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I am wiring four bollard lights with PIRs to have them come on as people walk down the long drive. I have run a 1.5 mm 3 core SWA from an all -weather FSU ( because I cant make the connection indoors). What is the best way to connect from PIR (to light) to PIR etc?

Does anyone know of any.

Does anyone know of a test cert printing package that works on an Apple Mac?

Does anyone know of a device (paslode type device) that can fix twin and earth to brick/ concrete etc?

I have tested it direct and it passes fine. something in the circuit like what... Spark yes it is these circuits.

My tester (Metrel) does not trip the RCD at all, it stops the test process once it gets to 300ms and says fail >300ms.

Full set of tests. IR for P/N is low (25M?), others fine. Why should a very low IR between P/N that does not trip the RCD under normal conditions fail the RCD whilst doing a 1 times test.[/wiki]

Thanks Adam. I will double check to see if there is anything plugged in but I was sure there was nothing. If it is an appliance should they remove it permenantly. By the way it fails on the 5 times as well.

It is a TT supply. The 30mA RCD when I test it isolated from the final circuits it serves, the results are as I would expect for a new RCD. If I then connect up the ring and test the RCD at a socket using the plug in adapter, the RCD fails (1 times is > 300mS) . Why should that happen, am I...

Thanks Paul, I get it except for the quoted bit.

My plumber said to use an S- plan wiring system. Can anyone enlighten me?

No available zone space.

TaylorTC yes it has both. A "mains supply to boiler" and "voltage free to boiler" which should I use and how do they differ. As far as upstairs goes how is the two port valved wired ie to where?

Right here goes. I have an OSMA WAVIN UFH with a manifold that controls four zones downstairs. Upstairs is all radiators. The boiler is a Gloworm 30CXI. From the UFH wiring centre I have connected the zone actuators and the zone thermostats no probs. My question is where do I connect the...

Well I need help with the wiring for my wet heating (UFH ground floor and radiators first floor) and combination boiler together.

Is this the best forum for an involved question about wiring underfloor/central heating system?

R1+R2 is 0.2?

On this TT supply I have a measured Zdb (all parallel paths in place) of 154? and yet the measured Zs on the ring (using RCD setting on my Metrel) is consistently below 1?. Can anyone explain how that can be?[/wiki]

I did offer to come over and sort it out for him but he insisted that it should stay the way it is.

I was asked today by a friend if this is acceptable. He has one main ring and a small (2 double sockets) ring sharing an MCB. He has no space on the CU for an extra MCB and does not want to tear the house apart to link the two rings into one.