Global | June 3, 2025

Jeff Davis: Seven ways to make switchboards safer

From arc containment to remote operation, these expert-approved safety upgrades can help utilities prevent arc faults and protect workers from serious harm.

 

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Image for illustrative purposes

Electricity powers our homes and businesses but working with electrical systems comes with real risk – especially when it involves switchboards, which are central to power distribution across Australia. One of the most dangerous hazards in these systems is an arc fault – a sudden release of electrical energy that can cause severe burns, equipment damage, and even fires.

For utilities, the stakes are high: they are not only tasked with maintaining reliable service but also with keeping their workers safe. So how can they reduce arc fault risks?

Jeff Davis, NHP Channel Manager – Regulatory and standardisation, offers practical solutions. With decades of experience on national standards committees, Davis outlines seven essential steps to improve switchboard safety:

  1. Use arc fault-contained switchboards – Systems like NHP’s CUBIC modular switchboard are built to contain faults when doors and covers are secured.
  2. Add polycarbonate covers – These reduce exposure at busbars and connection points.
  3. Choose fast-reacting circuit breakers – Products like the Terasaki TemPower 2 act in milliseconds to stop faults.
  4. Install photo-optic arc sensors – Devices like ArcLogix detect light from arc events and trigger circuit breakers instantly.
  5. Segment circuits with moulded case breakers – Limiting fault spread increases safety.
  6. Automate high-risk operations – Tools like TemRack iR enable remote ACB racking to avoid direct exposure.
  7. Use live line indicators – Systems like REMLIVE give clear visual alerts that circuits are live.

These preventive strategies, focused on eliminating risk at the source, represent the highest standard in workplace safety. For utilities and other energy sector players, implementing them is not just smart – it is essential.

Source: Utility Magazine