ABSTRACT
Main points: • Automatic disconnection of supply must be provided at the origin by one or
more ‘time-delayed’ or ‘S’ type RCDs not exceeding 300 mA in order to give discrimination with other RCDs protecting nal circuits
• Additional protection by RCDs not exceeding 30 mA shall be provided for all nal circuits for lighting, socket outlets not exceeding 32 A and exible cables rated no more than 32 A feeding mobile equipment
• Additional protection by supplementary equipotential bonding shall be provided in areas intended for livestock
• All equipment must be to a minimum of IP44 • Socket outlets for use outside must be either BS EN 60903-1 or 2 except that
socket outlets complying with a National Standard may be used, provided they give no less mechanical protection than a BS EN 60903-1 type and are 16 A maximum rating
• The electrical installation between the origin and equipment must be inspected and tested after each assembly on site.
