RCD MAX ZS FOR TT EARTHING SYSTEMS Satisfying the maximum permitted earth fault loop impedance values in a TT earthing system may not be possible due the the higher Ze readings in a TT system. BS 7671 table 41.5 offers alternative maximum permitted Zs values for TT earthing systems, other ...
RCD MAX ZS FOR TT EARTHING SYSTEMS Satisfying the maximum permitted earth fault loop impedance values in a TT earthing system may not be possible due the the higher Ze readings in a TT system. BS 7671 table 41.5 offers alternative maximum permitted Zs values for TT earthing systems, other ...