Posts

Heading Controls Myths Explained There are many known tips that we pick up over the years regarding our home heating controls that enable us to save both energy and money but which ones are true and which are simply olds wives tales? As society becomes more aware of energy efficiency in the home there are […]

  A much smaller version of co-ax, this is used for low level audio signals. The screening eliminates hum pick-up, though there are other ways to do that too. Use of long lengths of screened cable for audio can easily run into issues.    

  Common in 1930s for socket circuits Used as exterior farm cable well after that Lead sheath does not make reliable earth connections Rubber inner insulation Tail rubber insulation tends to disintegrate, and muck accumulates on cable ends causing leakage    

Cable Sizes & current carrying capacity (stranded copper conductors) BS 5467 XLPE Insulation Conductor area (mm²) Current carrying capacity (A) for cables “clipped direct” Overall diameter (mm) 2 core 70°C PVC 3 or 4 core 70°C PVC 2 core 90°C XLPE 3 or 4 core 90°C XLPE 2 core 3 core 4 core 1.5 21 […]

Like T&E but with no neutral conductor. Not a popular cable. Supplier Usually used for lighting circuits, the wiring works like this: The permanent lives and switched lives of the circuit use the single core and earth cable (6241Y if you want to google it). This run starts from the MCB and loops between the […]

Neutral and earth conductors are arranged distributed around the central live conductors. Mainly used for incomers.