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Note that all mcb's are type C and with a 25A incommer, there is no effective discrimination. Its a good job the incommer is type C! In Spain, they seem to accept regular trips in exchange for a lower tariff. I don't think I would. F.

The outlet temperature is determined by the water flow through the heater. If as you say, the outlet temperature is very hot, this can only be due to insufficient flow. I suspect that the over-temp trip (thermostat by outlet) is operating correctly, cutting power to the heater. This process...

Like most things in the newspapers, its utter B*llocks!

"MES" lamps are never mains voltage, they are "Torch lamps". These are likely to be SES (Small Edison Screw) Frank

Don't forget to checkout the planning permission. In this local authority, decking over 300mm above ground requires planning permission. I would think that this applies to all areas. Frank

By using the appropriate test equipment.

Try wiring the two motors in series.

I had a reel of that...threw it in the skip... What I really need is that stuff all the way back to the power station....imagine how good that would sound? Perhaps we could also get the generators re-wound with it too? and all the transformers ? Do you think it would be OK clipped to the 400kv...

Have a look at what contactors with DC coils are actually available. I suspect that a 50v coil is going to be the only candidate for replacement. You might have to change one of the resistors to suit the operating current of the new coil once its resistance is known. Frank

Very common in journalism. If you don't have the facts, make them up!

Take the valve apart and have a look at it. Usually, the actuator will come off, then you can remove the rotor part without disconnecting any pipework. If there has been crap inside, then look for wear or scoring on the rotor. Check that there isn't a pressure relief valve in the system that...

If a raised deck is more than 300mm above ground, it requires planning permission. (Well it does according to my local planning office) For raised deck supports, I would set the posts on 100mm thick concrete pads at the bottom of your holes, then fill up with hardcore. Once connected to the...

Try telling that to my Erbauer mitre saw in which all the metalwork became live and gave me a hell of a belt yesterday..... Class II is all well and good but when things go wrong??? Frank

You have already answered your own question. The two cable feeds cannot be combined. You will need a 2-way changeover switch. Frank

Only by virtue that their radiation pattern is relatively free from minor lobes. If the interferance is comming from the direction of the main lobe, the log will not be any different than any other type of aerial. Frank

Isotropic: "invariant with respect to direction". Do you mean "Ionospheric" ? :?

I don't care, it gave me the link I was looking for :D Frank