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An leaves you open to finding a burger van plugged into the end of 250m of festering doom!

Not as obsolete as you might think..... https://www.sangamo.co.uk/collections/round-pattern-time-switch/products/q551?variant=41085910022 Still very much alive & well & made today. The quartz version has a battery backup so the getting out of sync problem went away some time ago.

The problem with NEMA photocells that switch at 70LUX is that these were designed years ago for use with SOX lighting. The switching level includes a deliberate offset to allow the SOX lamp a warmup period at dusk before it got really dark. These can switch "too early" if used with other lamp...

I can't tell you which type of spray foam to use, but I can tell you, around 10 yrs or so ago, I tried to "repair" damage to the foam insulation on our hot water cylinder using a product from a certain retailer that carries a product range that suggests its 'simple & straight forward' This...

Never underestimate the lack of knowledge that a Customer has.... I remember, sometime ago, being asked about the hire of a microphone..... A few minutes into the conversation it dawned on me that he had very little knowledge of what he actually needed to accomplish what he wanted. He'd seen a...

Me too! I have a 32A one, next to a tap on the side of the conservatory. It feeds the "doggie shower" :-)

For those that come looking for this thread later..... As others have said, just because the motor has three wires does not necessarily mean its a three phase motor! A single phase motor will also have three wires - one connecting to the 'run' winding, one to the 'aux/start' winding & the...

So, playing devils advocate here for the purposes of discussion.... A socket outlet (& I'm including Ceeforms here) is a general purpose thing intended for use by an ordinary person. Soooo .... that socket should be installed in a manner such that it is safe for use by the unskilled in the...

I think the OP means the pull cord that is part of the fan and not a separate pull-switch. If you zoom in on the OPs attached image, you can see what appears to be a pull-string attached to what I think is a momentary switch. I suspect that this provides a trigger pulse to the electronics. I...

What are you measuring it with & when was that device last calibrated?

Go OTT! The cost isn't in the cable, its in the work to lay those cables... Once you have the floors up & routes open... go mad! We have 48 points across our 4 bed house... only about 8 are spare! Its best to avoid distributed hubs/switches if you can. One central switch is best.

Perhaps not as much as you might think... "steam tables" will reveal the answer to be around 1.4bar absolute, so 0.4 bar about atmos or around 6psi.

I've been having the same problem since Xmas. New immersion (so it cant be scaled up yet). Thermostat set to 60 yet the cutout randomly trips. Its a combined thermostat/cutout. Have replaced it twice, still happens. I've now modified the plumbing the get a thermocouple inside the cylinder so I...

Blimey! I haven't seen one of those in years! The fact that it still has solid green on the earth sleeving dates it somewhat. Is it still serviceable? Not sure about the 'mic' cable in the same conduit as the mains feed thou :-)

The 'Electronic Orange'?

If you have only one lighting circuit (ie. they are ALL fed from the same fuse) then the neutral isn't 'borrowed'. In this circumstance, taking a neutral connection from a light fitting & distributing it back to a number of switch points does not contravene any regulation.

Aren't these mutually exclusive terms? It would seem, at the moment, that its not the LED itself that fails prematurely but the supply electronics. I would suggest that the neon, with its simple dropper resistor, will survive an order of magnitude longer than any LED indicator if my...

A Few comments..... Those cables, well, actually singles really, look like they are cotton covered VIR. The combination of the cotton covering & rubber insulation can make them look alot thicker than the conductor really is - try stripping a small section. One of the cores is unlikely to be...

This is your friend here ...... At least in terms of being able to electrically 'separate' the parts in order to work out what is happening.

Providing that the O/P doesn't exceed the rating of a core and arranges things so that each cable has two switched lives (ie from the same OCPD), a neutral & an earth - I don't see why he cant have 4 different switched circuits using the two lots of three core plus earth cables that he has.