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Electrical Question. Consumer Unit.

Zoomup
Evenin' All,

                       it was fun getting to work today. Firstly, I had left my van's windows open about 5mm at the top to reduce condensation buildup. A Big mistake. The dusty fine snow had found a way in and covered the driver's seat and the steering column and some parts of the dashboard. Joy and bliss I said.


Anyway now to the question. Sparky Sid was installing a new Niglon R.C.B.O. populated consumer unit. It has a main D.P. switch and six R.C.B.O.s.


He always uses one  short length of P.V.C. earth sleeving when assembling these types of consumer units.


Why?


Z.
  • 0
    ... made me smile Z.  It doesnt have to be green and yellow - that was a red herring - (or a brown one in new colours).

  • 0
    A good pointer for those occasions when you tighten up and nothing happens, which has happened to me more than once,  though  you Sid could use a bit of copper wire for that, or buy or build a demagnetiser for your Sid's drivers.

    I do have a set of dentists proddling sticks and a mirror on a stick, which are utterly unsuited to live work but have proved very handy for setting up tilted terminal screws down tunnels, and looking under bus bars and so on for that sort of thing, and reading serial nos round corners

    Mike

  • 0
    You can get insulated dentists mirrors, e.g. this from RS
  • 0
    wallywombat:

    You can get insulated dentists mirrors, e.g. this from RS


    Yes, I have one in my electrical tool bag just for that purpose.


  • 0
    mapj1:

    A good pointer for those occasions when you tighten up and nothing happens, which has happened to me more than once,  though  you Sid could use a bit of copper wire for that, or buy or build a demagnetiser for your Sid's drivers.

    I do have a set of dentists proddling sticks and a mirror on a stick, which are utterly unsuited to live work but have proved very handy for setting up tilted terminal screws down tunnels, and looking under bus bars and so on for that sort of thing, and reading serial nos round corners

    Mike

     


    Sid likes his magnetic tip screwdrivers Mike. They hold screws when fixing fiddly stuff, and can be used to demagnetise the tape at interviews when he has had his collar felt.  I like ladies handbag mirrors because they are large enough to get a full view of the hidden bus-bar fixings.


    Z.


  • 0
    wallywombat:

    You can get insulated dentists mirrors, e.g. this from RS


    What is an insulated dentist?


    Z.


  • 0
    perhaps like a ordinary dentist, but he stands on an upturned  plastic beer crate?


    Years ago I was involved in a scheme to make heart monitors and other medical sensing  kit  work better along side an electric scalpel - not this exact model, shown cutting meat, not a patient in this video  and actually the whole tool set for working on a semi-live patient (electrically live- , they should also be fully live in other sense as well ) has to be modified so that there are not shock hazards and equipment malfunctions in strange places, so they probably do make insulated kit for patient use as well. I understand it has all by and large been solved now, but at the time it was very interesting, though not totally compatible with my being squeamish. Just the problems of diverted current again but in another medium.

    Mike.
  • 0
    The Boddingtons mirror is very good but not cheapest. The better manufacturers aren’t a problem as they tend not to be such a loose fit.
  • 0
    I have a Boddingtons 1000V dentist type mirror in bright orange. I did take it in and show my dentist who was amused by the size and colour of the mirror.
  • 0
    So, how do you hold your screwdriver and bus-bar and dentist's mirror at the same time at the time of installation? Perhaps in the mouth?


    Z.

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