Professional Development · Trades & Technical Skills · Electrical Installation – Fundamentals
Earthing, Bonding and Protective Conductors
This topic covers the principles and practice of earthing, equipotential bonding, and the sizing of protective conductors in UK electrical installations. It examines earth electrode types, PME (Protective Multiple Earthing) arrangements, main and supplementary protective bonding requirements, the special regulations for bathrooms (BS 7671 Regulation 701), the sizing rules in Table 54.7, and how the earth fault loop path enables automatic disconnection under fault conditions.
Inhaltsübersicht
- Earth Electrodes – Types and Selection
- PME Earthing and Distributor-Provided Earth
- Main and Supplementary Protective Bonding
- Protective Conductor Sizing – Table 54.7 and the Earth Fault Loop Path
- Testing and Verification of Earthing and Bonding Systems
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