Electric current flowing from power sources, wiring and electrical devices can be powerful, causing harm to the human body and triggering destructive fires at home. Electrical systems have the potential to cause serious harm to people that come near it or to the occupants of the home. Incorrect handling of electric circuit, faulty wiring, and substandard electric systems can lead to electrocution, electric shock and severe burns unless electrical safety systems and devices are used.
About electric current in circuits
Electricity requires an unbroken flow of electric current, also known as a circuit, from the power source to the electronic appliance and back to the power source. Electric current also take on the shortest or easiest path from the source to the appliance or tool and back to the source. The human body acts like a conductor of electricity. When the flow of electric current is interrupted or lost, it may end up lost in the person nearest it, if it is the shortest path that the current can take. A large flow of electric current inside the body can affect the normal electrical signals between the brain and muscles, stopping the heart from beating, preventing breathing and muscle spasms.
Electrical safety switch
Electrical accidents may be fatal but can be prevented through the installation of electrical safety devices such as the safety switch. The safety switch monitors the amount of electricity flowing into the home and ensures that it flows out. “Lost” electricity or electric current that fails to flow out of the home can harm the home’s occupants. The safety switch works by detecting lost current and automatically cutting off power supply before injury or harm can occur.
Safety switches may be switchboard mounted, combined with a circuit breaker, attached to a power point on a circuit or portable. Switchboard mounted switches must be fitted to power and lighting circuits of new homes. It is usually located right beside the circuit breaker in the home’s switchboard and bears a distinctive button marked “test” to distinguish it from other devices at home.
Combination safety switches offer the same protection to electric circuits, appliances and personnel at home. This type of switch may be installed during the construction of the home to minimise labour costs.
Safety switches attached to a power point on a circuit are ideal for older homes and certain environments such as workshops and bathrooms.
Surge protector
The flow of electricity can change throughout the day and severe changes in the flow, such as a power surge or power loss, can seriously or permanently damage electrical equipment. Appliance manufacturers often require the installation of surge protectors as a condition for the coverage of their warranty.
Electrical safety at home is essential and homeowners need the expert services of a Master Electrician who can evaluate, recommend and install a safety switch and other devices. Check credentials, length of experience and guarantee for workmanship before choosing an electrician for home use.