Understanding Electrical Hazards

Electrical injuries can occur not only from high voltages but also from lower voltages, such as those in batteries like UPS systems. The severity of injury depends on various factors including the path of electricity through the body.

Electrical hazards include sparks from batteries and mobile phones that can ignite flammable substances. Both Alternating Current (AC) and Direct Current (DC) can cause:

• Electric shock
• Electrical burns
• Loss of muscle control
• Thermal burns

Legal Responsibilities

Under UK law (Health and Safety at Work Act 1974 in Great Britain and Health and Safety at Work (Northern Ireland) Order 1978), employers are responsible for ensuring the safety and health of employees and the public at risk from work activities, including electrical safety.

Guidelines for Safe Working with Electricity

When working with or near electricity, follow these guidelines to mitigate risks:

• Complete a risk assessment covering electrical hazards before starting work.
• Identify and recognise electrical wires and cables in the work area, including overhead power lines and buried cables.
• Use a cable locator before digging or cutting into surfaces to find buried services.
• Work away from electrical wiring whenever possible; if near, request the electrical supply to be turned off.
• If the electrical supply cannot be turned off, consult a competent person for advice.
• Install danger notices where live electrical circuits are present; inform colleagues of safe working areas.
• Be vigilant for electrical danger signs and hazards, even if not clearly marked.
• Before drilling or cutting, inspect both sides of surfaces for electrical wires and other hazards.
• Use suitable protective clothing and equipment to minimise risks.
• If unsure or in doubt, stop work and consult a competent person.
• Ensure electrical power stays off until work is completed; maintain control of switches and keys.

Remember, safety is paramount when working with electricity. Always prioritise caution and adherence to safety protocols to prevent accidents and injuries.