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  1. ericmark

    Plug in solar, what do you think?

    I could not supply whole house from a 5 kW generator as some items (the shower for example) use more than 5 kW so grid tie allows me to use solar/battery or grid with a seamless transfer. However, I could split my home electric supply to essential and non-essential, so the essential is below...
  2. ericmark

    Friedland door bell and transformer

    It uses 6 volt DC, but a higher voltage AC.
  3. ericmark

    Socket move and ring main extension

    OK, what are the readings? Loop impedance centre of ring final minus the look impedance at the consumer unit will give us the prospective volt drop, OK not quite that easy, need Installation Method, Rating factor for grouping Cg, Rating factor for ambient temperature Ca, Design current for...
  4. ericmark

    Plug in solar, what do you think?

    I tried to find out more, but at the moment this seems to be all we can find, most adverts have not been up-dated, so we have no idea what will be on offer, and what instructions will come with them.
  5. ericmark

    Friedland door bell and transformer

    Well there were only two options, glad it works.
  6. ericmark

    Friedland door bell and transformer

    Since when? Pushing the button give ding releasing it gives dong. Spanner, a pair of snips, etc, between 0 and 1 should work it even with no wires. Once connected often springs need stretching or compressing, so the striker does not remain on either chime. But you should see plunger move when...
  7. ericmark

    Grounding metal garden room

    I would say no, in the main, they are bonded anyway with fixing screws, you are relying on the RCD tripping, unlikely with a TT earthing system, enough current can flow, to trip on over-current, it has to be TT as with loss of PEN, the door and door frame can become live in respect to true...
  8. ericmark

    Friedland door bell and transformer

    The 0 terminal is at the moment used to link the door push to the transformer, and either 2 or 3 goes to the door push and the other goes to transformer, and it does not matter which way around, so nothing to identify which pair is which.
  9. ericmark

    Friedland door bell and transformer

    The question is can you work out which pair goes to the door push.
  10. ericmark

    Friedland door bell and transformer

    Yes, can use batteries, but you need to work out which wires are which. You have two cables, one from the bell-push, the other from the transformer, both look the same. So one pair of wires will no longer be used, and the other pair go to 0 and 1. The 2 and 3 terminals have no external wires to...
  11. ericmark

    Doorbell issue

    I have a Tapo doorbell push, I did not buy it to do that job, but the Tapo and Kasa hubs (Both TP-Link) have a built-in sounder, so when I found I did not need the button to turn lights on/off, in dinning room being used as a bedroom when wife's knee was done, it was a non cost option to reuse...
  12. ericmark

    Doorbell issue

    If the doorbell uses zigbee, then any zigbee unit in the building between house and gate will relay the signal. I have it with my TRV head in wife's bedroom, which is too far from the boiler, so a plug in socket adaptor on the landing relays the signal.
  13. ericmark

    How can I heat the hot water towel rails without putting the heating on ?

    I would agree, I would temporarily fit with a plug and run through a monitor, or turn everything else off, and use the smart meter.
  14. ericmark

    Log periodic aerial elements length

    I tested the aerial on transmit, how much signal was reflected, or voltage standing wave ratio (VSWR), I have found that results are surprising, and I have transmitted and received 2 meter (144-146 Mhz) on a long wire, which in theory should not work. Basic if it works it is OK, if it does not...
  15. ericmark

    Grounding metal garden room

    Not permitted TN-C-S in a building similar to a caravan, TT is only option.
  16. ericmark

    How can I heat the hot water towel rails without putting the heating on ?

    What will work, and what is economically viable, are not the same. My own towel rail is off all summer, the boiler could heat towel rail and DHW, but I found using 5 times as much energy to use oil to using electric, so even if oil 5 times cheaper, it still means only the same cost, and with...
  17. ericmark

    Plug in solar, what do you think?

    OK, it seems we must read the instructions, before we buy plug and pray solar. So the advert At £600, All G98/1 approved with no need for approved electrician to sign off. Now I thought, in Wales, Part P regulations require building owners to notify the LABC for work done in special...
  18. ericmark

    Angle grinder speed. And wire brushes.

    Had to use it today, no problem at all.
  19. ericmark

    Alcove lighting/LED strip advice

    I have seen electrically wound clocks but not new ones.
  20. ericmark

    Vintage Power Shower Ivory Triton 9.5w

    Seems likely @Alec_t is correct, but I look at "Vintage Power Shower Ivory Triton 9.5w" and question are you sure, it looks like an instant electric shower of 9.5 kW not a power shower of 9.5 watt to me? Power showers have a motor in them, and have cold and hot water feeds, and since not on...
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