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MikeSharp01 posted a topic in Electrics - OtherI built the distribution panel today, see below. The other cables are external and while the two leaving for the garden room and house are SWA there are two 25mm tails coming in the from meter box via the main isolator in the meter box, directly behind this panel, and I am wondering of I need to mechanically protect them in trunking or some such? Also I have stripped back the tails I have used in this panel far enough to ensure you can see the cable colours outside the housings of the switches etc - it feels like the right way to do but is this the right way to do it?
I am just about to wire the distribution box, see pic below and drawing below, This distributes the incoming power from the meter panel next to it out to the garden room 1x80A fused unit (upper), the main house - 1x80A fused unit and a local commando socket (16A) and the garden lighting (1x small CU 16A / 6A breakers). I have three things I am not sure of so any ideas greatly appreciated; Should I use ferrules on the ends of all the 10 / 16 and 25mm2 tails across the cabinet (they are already on the internal wiring in the small CU). I would have though I would but installations I have seen don't always use them and the regs look agnostic (526.9.1 in 17th Ed)! To get the cables in and out of the CU I propose to just use simple grommets around the holes, I don't think I need to seal them although I could. Do I need to earth the earth connections, and run the earths through, on the Switch Fuse units as the earth common block will be used to terminate the earths from the cables these supply, it seems daft to introduce two additional points of failure by connecting the outgoing cable earths via the switch fuse units. The cables will all be held down on the board by cable ties through table tie plugs in the board. All and any thoughts appreciated.