Hong Kong's Labour Department has reminded employers, contractors and workers to isolate electrical systems and strengthen risk controls at workplaces affected by rainstorms.
At a glance
- Electrical work should be avoided in places affected by rainstorms wherever possible.
- Circuits and equipment should be isolated, locked out and tested dead before work begins.
- Unavoidable live work requires a task-specific risk assessment, suitable equipment and competent supervision.
A warning for rain-affected workplaces
The Labour Department's reminder is directed at employers, contractors and people responsible for electrical work. Heavy rain can introduce water into places that are normally dry and can expose damaged cables, sockets or equipment. The official notice therefore starts from a conservative position: avoid electrical work in affected locations wherever possible instead of treating wet conditions as a routine inconvenience.
Isolate, lock out and test
Where work must proceed after conditions are made safe, the department says relevant electrical sources should be isolated. Lock-out arrangements and warning notices help prevent another person from restoring power unexpectedly. Testing for dead is a separate step, because an open switch or disconnected-looking cable is not proof that a circuit is de-energised. These controls should be completed by competent people using suitable instruments.
Live work needs a higher threshold
The release does not present protective gloves or boots as permission to work live. If live work is genuinely unavoidable, the responsible employer or contractor must assess the specific task and introduce suitable precautions, equipment and personal protective equipment. The decision should account for water, access, exposed conductors, nearby metal surfaces and the competence of the people involved rather than rely on a generic checklist.
What workers and site managers can check
Before restarting a rain-affected area, teams can confirm who controls the electrical isolation, whether distribution boards and temporary supplies remained dry, and whether damaged equipment has been removed from service. A work permit can record the boundary and responsible people. Anyone who finds an immediate electrical hazard should keep clear of the area and use the workplace's established emergency and reporting procedures.
Why this matters beyond construction
The principles apply wherever powered equipment meets rainwater, including event sites, shops, workshops and temporary outdoor installations. Young workers and trainees may be less familiar with unusual weather conditions, so induction and supervision are important. Training, however, does not replace the employer's duty to provide safe systems of work, and an employee should not be asked to improvise repairs outside their competence.
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Official source
Read the LD reminds employers and contractors to ensure electrical safety during rainstorms. The linked authority remains the source of record for operational changes, deadlines and eligibility.