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This is where as an electrician I find a problem. I remember being worried with mothers Worcester Bosch boiler only to find it was completely open at the bottom and made no seal. But there is nothing on the covers to say which can and which can't be removed by non gas safe. I know today one can...

But once room not occupied, no gain. What we hope is the room never cools to ambient. Today phone tells me 6°C outside, my thermometer shows me 11.1°C unheated room with door open to heated room, 18.1°C my bedroom, 17.2°C the flat under main house, not heated, but boiler is there, 20.1°C the...

Working with this as the volts increase, so does the mA leakage, at 4 volts within limits, at 12 volts near the edge, and by 15 volts tripped.

Fluorescent lights, and refrigeration when not using HF ballast or inverter drives.

Oh dear, seems no solar tomorrow, but exported 2 kWh today. I don't really worry about it, but being able to predict solar production would help to if worth doing washing overnight with off-peak or in the day using solar. With my EV tariff, no argument better overnight, but with some tariffs...

That is a completely different thing, before we got the HF fluorescent fitting, the old wire wound ballast was very voltage dependent, I did some experiments with an auto transformer, and that was what the voltage optimiser was, my was on a 58 watt 110 volt fluorescent fitting, and auto...

I would hope, 1st November, now fixed, I did smile at the American English, and the answer was wrong called it a "ring main" instead of a "ring final" but since they don't have ring finals in the USA likely it all went over his head. Ring mains supply our homes, and it allows one section to be...

Yes, such an easy mistake, not helped with poor labels, I consider "low voltage AC" to be 50–1000 volts, and 24 volts is extra low voltage, it seems in the USA they do not follow ISO labels so we get some extra low voltage items marked as low voltage. But a professional should know that, and...

After the accident I think Manchester, most electricians stopped fitting electric gates, fact it is stopping, means likely it has some protection to stop crushing children, back some 25 years ago I worked a lot on them, but that accident resulted in most people back healing any electric gate jobs.

It comes from a IET seminar when the percent volt drop changed from 4% to 5% and 3%, and I had tried to work out where the figures had come from, seem to remember 86 meters to 106 meters, but not re-worked out figures. What I was told was it is assumed a load of 20 amps at centre (ring) or end...

So 1 amp for around 20 milliseconds, but would not be able to set the RCD on.

I have considered one of the plus points of some (not all) RCBOs is they can switch off the neutral. We are told both neutral and line are considered as live wires, so need to turn off both to isolate, with some earthing systems we can get away switching line only, but we need to know earthing...

The saving claimed can never really happen, however AC can transfer power by inductive and capacitive linking, which is why every AC LED bulb has a resistor to leak some power around the LED's to stop them either staying on dim or flashing, if we look at the lumen per watt of DC bulbs designed...

Sorry I was assuming that somewhere there is an old time clock on the 24/7 supply which has been left in circuit to supply the storage radiators. That's very different to the smart meter having incorrect settings. I know there is a small problem between UTC and DST with most tariffs swapping...

Tea bag in top tea pot plus boiling water, just boiling water in bottom tea pot. Leave to steep, then add sugar to the glass and pour from both pots at the same time, to adjust strength to taste. In Algeria, they add mint, so use a single tea pot. Tie Nanna seem to remember it's called? Wait...

Technically you can have 106 meters of 2.5 mm² with a ring final, and 32 meters of 2.5 mm² with a 20 amp radial, so to replace one ring final may need 3 radials, so with the cost of RCBO's it is often cheaper to use ring finals. But it is all down to the amount of cable you will be using.

This is the interesting bit, the smart meter does the timing, there are two lines from the meter, one permeant line and one only line during the off-peak. So it would seem something wrong with the way the two supplies are connected on your side. It would seem the time clock is yours, not the...

Clearly people who enjoy tea, would not dream of putting milk in it. Never mind milk or water first, there simply should not be any milk. I watch my son-in-law pour the tea in ore, water in one hand, tea in other hand, poured together to get the concentration required, loads of sugar, and no...

I have just watched a video on Awaab’s Law, interesting as it points out damp not always due to the building. I remember a childhood home, with single glazed windows, with a trough under the window, and a small hole to the outside, so the condensation was led outside. In other words, a built-in...

I have looked at these I decided better to hard-wire the shed, but the move away from lead acid means leaving part charged no longer matters, and one of them would likely power my shed for a year, before it needs re-charging, and they do have the option to charge off solar panels. They also have...