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Lowdown on high and low voltage electrics

  • Jul 30, 2025
  • 2 min read

Updated: Sep 16, 2025



When it comes to powering your business, electrical systems aren’t just about functionality, they’re about safety, performance, and future readiness. Whether you’re running complex high-voltage infrastructure or day-to-day low-voltage systems, getting design, installation, testing, and maintenance right is essential.


Understanding high voltage installations


High voltage systems are critical to larger or more complex sites. They handle significant electrical loads and must be installed, tested, and maintained with absolute precision.


Full system installations

From transformers and switchgear to HV cabling, complete high-voltage installations need to be handled with strict attention to safety and compliance.


Testing and commissioning

Before any system goes live, it’s essential to carry out essential tests (including insulation resistance, earth resistance, and high-voltage withstand testing) to ensure everything is safe and operating as it should.


Preventative maintenance

Prevention is better than cure, as they say. Through thermal imaging, oil sampling, and switchgear inspections, potential faults can be identified before they disrupt your operations.


Fault finding and emergency repairs

If things go wrong, fast action is critical and a team of experts on hand to diagnose and resolve high-voltage faults quickly is critical.


Planned shutdowns and servicing

When it's time for upgrades or scheduled works, we can manage controlled shutdowns, isolations, and switchgear servicing.


Understanding low voltage installations


Low voltage systems are the backbone of most business environments, from lighting and sockets to IT infrastructure and safety systems.


Smart installations

Whether you need additional outlets or a full new system, careful design and holistic planning of low voltage solutions enable your system to be energy-efficient, reliable, and tailored to your space.


Testing and compliance

Take the hassle out of staying compliant and consider services like EICRs (Electrical Installation Condition Reports), portable appliance testing, and routine inspections to help you stay safe and meet legal requirements.


Data cabling

Fast, reliable connectivity is a must. With structured cabling, fibre optics, and server room infrastructure your digital systems will keep running smoothly.


Security and safety systems

From emergency lighting and fire alarms to CCTV and access control, protect your people, property, and peace of mind.


Futureproofing through upgrades and maintenance


Efficiency isn’t just good for the environment, it’s good for your bottom line by helping you reduce waste, improve safety, and stay ahead of growing energy demands.


Advice you can trust and support you can count on


No two sites are the same – and no two electrical systems should be either. Whether you’re upgrading a legacy setup or starting from scratch, the WBESS team is here to guide you through every step, from planning and installation to testing and long-term care.

Our friendly experts are here to help you make confident, informed decisions about the systems that keep your business running.

 
 
 

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