Introduction
Electricity is part of everyday work for electricians, electrical apprentices, refrigeration technicians, maintenance staff, solar workers, facilities teams and many trades across Western Australia. Because low voltage electricity is so common, it can be easy to underestimate the danger.
But even a “small” electric shock can be serious.
A person does not need to be exposed to high voltage powerlines for an electrical incident to become life-threatening. Low voltage electrical contact can cause burns, muscle contraction, falls, breathing problems and dangerous disruption to the heart’s rhythm. In some cases, electric shock can trigger ventricular fibrillation, a life-threatening condition where the heart quivers instead of pumping blood effectively.
This is why Low Voltage Rescue training is so important.
The nationally recognised unit UETDRMP018 – Perform rescue from a live low voltage panel equips workers with the skills and knowledge to respond safely to an electrical incident involving live low voltage equipment. When combined with CPR training, Low Voltage Rescue helps workers understand not only how to rescue someone from danger, but how to respond if the person collapses or goes into cardiac arrest.
For electricians and electrical workers in Perth, completing a recognised Low Voltage Rescue Course is not just about compliance. It is about knowing what to do when seconds matter.
What Is Low Voltage Rescue?
Low Voltage Rescue, often called LVR, refers to the process of safely rescuing a person from live low voltage electrical apparatus.
The key word is safely.
In an electrical emergency, the first instinct may be to rush in and grab the person. That instinct is dangerous. If the casualty is still in contact with live electrical equipment, touching them directly may cause the rescuer to become part of the electrical circuit.
Low Voltage Rescue training teaches workers how to:
- Assess the scene before acting
- Identify electrical hazards
- Isolate power where possible
- Use appropriate rescue equipment
- Remove a casualty from danger without becoming injured
- Provide CPR if required
- Use an AED if available
- Follow workplace emergency procedures
The unit UETDRMP018 specifically relates to rescue from live low voltage electrical apparatus in an electrical industry environment. It does not cover overhead lines or underground cables, which require separate controls and procedures.
What Does “Low Voltage” Mean?
In electrical work, the term “low voltage” can sound misleading. Many people hear “low” and assume “safe”.
That is not the case.
Low voltage can still cause serious injury or death. In workplaces, low voltage equipment may include switchboards, panels, electrical cabinets, appliances, machinery, solar systems and other electrical installations.
A low voltage shock can still pass current through the body. If the current travels across the chest, it may interfere with the heart’s electrical system.
That is why electrical workers must treat low voltage environments with respect. The risk is real, and the consequences can be severe.
How Electrical Shock Affects the Body
Electric shock injuries vary depending on several factors, including:
- The amount of current
- The pathway through the body
- The duration of contact
- Skin condition
- Moisture
- Type of current
- The person’s health
- Whether the person is thrown or falls after contact
Electricity may affect the body in different ways.
1. Muscle Contraction
Electrical current can cause muscles to contract suddenly. This may make it difficult or impossible for a person to let go of the live source. This is sometimes referred to as a “no-let-go” situation.
In a workplace, this can quickly become life-threatening because the person remains connected to the source of electricity.
2. Burns
Electrical burns may occur at the entry and exit points of the current. However, visible burns do not always show the full extent of injury. Internal tissue damage may be more serious than what is seen on the skin.
3. Falls and Secondary Injuries
A person may be thrown backwards, fall from a ladder, strike their head, or suffer fractures after receiving a shock.
This means first aiders must consider more than the electrical injury alone. There may also be spinal injury, head injury, bleeding or fractures.
4. Breathing Problems
Electric shock may interfere with the muscles involved in breathing. If breathing stops or becomes abnormal, the person requires immediate emergency care.
5. Heart Rhythm Disturbance
This is one of the most serious risks. Electrical current can interfere with the heart’s natural rhythm, potentially causing cardiac arrest.
Can a Small Electrical Shock Cause Fibrillation of the Heart?
Yes, it can.
The heart runs on electrical signals. These signals control the heartbeat and allow the heart to pump blood around the body. When external electrical current passes through the body, especially across the chest, it may disrupt those signals.
One dangerous rhythm is ventricular fibrillation, often shortened to VF.
In ventricular fibrillation, the heart does not pump properly. Instead, it quivers in an uncoordinated way. Blood flow to the brain and vital organs can stop rapidly. Without immediate CPR and defibrillation, ventricular fibrillation can be fatal.
This is why even a shock that appears minor should never be ignored.
A person may initially seem alert, then deteriorate later. They may complain of chest discomfort, palpitations, dizziness, shortness of breath, burns, weakness, confusion or collapse. If there is any concern after an electric shock, medical assessment is important.
Electrical injuries can be deceptive. The visible injury may look small, while internal effects may be serious.
Fibrillation vs Defibrillation: What Is the Difference?
These words are often confused, so it is worth making them clear.
Fibrillation
Fibrillation is an abnormal heart rhythm. In ventricular fibrillation, the heart quivers instead of pumping effectively. This is a life-threatening emergency.
