C
cadspark
I'm looking at remedials from a PIR and one thing is a switch fuse with an 80 amp BS88 is serving a 16mm run of 2 core and armour SWA which serves 3 sub boards in 3 seperate outbuildings and they have been wired so they loop in and out at henley blocks until the final sub board. The total run is over 100 metres and it's exported TNC-S (Please don't start this one again) The Zs at the final board is 1.17 ohms which is way over the 0.46 to meet the 5 second disconnection time. Any thoughts on a relatively cheap solution as the client is on a tight budget.