Singapore legislation
Regulation 34
of Workplace Safety and Health (Construction) Regulations 2007
Regulation 34
Electrical power circuits
Subregulation 1
It shall be the duty of —
the employer of any person who carries out any work in the course of which the person may come into contact with any part of an electrical power circuit in a worksite; or
the principal under whose direction any person carries out any work in the course of which the person may come into contact with any part of an electrical power circuit in a worksite,to comply with paragraphs (2), (3) and (4).
Subregulation 2
Before any work is carried out at a worksite, the worksite shall be inspected to ascertain whether there is —
any electrical power circuit which any person may come into contact with in the course of his work in the worksite; and
any tool or machine which is connected to any electrical power circuit and which any person may come into contact with in the course of his work in the worksite.
Subregulation 3
Where there is any such electrical power circuit, tool or machine referred to in paragraph (2), appropriate warning signs understood by the persons carrying out the work in the worksite shall be clearly posted and maintained at the place where the circuit, tool or machine is located.
Subregulation 4
No person shall be permitted to work in a worksite where he may come into contact with any part of an electrical power circuit unless —
he has been advised of the location of the electrical power circuit, the hazards involved and the protective measures to be taken; and
he is protected against electric shock —
by de-energizing the circuit and earthing it; or
by guarding it with effective insulation or other means.