I have read on some earlier posts that when enclosing cables in conduit grouping and derating need to be considered so I wanted to check the following:
Is it ok to enclose 2 x 2.5mm T&E (Ring circuit) in 20 or 25mm oval conduit? The conduit is buried in the wall, is approx 83" long and only encloses that part of the circuit.
Same question for a 4 cable run, approx 88" conduit length.
1 x 3 core 1.5mm (interconnected smoke alarms)
2 x 1.5mm T&E (2 lighting circuits)
1 x 6mm T&E (supply to loft junction box for future use, e.g. Radial etc).
How about the 6mm in one 20mm oval and the other three in a separate 25mm oval conduit?
and finally...
Switch drops (3 way) & fitting: 5x1.5mm T&E / 4x1.5mm + 1.5mm 3 core. If I remember correctly, these will all fit in a 1 1/2" capping. Can I do this, or can I do 3 cables in one 20/25mm conduit and 2 cables in another one. these drops aren't so long (approx 58").
Thanks!
Lu
Is it ok to enclose 2 x 2.5mm T&E (Ring circuit) in 20 or 25mm oval conduit? The conduit is buried in the wall, is approx 83" long and only encloses that part of the circuit.
Same question for a 4 cable run, approx 88" conduit length.
1 x 3 core 1.5mm (interconnected smoke alarms)
2 x 1.5mm T&E (2 lighting circuits)
1 x 6mm T&E (supply to loft junction box for future use, e.g. Radial etc).
How about the 6mm in one 20mm oval and the other three in a separate 25mm oval conduit?
and finally...
Switch drops (3 way) & fitting: 5x1.5mm T&E / 4x1.5mm + 1.5mm 3 core. If I remember correctly, these will all fit in a 1 1/2" capping. Can I do this, or can I do 3 cables in one 20/25mm conduit and 2 cables in another one. these drops aren't so long (approx 58").
Thanks!
Lu