Treating Electrical Burns on the Worksite: A Step-by-Step First Aid Guide for Electricians

Treating Electrical Burns on the Worksite: A Step-by-Step First Aid Guide for Electricians

Electrical burns are one of the most serious injuries that can occur on an Australian worksite. They are also one of the most deceptive — the damage visible on the skin often tells only part of the story. Electrical current can travel through the body along the path of least resistance, causing deep tissue damage that is not immediately obvious.

For electricians, lineworkers, and other trades workers who work around live electrical systems, knowing how to respond correctly in the first minutes after an electrical burn occurs could be the difference between life and death. This guide walks through exactly what to do.

Why Electrical Burns Are Different From Other Burns

A standard thermal burn — from touching a hot surface or a flame — tends to cause damage that is confined to where the heat made contact. An electrical burn works differently. When current enters the body, it generates heat as it travels through tissues, causing damage along the entire path from entry to exit point.

This means a casualty with a small entry wound at their hand may have significant internal injuries extending up through the arm, shoulder, and into the chest. Internal organs, muscles, nerves, and blood vessels can all be affected, even when the external wounds appear minor.

According to Safe Work Australia, electrical injuries are among the leading causes of traumatic workplace fatalities in Australia. The risk is highest in the construction, utilities, and electrical trades sectors.

Step 1 — Make the Scene Safe Before You Approach

The most critical rule in electrical burn first aid is this: do not touch the casualty until you are certain the power source is isolated.

If a person is still in contact with a live electrical source and you touch them, current can pass through their body and into yours. This is how bystanders become casualties.

Before approaching:

• Turn off the power at the switchboard or mains if it is safe to do so.
• Do not use your hands to push or pull the casualty away from a live source — if the power cannot be isolated immediately, use a dry, non-conductive object such as a wooden plank or dry rope.
• If working on a high-voltage system or power lines, keep a safe distance and contact emergency services. Only qualified personnel with appropriate equipment should approach high-voltage hazards.

Step 2 — Call Triple Zero (000) Immediately

All electrical burns — even those that appear minor — require emergency medical assessment. Call 000 as soon as it is safe to do so, or have a colleague make the call while you attend to the casualty.

When speaking to the operator, tell them it is an electrical injury. This is important because paramedics need to know the mechanism of injury to prioritise cardiac monitoring and assess for internal trauma.

Step 3 — Assess the Casualty

Once the scene is safe and help is on the way, assess the casualty carefully. Electrical injuries can cause cardiac arrhythmias and respiratory arrest, so your first check should be:

• Is the person conscious and responsive? Call their name and tap their shoulder.
• Are they breathing normally? Look for chest movement and listen for breath sounds.
• Do they have a pulse? Check the carotid pulse at the side of the neck.

If the person is unresponsive and not breathing normally, begin CPR immediately and continue until paramedics arrive. Use an Automated External Defibrillator (AED) as soon as one is available — electrical injuries frequently cause ventricular fibrillation, and early defibrillation is critical to survival.

Step 4 — Treat the Burn Wound

If the casualty is conscious and breathing, attend to the burn itself:

• Cool the burn with cool running water for a minimum of 20 minutes. This is the Australian standard for burn first aid, as established by the Australian and New Zealand Burn Association (ANZBA). Do not use ice, iced water, butter, toothpaste, or any other substance.
• Remove jewellery and clothing near the burn site — unless it is stuck to the skin. Rings, watches, and metal items conduct heat and can cause continued burns.
• Do not burst blisters. The blister provides a natural barrier against infection.
• Cover the burn loosely with a sterile non-stick dressing once it has been cooled. Cling wrap laid flat (not wrapped tightly) is also acceptable as an interim cover.

Step 5 — Monitor for Signs of Systemic Injury

Even after treating the visible burn, keep a close eye on the casualty until paramedics arrive. Watch for:

• Chest pain, irregular heartbeat, or palpitations
• Confusion, dizziness, or loss of consciousness
• Muscle pain, cramps, or weakness along the path of the electrical current
• Difficulty breathing
• Numbness or tingling in the limbs

Keep the casualty still, warm, and calm. Do not offer food or drink — they may require surgery. Record what you observe and share this with the paramedics when they arrive.

Low-Voltage vs High-Voltage Injuries: Does It Matter?

Many workers assume that low-voltage injuries (under 1,000 volts — the range typical of most Australian worksites and domestic supplies) are less serious. While high-voltage injuries are more immediately destructive, low-voltage current at 50 Hz — Australia’s standard electrical frequency — can still cause fatal cardiac arrhythmias.

WorkSafe Victoria notes that electrical injuries from low-voltage systems account for a significant proportion of electrical fatalities each year. Do not treat any electrical burn as minor without a thorough medical assessment.

Your Legal Obligations Under WHS Law

Under Victoria’s Occupational Health and Safety Act 2004, and equivalent Work Health and Safety legislation across other Australian states, all employers have a duty to provide first aid equipment, trained first aiders, and access to emergency services.

Safe Work Australia’s First Aid in the Workplace Code of Practice sets out minimum requirements, including the number of trained first aiders required based on workforce size and the nature of the work. High-risk worksites — including those involving live electrical systems — typically require more comprehensive first aid provisions than lower-risk environments.

Ensuring your team includes personnel with current first aid certification is not just good practice. It is a legal obligation.

First Aid Training for Electrical Workers

Knowing what to do in theory is useful. Being able to do it calmly and correctly under pressure takes training and practice. First aid courses covering burns, CPR, and defibrillator use are directly relevant to trades workers, and certifications need to be kept current — first aid certificates must be renewed every three years, and CPR every 12 months, under Australian Resuscitation Council (ARC) guidelines.

If you or your team are overdue for renewal, or you want the confidence of knowing exactly what to do when something goes wrong on the job, book your first aid training with AB First Aid in Tullamarine. Our courses are practical, industry-relevant, and taught by trainers who understand real-world trades environments.

References

• Safe Work Australia — First Aid in the Workplace Code of Practice (2021): https://www.safeworkaustralia.gov.au
• WorkSafe Victoria — Electrical Safety: https://www.worksafe.vic.gov.au
• Australian and New Zealand Burn Association (ANZBA) — First Aid for Burns: https://anzba.org.au
• Australian Resuscitation Council (ARC) — Guidelines: https://resus.org.au
• Occupational Health and Safety Act 2004 (Vic)
• Work Health and Safety Act 2011 (Cth)