tncs bonding. looked at a job in a flat last night( cu change, extra circuits), in a block of 24 . they all have 2 60amp sub mains to them from basement (one off peak)
both sub mains are run in 16mm t+e. in the flat the water supply is in copper and is bonded in 6mm. am i right in saying that this should be 10mm? if so then is the cpc undersized in 16mm t+e?
flats built in early 80s. flat on 5th floor!
both sub mains are run in 16mm t+e. in the flat the water supply is in copper and is bonded in 6mm. am i right in saying that this should be 10mm? if so then is the cpc undersized in 16mm t+e?
flats built in early 80s. flat on 5th floor!
