PORTABLE GENERATOR SAFETY TOOLBOX TALK
Portable generators create both electrical and combustion hazards.
Control of electrical, exhaust and fuel hazards from temporary generators.
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Toolbox Topic
PORTABLE GENERATOR SAFETY TOOLBOX TALK
Duration
8–10 minutes
Date
Site / Area
Supervisor
Company
Participants
Document No
OBJECTIVE
Prevent electric shock, carbon monoxide exposure, fire and fuel hazards during portable generator use.
WHY IT MATTERS
Portable generators create electrical power but also introduce carbon monoxide, hot-surface, noise and flammable-fuel hazards.
Exhaust can travel through nearby doors or openings, exposing workers to odourless carbon monoxide without warning.
Damaged leads, poor grounding or missing RCD/GFCI protection significantly increase electric-shock risk.
Refuelling while the engine is running or still hot can ignite spilled fuel on hot surfaces.
Generator location must consider exhaust direction, ventilation, weather protection and interaction with pedestrians or vehicles.
REALISTIC SITE SCENARIO
A portable generator was positioned near the entrance of a semi-enclosed container for temporary work.
The operator considered the unit to be outdoors, but wind carried exhaust back inside.
Workers inside began experiencing headache and discomfort.
Locating the generator in open air away from doors and air intakes, together with CO-risk assessment, would have prevented the exposure.
REMEMBER
Never operate a generator inside an enclosed or poorly ventilated area.
KEY HAZARDS
Electric shock.
Carbon monoxide.
Fuel fire.
Hot surfaces.
Damaged cables.
Incorrect grounding.
Water exposure.
Noise.
CONTROLS
Position generators outdoors with ventilation.
Verify grounding requirements.
Use RCD/GFCI protection.
Inspect electrical leads.
Protect equipment from water.
Stop and cool the engine before refuelling.
Store fuel in approved containers.
Provide fire extinguishers.
Direct exhaust away from workers.
Apply hearing protection.
SUPERVISOR MESSAGE
Team, a generator is not just a power source. We will control exhaust and carbon-monoxide exposure, verify electrical protection, keep fuel away from hot equipment and position the unit safely away from occupied areas.
TEAM QUESTIONS
Where will the generator be located?
Is grounding suitable?
Is RCD protection installed?
Where is exhaust directed?
How will refuelling be done?
Is a fire extinguisher available?
FIELD VERIFICATION
Location suitable
Ventilation adequate
Grounding suitable
RCD installed
Cables sound
Water controlled
Fuel safe
Extinguisher available
Exhaust safe
Crew briefed
ATTENDANCE AND APPROVAL
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Supervisor Signature
HSE Approval
SERNEM HSE Resource – Permit conditions, risk assessments and site procedures take priority.