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Afternoon all, Got a friend (honest !) who has a problem... He lives in Surrey, a bit in the sticks. Overhead supply, TT, VOELCB and a CU wth a single 30mA RCD. Unsure of age, but all visible cables are PVC. I have seen it, but haven't had any kit or done any delving, so no test or...

Morning everyone, Had a bit of trouble recently. I've got an old brick barn (a shippon in Cheshirespeak), which is weatherproof but unheated. Recently had trouble with with RCD tripping with two specific bits of kit. Both are cat 2, and both will trip the RCD if you touch the switch to...

Morning everyone, In my yard, I've got 8 off 500w halogen floodlights. I put them up to illuminate gateways and tracks so that people can see what they're doing with their horses in the winter mornings and evenings. They're dirt cheap - only about £4 each - which was really important...

Hallo all, Got a couple of Danlers Bathroom PIR sensors to switch the extractor fans. However, the detection range is too great, and they trigger when someone walks by the open door. Anything wrong with masking off part of the lens with tape to control the detection area ? Anybody...

Morning everyone, Got an usual install and weird things happening in the bathroom. Immersion heater is switched via a contactor by the GSHP controller, which is about 30m away in an outbuilding. Contactor is in a box in the airing cupboard near the tank. Immer can also be switched by a...

Morning all, I've lost one of the removable probe tips on the leads with my Megger 1552. Megger will sell me a pack of 20 for £10 +vat, plus £7 carriage. That's £20 for a tip...anybody know a better way ? Without this, I won't be able to use it for my 2391. I know exactly where the...

Morning everyone, Need to join a bit of flex from a mirror heater to t&e. The flex from the heater isn't long enough to draw to anywhere accessible, so I'm faced with making a joint which will be inaccessible (mirror glued to wall, tiled surround). Is it ok to use crimps with flex ? If...

Morning everyone, Anyone used one of these ? does it avoid problems with nicking the insulation when trying to get the sheath off using a knife ? Thanks, David

Afternoon everyone, I took various people's advice and forked out for a Megger 1552 (used from ebay). Just got it, seems intact and does what it says on the tin, but is out of calibration. Any advice on where to go for calibration, and what I should expect to pay ? Thanks, David

Hallo everyone, TLC are knocking these out for £310 http://www.tlc-direct.co.uk/Products/TMVR2230.html Seems to do everything you need, except RCD ramp test. Anybody got any experience ? Thanks, David

Morning Rob (if I may call you that), Is this what you do in your spare time ? :lol: http://www.rfelectricalcourses.co.uk/

Morning everyone, I'm looking for a way to switch an immersion heater from two sources. My first thought is to use a changeover sw to either the heatpump controller or manual switch. I'd hoped to find a double pole 2 way switch that looks a bit like this : I cant find one; anyone know...

Morning everyone, Apparently, my TV won't work in a couple of months when they turn the transmitters off. I don't want to spend squillions, so I got a freeview set top box (hand me down from the mother in law !) and plugged it in. It failed to find any stations. Adding in the fact that...

Morning everyone, Just had a quote for a heat pump. MI's say it should be supplied via a 45A D type mcb without RCD. It's a 230V single phase unit. Pump running current is 19A, start up 32A, with 6kw direct electrical heat top up (not switched on when pump starts), giving 26A extra. So...

Morning everyone, When there are more than one cable to go into an accessory terminal (RF circuits), should the cable ends be twisted together or not ? Similarly, when there is only one cable to go into a termonal ina socket outlet, should the cable end be doubled over ? I've got both...

Morning everyone, New radiator to be fitted in a location which will cover a socket outlet. I've removed the faceplate, crimped the cables together, covered with heatshrink and fixed a blanking plate. Then it occurred to me that, despite the cable running in a safe zone, you can't...

Check out the bottom of the MI's for a towel rail I bought from a reputable company recently...

morning everybody, Big risk of damaging UFH cables with a steel trowel. I thought a plastic one would be be better, but I can't find one (little notched spreaders yes, trowel with a handle, no). Anybody know where I can get one ? Thanks, David

Morning everyone, Adding another light fitting. Switched live in the existing ceiling rose is not marked. Existing cable is red/black. Should I sleeve the sw live in red or brown ? New cables are, of course, brown/blue, and CU will be labelled to show mixed installation

Afternoon everyone, Usually, manufacturer spec for extractor fans is to be fused down to 3A . Any body know why I shouldn't use a 3A mcb (plenty of spare ways in this CU !) ? Fan rating = 20w; inrush current can't be near 3A can it ? I assume a 3A plugtop fuse would be slower than a B...