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  1. gazdkw82
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    gazdkw82 Trainee Trainee Access

    Location:
    leicester
    Iv got one of the Martindale lock off kits with approved voltage tester and proving unit.

    All is well, however, im not sure how some of the lock off devices are meant to be used and on what type of breaker/isolator.

    Iv also had a few situations where Iv been unable to find an appropriate locking device, mostly when faced with large isolators or mccb's etc

    Is there a definitive list or instructions on such devices?
     
  2. telectrix
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    telectrix Scouser and Proud of It Trusted Advisor

    Top Poster Of Month

    Location:
    cheshire/staffordshire
    Business Name:
    Telectrix
    the ones i use have the spring clips which fit in the small holes in the MCB.
     
  3. MFS Electrical
    Online

    MFS Electrical Trusted Advisor

    Location:
    Scotland, Inverclyde, Greenock
    Business Name:
    MFS Electrical
    I doubt there is specific instructions but usually the manufacturers of switch gear have own brand or approved lock offs that will fit their equipment all it could take is a call to their customer services to find out.
    Personally I don’t like the martindale test lamps if they still have the spring loaded test probes for me a bit of doubt remains that the probe is actually making contact with the terminal and has nearly caused some problems for me in the past so I chucked them and now have fixed removable shrouds that work much better for me. I do like the martindale proving unit though one has been knocking around in my van for close to 10yrs now :thumbsup:
     
  4. Rpa07
    Offline

    Rpa07 3000 posts - only 50554 behind Telectrix! Electrician's Arms

    Location:
    Bristol
    Business Name:
    Ebenezer electrical
    The Martindale probes can be permanently exposed by pulling back and trusting 1/4 turn. Took me 3 months to work that out then it totally changed them. Any 2mm exposed probe end is very untrustworthy and usually gets a haircut back to what is workable - always keeping an original set for assessments!
     
    • Like Like x 1
  5. gazdkw82
    Offline

    gazdkw82 Trainee Trainee Access

    Location:
    leicester
    So what's the big red lock for? It's huge. There's also a blue one that I've never seen a use for.

    I've had to purchase some specific Schneider ones so I'm aware manafacturers have their own locking kits.

    Usually I'm faced with isolators/switch gear that was installed before the arc so doubt there is a specific lock from manafacturers
     
  6. buzzlightyear
    Offline

    buzzlightyear still kicking sand, before pushing up daisies . Electrician's Arms

    Location:
    star command
    to stop F**KING d88K HEAD TURNING IT ON .
     
    • Like Like x 1
  7. buzzlightyear
    Offline

    buzzlightyear still kicking sand, before pushing up daisies . Electrician's Arms

    Location:
    star command
    I don't use a lock off kit .I get my guard dog to watch any person getting near the isolator .
     
  8. spinlondon
    Offline

    spinlondon Trusted Advisor

    Location:
    Harlow Essex
    If the big red lock you are referring to is plastic and made by MK, then it’s for bathroom fan isolators.
    Most MCBs can be locked off with the G clamp style.
     
    • Like Like x 1
  9. gazdkw82
    Offline

    gazdkw82 Trainee Trainee Access

    Location:
    leicester
    You sir, get top marks.
     
  10. gazdkw82
    Offline

    gazdkw82 Trainee Trainee Access

    Location:
    leicester
    Perfect. Useful info.

    At the moment it feels like guess work to find a lock to fit on different equipment
     
  11. Andy78
    Online

    Andy78 Trusted Advisor

    Location:
    Kingston upon Hull
    Looking at the kit you have it seems the majority of the locks work in the same way, as clamps onto the CB lever when switched off.

     
    • Like Like x 1
  12. sparkdog
    Offline

    sparkdog sparkdog Electrician's Arms

    Location:
    Sunny Sussex
    Business Name:
    C MacRae Electrical
    L like those Dave Austin videos, He's really good.
     
  13. Rpa07
    Offline

    Rpa07 3000 posts - only 50554 behind Telectrix! Electrician's Arms

    Location:
    Bristol
    Business Name:
    Ebenezer electrical
    Don’t encourage him - his visa is up soon and he has to return to Alpha Centauri via Waitrose for a snack (it’s a long trip)!
     
  14. MFS Electrical
    Online

    MFS Electrical Trusted Advisor

    Location:
    Scotland, Inverclyde, Greenock
    Business Name:
    MFS Electrical
    I do vaguely remember that but decided I still didn’t like them and flung them in the bin :tearsofjoy:
     
    • Like Like x 1
  15. SWD
    Offline

    SWD Gender neutral Electrician's Arms

    Location:
    London
    No rubber grommets in the back box.......
     
    • Like Like x 1
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