Electrical power supply is vulnerable in quarries due to the exposed conditions
and heavy work being carried out. Common causes of electric shock and burns
include buried cables being struck during excavation work, plant vehicles
damaging overhead power cables and equipment becoming exposed to the elements.
Electricity kills! Every year many people at work suffer electric shocks and
burns. Other injuries, such as falls, are caused as a result of a shock. The
risk of electric shock is greater in quarries because cables or equipment may
be exposed to wet conditions, damaged by plant (e.g. overhead power lines) or
falling objects; or dug up during excavation.
The British HSE has published "Electricity Safety in Quarries" for persons
involved in managing quarry sites. The web-based guidance explains the risks
posed by electricity in quarries and gives practical guidance on:
The guidance is aimed at quarry managers, rather than electrical experts, and
reflects the requirements of applicable health and safety legislation. The
leaflet gives practical guidance on electrical safety in higher risk areas in
quarries. It does not cover offices or other low risk parts of quarries. The
guidance is intended for quarry management, rather than electrical experts.
By following the often simple procedures detailed in the guidance the risks
associated with electricity in quarries can be managed.
AplusA-online.de - Source: Health and Safety Executive (HSE)