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Had it with late parent's house, I could find no sign of there ever being an earth other than for GPO party line. I know there was one, as when a boy, I had blown a 13 amp fuse with a line to earth error. But could not find any sign of what it had been. So I phoned the DNO and asked what earth...

I thought it was down to the party line, it was how each party selected the phone?

Since clearly the guy did not know what he was doing, it is meaning less. We want an ELI of less than 200 ohms, as above that it can be unstable, with a TT supply that relies on RCD protection. With a TN it depends on fuse size, but with a 100 amp fuse less than 0.8 ohms with TN-S and 0.35 ohms...

Battery warrantee is longer than the payback time. So I am OK, and it is in the entrance to a converter garage so not under the main house, and I would hope a garage can stand a fire for a reasonable time, now would like to see them moved outside, but had they been fitted a month earlier then...

PME has multiple earthing, this is not required to the same degree with TN-C-S. I have only seen problems once, where a radio ham fitted earth rods for his radio, which the electrician had bonded to the TN-C-S supply earth, normally not a problem but the radio hams earth was a very low ohm...

My battery on a dull day like today lasts until 4 to 6 pm. Since on Octopus Go it does not matter when it runs out, if I moved to Octopus Argyle then it would matter, I would need the battery to last until 7 pm so would need to boost charge it on a dull day, by monitoring weather and altering...

There are a few ways to make it safe should there be a loss of PEN, this may change, as one method used is to auto disconnect if the voltage goes out of range, but there are proposals to increase the voltage range permitted, if this happens, then that method would no longer work. Since there...

I was not considering direct drive hydropower, my comment is about having inverters, which stop generators over loading even for a very short time. This is a major problem, we want the incentive to use power when there is plenty, but if we had two supplies, there would be those who would have...

My son had a charger fitted by Octopus, and they fit a dedicated consumer unit, and will not use the existing even, if as with my son's case, brand new, would outlets reserved for the EV charger. So the only consideration is TT or TN-C-S, the loss of PEN problem with TN-C-S means in many cases...

Likely the earth rod has become disconnected, and just needs a new clamp fitting, I know mine wants renewing, old one has split. Typical reading one earth rod is 60Ω and the regulations say but if the car is charged outside, likely a TT earth is safer to a TN-C-S earth.

Interested to hear how it works. I debated between Hive and Wiser, in the end went for Wiser. But have found TRV heads with on/off oil boiler do not work as well as they did with gas modulating boiler. They work, and have reduced costs, and got rooms in use to required temperature. Started with...

She wants to come in, we have a cat flap, and she uses it to go out, there is a delay coming in, as it has to detect her chip, there is a Ferrol cat we feel sorry for, so at moment sellotape over the catch so free for all, has been like that since first snow, but not only does she want letting...

To select washing machine on at 00:30 to 05:30 as cheap rate, or using predicted rates can help, but I am talking about the supplier doing the switching on and off, there is a problem as my washing machine, dishwasher, and tumble drier will not auto restart if the supply is turned off/on but the...

It will work the same if direct coupled, the wave power devices often not direct coupled, connects through an inverter.

Seems to be working well, copied what was done at the heritage railway where I volunteer.

The generator needs to be directly connected to the grid, not through any inverter, so it depends on how many poles on the generator, looking at 6000 rpm, 3000 rpm, etc.

Have chicken wire over mine.

Since when has politics made sense? The big problem is lack of rotating mass. With an alternator connected to a large steam turbine, a sudden load will be taken up by the weight of the rotating mass, but with wind farms, solar and wave power, there is an inverter between the rotating mass if...

to 1 and 3 and N and L to .

It is called a motorised valve, it has a micro switch inside, so the boiler will only run after it has opened. I have tried reading the description, but can't work out if valve at fault, or what supplies the valve (thermostat and programmer) what tools do you have to test with?