Testing & Commissioning

Pre-Commissioning Inspection

A physical check of the installation before anything is energised, because problems are cheaper to find now.

Pre-commissioning inspection is the last opportunity to find an installation problem while the equipment is still safely de-energised. Everything after this point is testing with the primary circuit live or partially live.

It is a systematic physical check rather than a walk-past, and it produces a record of what was found and what was corrected.

What the inspection covers

  • Termination condition and tightness
  • Earthing and bonding continuity
  • Mechanical mounting and structural fixing
  • Cable condition, support and gland integrity
  • Phase identification and labelling
  • Enclosure sealing and IP integrity
  • Clearances to conductors, ground and structures

What matters in practice

  • Cheapest point to find a fault

    A loose termination found during inspection costs minutes. The same termination found after energising costs an outage, and possibly equipment.

  • Labelling is a safety issue

    The next person to work on this installation relies on the labelling being correct. Incorrect phase identification is a hazard, not an inconvenience.

  • Sealing before the first rain

    IP integrity is checked before handover, because water ingress into a control cabinet is discovered at the worst possible moment otherwise.

  • Recorded findings

    What was inspected, what was found and what was corrected goes into the commissioning record.

Need an installation inspected?

Tell us what you need and where the site is, and we will scope the work and quote it.