Current that kills.
WHAT THE HAZARDS ARE
Electric shock Burns Fire from faults and overloading Explosion in some atmospheres
WHAT MAKES IT DANGEROUS
Electricity is invisible, and contact can be fatal immediately.
WHAT PROPER INSTALLATION REQUIRES
Work by a competent person Correct cable sizing Proper protection devices Earthing Inspection and certification
WHY EARTHING MATTERS MOST
It is what makes protective devices work, and defective earthing is common.
WHAT TO ESTABLISH
That the installation has been tested, and when.
WHAT TO ARRANGE
Periodic inspection by a qualified person.
WHAT PORTABLE EQUIPMENT REQUIRES
Visual inspection before use Periodic testing Removal from service when damaged
WHAT TO CHECK VISUALLY
Cable condition Plugs and connections Casing damage Signs of overheating
WHAT TO NEVER ACCEPT
Damaged cables taped up Equipment with exposed conductors Sockets overloaded with adaptors Improvised connections
WHY OVERLOADING MATTERS
It causes fires, and it is entirely common.
WHAT WET AND OUTDOOR CONDITIONS REQUIRE
Additional protection.
WHAT GENERATORS REQUIRE
Proper earthing Siting where fumes disperse away from people Protection from rain A transfer arrangement preventing feedback into the supply
WHY FEEDBACK MATTERS
It endangers utility workers.
WHAT TO ESTABLISH
That nobody works on electrical systems without competence and isolation.
WHAT TO RECORD
Inspections, tests and faults.
