Guineafowl's latest activity

I’d say 73V is an unlikely choice, assuming the aliens have a similar biological make-up and tolerance to electrical current. Here on...

We are in different worlds and I need some advice which applies to a particular practical situation in UK. I appreciate your input...

Yes, I think we’re into ‘tomahto/tomayto” territory here. What you have is TN-C-S with extra earth rods at the installation end. You may...

Ok. I suspected as much. Here in the USA the transformer is seldom very far from the service panel. Several hundred feet at the most...

Various reasons: - A TN-C-S earth is almost always PME (protective multiple earthing), meaning the neutral must be earthed at multiple...

There are pros and cons to every earthing system.

That’s right, a TT earth is the customer’s responsibility, and perfectly acceptable if in spec. The OP requested an engineer visit to...

I’ve just read this bit again - am I missing something, or did those engineers just walk away from a fault? At least part of your cable...

I hadn’t heard of that, but I looked it up - on the same site, in two different places, it seems to say two different things...

I have often turned nails into "soft iron", by heating and quenching them, for pupils making magnets. This makes the core lose its...

That will change the magnetic properties, but it would actually harden it, and make it brittle. If you let mild steel cool slowly, then...

Feeble! Your electric shower would draw 40A or so, for a start. My house has 100A*, and it’s just a rural croft house. I’d say you’ve...

Heating copper to cherry red, then water-quenching, would soften it, but steel would harden. However, mild steel wouldn’t harden...

Remember that of the three earthing options, only TN-S and TN-C-S are the DNO’s responsibility. TT is entirely the customer’s. I’d say...

What I said seemed to be the conclusion of Veritasium’s experiment? Time to first current pulse in the bulb was 1m/c seconds, determined...