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    TT Eathing system to be installed

    Snap! Unfortunately, after a lot of work by us both, I see that @Garyburger has another thread running on the same subject. Wasted my time.
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    TT Eathing system to be installed

    Complicated, probably not. Cost, impossible to calculate remotely. You need a registered electrician who is experienced in TT systems. NOTE that changing from the current supply type to TT will have implications on the installations in the 6 flats and common area. We’re recent EICRs...
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    10/3 120ft. Black and red On 1 breaker to keep amps up. What is the max breaker for that?

    If you double the current on one side of the circuit you MUST double the other side as well. If you don’t increase the neutral then it will melt when the increased (double) load goes through it. Not sure why you need to increase your cable size. Is it a bigger load, or is it to reduce volt...
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    10/3 120ft. Black and red On 1 breaker to keep amps up. What is the max breaker for that?

    Ok, but don’t forget that if you double the conductors to the breaker (to allow for larger current?) Then you have to double the conductors on the neutral as well. The current on the neutral will be the same as on the live.
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    UK How to ascertain amperage from cable thickness?

    Again, it isn’t easy. Take the example of a supply cable that has an earthed outer and two internal conductors (L&N). Typically used on TN-S supplies. The outer of the cable may be further wrapped perhaps with fabric, perhaps with all sorts of other covering (plastic, pitch, all sorts). The...
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    UK How to ascertain amperage from cable thickness?

    Cable size may not be the only consideration, other loads on the phase may limit the max current available. Also, if you have a linked supply you will not be permitted to add more large load (eg EV charging) without the supply cabling being upgraded. Also there are several types of cable, some...
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    Cable distance from boiler flue internal duct?

    No distances are specified, only that the installation must be environmentally suitable. So if the area is going to get HOT then you need to apply the relavent allowances when you do your cable calculations.
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    Series E MCB Compatibility

    Vyknier also the same product.
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    40 amp MCB live when off? Faulty?

    Remove the MCB and fit a Hager blank. https://www.edwardes.co.uk/products/hager-jk01b-single-module-blank?gclid=CjwKCAiAsYyRBhACEiwAkJFKopEHGj4P4NcyekaDHJvuqAYhr14-vSypAam_ttiavkGS8OED46al2RoCjToQAvD_BwE
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    Trying to install TCP wifi switch.

    It’s quite crowded but it is possible to get two conductors in to one terminal on the N block.
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    Bundy makes the Rolls Royce of temp site boards ...

    It’s a job for the new apprentice.
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    Merry Christmas from ElectriciansForums.net - 2021

    Merry Christmas everyone, and wishing everyone a healthy, happy, and virus free 2022. A special thanks to Dan, Lou and the EF team.
  13. T

    Dimmer switch ring removal tool

    I have bought grid plate dimmer switches that come with a ring tool for that job. Lord knows where I’ve put them though! Edit. Varilight sell a dimmer plate that includes the tool! CLICK BAIT
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    weather proof consumer unit

    The meter cupboard was probably installed and supplied by the builder. Unless the back box actually is labelled something like “Board’s equipment only” then I’d go ahead and put your protection unit in the the meter cupboard. The whole of the UK is going to have to face this issue in the coming...
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    SWA Cable - Identification

    How many cores in your cable.
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    Any hacks for separating dust from clips and screws etc.

    Apprentice, that'll stop him/her looking at their phone all day!
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    What would you code this as.

    The 40A is thd maximum current that the RCD contacts have been tested to handle reliably. If you put 50amps through it then the contacts could burn out or (worse) weld together. Then the supply will not cut should an earth fault trips the RCD. The circuit needs current limiting at the source...
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    What would you code this as.

    And cable not supported, nor properly glanded, armour not earthed. Single insulated conductors not in an enclosure… So many sins in one photo. Love to see the other end of the SWA.

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