You and your home are protected several different ways throughout your electrical installation, all of these protections each serve a different purpose and together they keep you and your family safe.

Protective Devices

Basic Protection

This is the basic insulation of the cables, meaning that if you were to touch a cable, you would not receive an electric shock.

Overcurrent Protection

This is a device that will trip off or blow if too much current is passed through it. This could be in the form of a device at the beginning of your circuit, called an MCB (miniature Circuit Breaker) or an RCBO (Residual Current Circuit Breaker with Overcurrent Protection). It could also be a fuse or fuse wire in older installations.

Fault Protection

This is a device that will trip off if there is a fault on the system, MCB’s, RCBO’s and RCD’s (residual Current Detector) all do this.

Additional Protection

RCD’s are labelled as “additional protection”, which would imply that they are not as important, this is not to be the case. An RCD is a device this trips off at a measured current that is believed to be a “safe” amount, this amount is a tiny 30ma, and it trips off in 40 milliseconds. This is also believed to be a safe amount of time.
An RCD is there purely to prevent injury, death and Fire.

Surge Protection

SPD’s (Surge Protection Device) are a device that goes at the beginning of your installation to make sure that no “spikes” of electricity can surge through your installation, potentially damaging parts of the installation, or appliances that are plugged into it.

Arc Fault Protection

This is a new requirement that has been created by the most recent electrical regulations, AFDDs (Arc Fault Detection Device) will now need to be installed on each circuit, these devices detect any arc in your installation, this could be a broken cable, a lose connection, a faulty device that is plugged in/installed. This device very cleverly picks these up and isolates the circuit without picking up other devices that have components in them that have arcing in them.

Alto Electrical are Competent and Registered with the NICEIC, insured to £5Million, are reputable and approachable and offer great value for money. If you would like to discuss any queries you have regarding your rental property, would like to enquire about electrical testing or would like to book us in for a FREE QUOTATION, then call Kay in the office on 01778 772595.