Recent content by AdrianUK

The frost stat in series with the high limit stat was intended to solve the problem of what happens when the frost stat & boiler are in an unheated space eg a garage. In this scenario, when the frost stat triggers the boiler will fire & prevent the system from freezing BUT, since the frost stat...

Didn't try 'Catch the Cap' but we did discover 'capacitor spot welding' in Electronics at college - the edge of the bench had a nice, convenient, aluminium strip ...... :cool: We also proved, in Chemistry, that mains water pressure is higher than gas pressure..... connect the water tap to the...

The first time I saw one of these plugs I was at Infant school (circa 1972) .... it was fitted to what I now know to be 'Baby Belling' desktop cooker in the corner of the school hall. It was so very different to all the other plugs that I'd seen so the younger me decided that it must be some...

I pleased to say my experience is the opposite. I called National Grid Yesterday to report damage (well, half the boards ripped off) to a wooden substation door that I walk past with the dog. I dialled 105 and got connected with a knowledgeable call handler who understood exactly what I was...

Noooooooo...... there is a thermal relay inside...... kinda like the pre-empting heater in a room thermostat... its gives the photcell an in built 'delay' and hysteresis so it switches cleanly.

That would be my next move....

I think that fuse is on the load side of the meter, but I agree that it may well be popped.

I reckon the meter outlet is the supply, then the inline fuse, then the P42 controller & finally the MEM switchfuse & off to the lights......

That's a RoyceThompson controller for a two part photocell. In the days before the 'modern' twist-lock units, there was a separate photocell module that mounted outside & the control box inside (or rather inside the lamp column control box). If you flick the switch to 'TEST' it will over-ride...

I have one of those that is branded 'RS'. The original maker was MK/Duraplug. Back in the day Duraplug was open to re-branding their product if there was enough volume - I have examples of the MK ToughPlug that are branded 'BBC' & 'BT' amongst others.

That isn't an induction heater! Its a copy of an ANTEX device that was originally made in the 90s. Its essentially two soldering irons joined together & the soldering iron 'tips' replaced by a bigger head block with a semi circle cutout. They have heads for both 15mm & 22mm pipe. I still have...

A topic for discussion: LED battens contain an electric power supply. As a general rule heat is the enemy of electronics, leading to a vastly reduced lifetime. Is the loft a suitable place for an LED batten?

Back it up with a nut or a nylok ?

Well not necessarily. The BS4343 standard on which these connectors are based defined several voltage bands which were designated different colours and also differentiated by having the earth pin at a different position based on the clock. Each voltage band was also available in 2 pole, 3 pole...

Well, no. The phase relationship between the 'permanent live' side of the motor & the STAR contactor is fixed. Lets assume, for the moment, that closing the STAR contactor makes the motor rotate CW. If, after a delay, the STAR contactor is opened & the delta contactor which is also configured...