Hi
New to this game, and unsure about TT system I've just tested.
system setup has a 100A DP MCB between the Head and the DB.
DB has a 100 A main inclommer with split load 63A 30ma RCDs.
Ze on the system is 49ohms
PFC is 9A (0.0009kA)
BUT on the Zs tests, almost all outlets - sockets and lights are reading similar reading of between 35 and 42ohms and a PFC of 9A.
These readings are well above tables in 7671, but consistant with the calculation method of obtaining Zs
Would appreciate some guidance and or ideas on what is causing the high readings
New to this game, and unsure about TT system I've just tested.
system setup has a 100A DP MCB between the Head and the DB.
DB has a 100 A main inclommer with split load 63A 30ma RCDs.
Ze on the system is 49ohms
PFC is 9A (0.0009kA)
BUT on the Zs tests, almost all outlets - sockets and lights are reading similar reading of between 35 and 42ohms and a PFC of 9A.
These readings are well above tables in 7671, but consistant with the calculation method of obtaining Zs
Would appreciate some guidance and or ideas on what is causing the high readings