Defibrillation
Defibrillation is the treatment. An Automated External Defibrillator, or AED, analyses the heart rhythm and may deliver a shock if needed.
The purpose of defibrillation is to try to restore a normal rhythm so the heart can pump effectively again.
In simple terms:
- Fibrillation = dangerous heart rhythm
- Defibrillation = treatment using an AED
Low Voltage Rescue courses often include CPR because rescuing the casualty is only the first step. If the person is unresponsive and not breathing normally, CPR and AED use may be needed immediately.
Why You Must Not Touch the Person Until It Is Safe
In an electrical emergency, one of the most important rules is:
Do not touch the casualty while they are still in contact with electricity.
This is because the rescuer can also receive an electric shock.
Instead, the priority is to make the scene safe. This may include:
- Turning off the power supply
- Isolating the electrical source
- Using appropriate low voltage rescue equipment
- Keeping bystanders away
- Calling emergency services
- Following workplace procedures
If the power cannot be isolated immediately, trained workers may need to use approved rescue equipment to move the casualty away from the source without direct contact.
This is exactly why practical Low Voltage Rescue training matters. In a real emergency, hesitation and panic are common. Training helps workers act with structure and control.
What to Do in a Low Voltage Electrical Emergency
The following is general information only and does not replace formal training. Electrical rescue should only be attempted by trained people using appropriate rescue procedures and equipment.
1. Stop and Assess for Danger
Before helping anyone, check for danger.
Ask:
- Is the person still touching live equipment?
- Is there water nearby?
- Are there exposed wires?
- Is the panel still energised?
- Is there fire, smoke or arc flash risk?
- Are other workers nearby and at risk?
A rescuer who becomes injured creates a second casualty.
2. Send for Help
Call 000 immediately if someone has received an electric shock, collapsed, is injured, has burns, has chest symptoms, or is unresponsive.
In a workplace, activate emergency procedures and notify supervisors as required.
3. Isolate the Power
Where possible, turn off the electrical supply.
This may involve:
- Switching off power
- Using an emergency stop
- Isolating at the switchboard
- Following lockout/tagout procedures
Only do what you are trained and authorised to do.
4. Use Low Voltage Rescue Equipment
If the person cannot be safely reached or power cannot be isolated immediately, trained workers may use appropriate rescue equipment.
This may include items such as a low voltage rescue kit, insulated rescue crook and other equipment required by the workplace.
Never improvise with unsafe materials.
5. Move the Casualty to Safety
Once the casualty is no longer in contact with the electrical source, move them only as far as necessary to provide care safely.
Be aware of possible spinal injury, burns, fractures or falls.
6. Check Response and Breathing
Use the DRSABCD action plan:
- Danger – check the scene is safe
- Response – check if the person responds
- Send for help – call 000
- Airway – open and clear the airway
- Breathing – check for normal breathing
- CPR – start CPR if not breathing normally
- Defibrillation – use an AED as soon as available
7. Start CPR if Required
If the person is unresponsive and not breathing normally, start CPR.
Push hard and fast in the centre of the chest and continue until emergency services arrive, the person recovers, or you are physically unable to continue.
8. Use an AED
If an AED is available, turn it on and follow the voice prompts.
Do not touch the person while the AED is analysing or delivering a shock.
AEDs are designed to guide rescuers step by step.
Why CPR Is Included With Low Voltage Rescue Training
Electrical shock can lead to sudden cardiac arrest. This is why Low Voltage Rescue and CPR are closely linked.
A worker may successfully rescue a casualty from a live panel, only to find they are unresponsive and not breathing normally. At that point, rescue alone is not enough. The person needs CPR and possibly defibrillation.
CPR helps maintain blood flow to the brain and vital organs. An AED may help correct certain dangerous heart rhythms, including ventricular fibrillation.
The sooner CPR and defibrillation occur, the better the chance of survival.
For this reason, many Low Voltage Rescue courses are delivered with CPR training, such as HLTAID009 Provide Cardiopulmonary Resuscitation.
Why Electrical Workers Need UETDRMP018
The nationally recognised unit UETDRMP018 – Perform rescue from a live low voltage panel is designed for workers who may need to respond to electrical incidents involving live low voltage apparatus.
This includes people such as:
- Electricians
- Electrical apprentices
- Electrical contractors
- Refrigeration and air conditioning technicians
- Solar workers
- Maintenance workers
- Facilities staff
- Workers near live switchboards or panels
The training is practical because electrical emergencies are high-risk and time-critical.
Participants learn how to apply safety procedures, use rescue equipment, assess hazards and respond appropriately after an incident.
Low Voltage Rescue Courses in Perth
For workers and businesses in Western Australia, completing a Low Voltage Rescue Course in Perth helps support workplace safety and compliance.
