15. T

    Cheapest way to sign off work?!

    Hi all, im a fully qualified electrician but have a full time maintenance job, i normally have one or two jobs to do for myself or family, usually notifiable work, currently signed on with napit. Im having to pay around 800 a year to keep it all going, seems silly when im only filling out a...
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    32 amp cooker switch on ring main?

    Hi everyone, so ive got a new oven to install this one is rated at 16 amps, old one was 13 amps on a plug and socket to ring main. My question is can i install a 32amp double pole switch on the ring main then feed 4mm flex to the oven? Is there anything in the regs that prevents this? Thanks for...
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    Ring main r1+r2 reading really low - 0.01?

    hi guys just wired up a new ring main for a house, confused on the test results though, firstly all other ring mains in the house that are new are okay and have came out as expected, tester has just been calibrated and batterys are okay and the ring main is a true ring... am using a metrel...
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    Cool white and warm white in same room? Yey or Neh??

    Hi guys simple question - designing the lighting for my kitchen diner extension which will have a sofa area, dining table area and kitchen bar area... now I wanted to have warm white lights in the sofa, dining and outside areas and then cool white in the kitchen area and under cabinets. Do...
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    Filling out a minor works N-E Fault

    Hi so whats the best way to go about this? Added 3 lighting points to an existing lighting circuit, the fuseboards old with no rcd. Upon completion of testing , all tests okay apart from N-E on insulation test. My additional wiring tests okay on everything but the existing circuit contains...
    • tomodo
    • Thread
    • additional circuit fault filling lighting minor out tests wiring works
    • Replies: 13
    • Forum: UK Electrical Forum
  20. T

    Fillng Out EIC

    Hi not filled out many certificates , just done a job wiring up a shed ( 2 lights off a fused spur and a socket)came off a socket radial circuit from the garage which is supplied from a small RCD 3 way board, I've put this down as an addition to an existing circuit? And also couldn't disconnect...
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