ericmark's latest activity

  • ericmark
    ericmark replied to the thread Earth question - Shaver socket.
    I would think there are many more times when the supply has tripped before anyone has had a shock than tripping while someone is getting...
  • ericmark
    If the hole already exists as 20 mm, I use a cone cutter.
  • ericmark
    I was rather disappointed with the lithium jump start pack. It said how it could be damaged if cranked for too long etc. And I don't...
  • ericmark
    ericmark replied to the thread RCD trip.
    No, one RCD would trip the other, can't run RCD's in parallel. Any extension lead would require someone manually to swap over the...
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  • ericmark
    ericmark replied to the thread Hive stat.
    There are two types of thermostat/programmer wiring wise, those with volt free contacts, and those where the contacts are connected to...
    • Thermostat back plate.jpg
  • ericmark
    ericmark replied to the thread RCD trip.
    There was a RCD with a built-in warning light to say when near the tripping limit, think it was called the X-pole, but google seems to...
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    • RCD tester ramp.jpg
    • Diffrence line neutral 8 Feb 24 reduced.jpg
  • ericmark
    Bosch do seem to copy and paste parts of their instructions, asking for things like Type A RCD protection on the supply. But also if you...
  • ericmark
    I like the idea of being able to simply unplug the central heating boiler in the event of a power cut, and plugging it into some other...
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  • ericmark
    Looking at this, 9 and 10 seem to be from the thermostats. I would think you can trace the 2 black wires and see what else is from the...
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  • ericmark
    If we look at the universal backplate with the likes of Hive and Drayton Wiser there are three options, with a combi-boiler the two...
    • Thermostat back plate.jpg
  • ericmark
    36 volts, 12 watts, and lamps could be in 125 groups of 8 with a resistor which would be 12 watt so fixed voltage, or 150 groups of 10...
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  • ericmark
    1) Location, Wales likely need to register the work, England no longer required I think. 2) Unless using a 10 mA RCD socket then...
  • ericmark
    Only DIY people can really answer, as an electrician I see no problem. I suspect there is a junction box somewhere, this is common...
  • ericmark
    When this thread was started, I had no knowledge of electronic TRV heads, but things have moved on. I had all my TRV's changed when I...
    • 4 TRVs-1.jpg
  • ericmark
    ericmark replied to the thread Outside lights..
    I have had a RCD trip, and tested OK, but changed anyway and no more problems, so now I do that early on, as the RCD tester does not...
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