Why is wiring insulation so important?

The phrase ‘out of sight, out of mind’ is pretty accurate when it comes to wiring since so much of it is hidden in a building’s walls and ceilings.

But while you might not be able to see a lot of your wiring, it is a vital part of your electrical infrastructure, and it shouldn’t be neglected. Looking after your wiring (and the insulation around it) can prevent all sorts of electrical problems and safety hazards.

The importance of insulation

It might be the wiring that does the important job of conducting power to where we need it, but wiring insulation also plays a vital role in keeping you safe and operational.
Insulation on wiring acts as a barrier, protector, and stabiliser for electrical systems, safeguarding people, property, and equipment from potential hazards while maintaining optimal energy efficiency and system integrity.

Protects against electrical shock and hazards

Live wires carry an electrical current from one place to another and exposure to these currents can cause dangerous (and sometimes fatal) electric shocks. Insulation creates a protective barrier around the wire, which reduces the risk of accidental contact.

Prevents short circuits and risk of fire

When two live wires touch each other or another conductive surface, it creates an unintended current path. This is known as a short circuit and can lead to circuit damage, overheating, fire and even explosion if there are flammable materials nearby. Insulation stops wires from touching each other.

Protects equipment

Short circuits can also cause equipment damage, which can lead to additional repair or replacement costs and operational disruption. By reducing the likelihood of short circuits through the use of wiring insulation, you protect your electrical systems.

Reduces energy loss

Good insulation keeps electricity flowing along the intended path and reduces leakage currents that could cause energy loss. In energy-sensitive applications, this is especially critical for ensuring the efficient use of electricity.

Protects wiring against the elements

Insulation protects wires from moisture, heat, chemicals, and mechanical damage, which can degrade your wiring. This is especially important in industrial, outdoor, or harsh environments where exposure to these elements is common.

Prolong wiring lifespan

Insulation acts as a barrier, shielding your wiring from wear and tear and slowing down degradation.

Ensures compliance

Electricity is dangerous, which is why there are so many regulations and standards surrounding the use of electricity, particularly in industrial and commercial settings. Your wiring insulation must comply with regulations. If it doesn’t, you are not only putting your workers at risk, but you could be breaking the law.

Is it time to get your wiring inspected?

Most manufacturers are required to undergo fixed wire testing at least every five years to ensure their EICR is up to date. Maintaining an up-to-date EICR ensures you comply with the Health & Safety at Work Act (1974) and the Electricity at Work Regulations (1989).

If your wiring is no longer compliant and doesn’t meet current safety standards, it’s time for an upgrade.

However, safety standards aren’t the only reason you should get your wiring inspected. If you’re experiencing any electrical issues, you could have a problem with your wiring or the insulation around it.

Frequent electrical surges: When wiring is damaged or exposed, it offers little electrical resistance, meaning any conductive material can spike the wire’s current.

Circuit breaker trips: Repeated tripping of circuit breakers could be caused by faulty wiring. If a circuit is overloaded, the wiring will heat up, causing the circuit breaker to trip.

Burning odours or smoky residue: Unusual burning odours or smoky residues near outlets or electrical panels can indicate that wiring is overheating, which could lead to circuit damage, electrical fires, and equipment failure.

Hot switches or outlets: If an outlet is hot to the touch, unplug any equipment – you may be overloading the socket. But if an outlet heats up even when nothing is plugged in, this usually indicates a wiring issue.

Buzzing, crackling or sparking: Audible buzzing, crackling, or sizzling sounds coming from outlets or panels could indicate loose or damaged wiring.

Flickering lights: Lights that are consistently flickering or dimming could indicate loose connections, inadequate wiring, or potential hazards.

Visibly damaged insulation: Most wiring is hidden so it’s hard to spot damage. However, if you can see any exposed wires, frayed cables, or deteriorating insulation, this should be addressed.

Diminished equipment performance: If your machinery or equipment experiences reduced performance, it could be linked to an inadequate power supply caused by faulty wiring.

Frequent equipment failures: Frequent breakdowns or faults of factory equipment could indicate inconsistent power delivery due to wiring issues.

Work with AES

If something goes wrong with the power in your factory, you’ll want an electrical contractor you can trust to get you back up and running quickly and safely.

AES offers all the electrical contracting services you would expect, coupled with specialist services specifically for manufacturing businesses.

We can test, inspect and rectify faulty wiring, install and maintain electrical equipment and lighting, and perform routine maintenance and repairs. We are also CompEx accredited, allowing us to work in hazardous areas.

We can scale our services to meet the needs of your business, from ongoing planned maintenance and fault repair to machinery installation and factory relocation.

And we provide expert advice and recommendations on energy reduction, control and automation, and safety compliance.

Contact our friendly team to discuss your electrical requirements.