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Using a two wire test on Hi PFC, croc click to neutral, and probe the Live. Megger going through normal process, but then gives up and reads "trp". Obviously nothing trips at the CU. Is this an internal Megger trip? Do I do a no trip PFC with three wires, CPC, neutral and probe the live...

I am fitting fire doors to a flat, and need three hinges per door. There appear to be three grades of dire rates hinges, grade 7, grade 11 and grade 13. What's the difference between these?

Hi - I have recently replastered a chimney breast (6 months ago) after buying a new flat. The chimney itself has been removed and the "open" stack lies just above the room in the loft space. I can actually look down the stack from the loft. There are about three patches of damp appearing...

Proposal - 6mm T&E clipped direct, 9m from CU protected by 40A MCB supplying an 8.5kW shower. BC has informed me that table 4D5 shows cable not compliant, but I cannot see how this is the case. I have it that the design current would be 37A and the CCC of the clipped cable would be 47A...

How long is a piece of string? Which multimeter? I know, I know ... But the KT62 seems good value for money, and would appear to do all of the tests required for new circuits / CU change? Any thoughts about it...

Just taken a look at a flat we rent out and found that the three downlights in the kitchen are shot and the flex around the bulb is hard and broken. The fitting is fire rated and low voltage. Insulation should be away from holder. Not sure what lamps tenant has been putting in, but once I...

WF740 Washing Machine - shut door, select programme, and programme doesn't start. Problem seems to be that the light that normally comes showing the door is locked doesn't come on - so the programme won't start. Thing is, the door IS locked because you cannot open it until you turn off the the...

http://www.screwfix.com/p/terrier-i-temp-i30-programmable-thermostatic-radiator-valve/97338?cm_mmc=GoogleBase-_-Datafeed-_-Heating%20and%20Plumbing-_-Terrier%20i-temp%20i30%20Programmable%20Thermostatic%20Radiator%20Valve Spending about £160 per month on gas, and thinking about buying a few...

Installing an indpendent kitchen fan (not extractor) - independent of kitchen light. 1. Can I choose either to use a DP FCU off the ring or lighting circuit? 2. No other form of isolation required?

Each core is separated and is on the existing ring - 2.5mm? Not sure of the effect on current carrying capacity due to being buried in concrete.

I am trying to gain a measure of the Prospective Fault Currents of my supply for building regs. I could ask the supply company, but they will probably overestimate. I have a table for England showing the what these currents would be for 25mm and 35mm supply, depending upon the "length of...

Just trying to plan how the electrics are currently set up in my property. I have identified the ring main serving most of the sockets, and how they flow together by shutting off the mains, removing every socket, and doing a resistance test after connecting neutral to live, tracing each...

Just trying to plan the ventilation in the kitchen and bathroom in a refurbishment I am doing. No soffits and property is a top flat, so too costly to go through the roof. I'd like to use a standard extractor fan and cooker hood to extract out, but the main problem is that the length of...

Just submitted a building notice on Thursday for some internal alterations. They required 2 days notice. I stated on the form that I intend to start on Monday (tomorrow). Can I start the work without them first inspecting, or do I have to wait for them to come - in fact will they come...

I'm doing up a kitchen. The previous owners had an electric cooker, which I've replaced for a gas one. The new position of the gas cooker means that the old electric switch is right behind and above the new cooker's position. I don't need the switch. I can move it by chipping the old plaster...

I am installing a new kitchen, and the current cooker extractor fan vent runs beneath the ceiling along the wall. I want to run the vent directly above the hood and above the ceiling and below the floor on the room above to the outside wall. The current position of the vent will have to be...