TT system, RCD 100mA. I contacted electricity supply company to check earthing, and an engineer came to house, and fitted PME Earth terminal near to consumer unit. He connected the PME to fuse, but NOT connected to consumer unit. He advised me to first make sure that everything is cross-bonded, and only then connect PME to Consumer unit.
Can someone tell me what is meant by cross-bonded? And how do I ensure that everything is cross bonded?
After PME is connected to Consumer Unit, will RCD still trip at 100mA OR will it start tripping at 30mA?
Please bear with my naïve questions, I am first time buyer.
Can someone tell me what is meant by cross-bonded? And how do I ensure that everything is cross bonded?
After PME is connected to Consumer Unit, will RCD still trip at 100mA OR will it start tripping at 30mA?
Please bear with my naïve questions, I am first time buyer.