First Aid Certified offers Low Voltage Rescue training options that combine essential electrical rescue skills with CPR and first aid pathways, including:
- HLTAID009 & UETDRMP018 – Provide Cardiopulmonary Resuscitation & Low Voltage Rescue
- HLTAID011 & UETDRMP018 – Provide First Aid & Low Voltage Rescue
These courses are designed to help workers gain practical, hands-on skills for real emergency situations involving low voltage electrical equipment.
For workplaces, LVR training supports safer systems of work and helps ensure staff are prepared if an electrical incident occurs.
Common Myths About Low Voltage Electrical Shock
Myth 1: “It was only a small shock, so it’s fine.”
Not always. Even low voltage shocks can affect the heart, especially if the current passes through the chest.
Myth 2: “If there are no burns, there is no serious injury.”
Electrical injuries may be internal. Burns can be small or hidden.
Myth 3: “I can just pull them away.”
Never touch a person who may still be connected to electricity. Isolate the power or use appropriate rescue equipment if trained.
Myth 4: “CPR is separate from electrical rescue.”
In reality, CPR is a critical part of responding to electric shock emergencies. Cardiac arrest can occur suddenly.
Myth 5: “Only electricians need Low Voltage Rescue training.”
Electricians are a major group, but other workers near live electrical equipment may also need LVR training depending on their role and workplace risk.
What Should Be in a Low Voltage Rescue Kit?
Workplaces should follow relevant workplace procedures and electrical safety requirements. A Low Voltage Rescue kit may include equipment such as:
- Insulated rescue crook
- Insulating gloves
- Fire blanket
- Torch
- Signage
- Instructions or emergency guidance
- Other workplace-required rescue items
Equipment must be inspected, accessible and maintained.
Training helps workers understand not just what equipment exists, but how and when to use it safely.
After an Electric Shock: Why Medical Assessment Matters
Anyone who receives an electric shock may need medical assessment, particularly if they experience:
- Loss of consciousness
- Chest pain
- Palpitations
- Shortness of breath
- Burns
- Tingling or weakness
- Confusion
- Collapse
- Shock through the chest
- Pregnancy
- Known heart condition
Even if the person feels okay, symptoms can develop later.
When in doubt, seek medical advice.
Workplace Responsibilities
Electrical safety is a workplace responsibility, not just an individual responsibility.
Employers and persons conducting a business or undertaking should ensure:
- Electrical risks are identified
- Workers are trained
- Rescue equipment is available
- Emergency procedures are clear
- Electrical equipment is maintained
- Workers understand isolation procedures
- Refresher training is completed as required
Workers also have responsibilities. They must follow safe systems of work, use equipment properly, report hazards and avoid taking unsafe shortcuts.
A strong safety culture can prevent electrical incidents and improve emergency response when incidents occur.
Why Choose First Aid Certified for Low Voltage Rescue Training?
First Aid Certified delivers practical, hands-on training designed for real workplace emergencies.
Our Low Voltage Rescue Courses in Perth help participants build confidence in:
- Recognising electrical danger
- Performing a safe low voltage rescue
- Using appropriate rescue equipment
- Applying DRSABCD
- Performing CPR
- Using an AED
- Responding calmly under pressure
Training is especially valuable for electrical workers, apprentices, contractors and workplaces that need staff prepared for low voltage electrical emergencies.
SEO FAQ Section
What is UETDRMP018?
UETDRMP018 – Perform rescue from a live low voltage panel is a nationally recognised unit that covers the skills and knowledge required to perform a rescue from live low voltage electrical apparatus in an electrical industry environment.
Who needs Low Voltage Rescue training?
Low Voltage Rescue training is commonly completed by electricians, electrical apprentices, electrical contractors, refrigeration technicians, solar workers, maintenance workers and others who may work near live low voltage panels or electrical apparatus.
Can a low voltage shock stop the heart?
Yes. Low voltage electrical shock can interfere with the heart’s electrical rhythm and may contribute to life-threatening cardiac arrest. This is why CPR and AED training are so important.
What should you do if someone is being electrocuted?
Do not touch them while they are still in contact with electricity. Turn off the power if safe, call 000, use appropriate rescue equipment if trained, and provide CPR if they are unresponsive and not breathing normally.
Is CPR included in Low Voltage Rescue training?
Many Low Voltage Rescue courses include CPR training because electrical shock can cause sudden cardiac arrest. First Aid Certified offers course options combining UETDRMP018 with HLTAID009 Provide CPR and HLTAID011 Provide First Aid.
Conclusion
Low voltage electricity should never be underestimated. Even a shock that appears minor can cause serious injury, including disruption to the heart’s rhythm and possible cardiac arrest.
Knowing how to rescue someone safely is critical.
Low Voltage Rescue training teaches workers to pause, assess danger, isolate electricity where possible, use rescue equipment correctly, and provide CPR if required. For electrical workers and businesses in Perth, completing UETDRMP018 – Perform rescue from a live low voltage panel is an important step in building safer workplaces.
When electricity is involved, rushing in can be deadly.
Training gives workers the knowledge, confidence and practical skills to act safely when it matters most.
