Singapore legislation
Regulation 37
of Workplace Safety and Health (Construction) Regulations 2007
Regulation 37
Residual current circuit breakers and overcurrent protective devices
It shall be the duty of the occupier of a worksite where any electrical installation is used in the worksite to ensure that —
(a)
effective residual current circuit breakers are installed for all temporary electrical installations to provide earth leakage protection; and
(b)
overcurrent protective devices with the appropriate ratings are installed in the distribution board to provide overcurrent or short-circuit protection.