Court Summary - at a glance
- To have ensured an adequate site specific risk assessment was undertaken for this berm substation;
- The work at the Old Karori Road substation should have been undertaken with the substation de-energised.
On 27 May 2014, a trainee worker for the defendant was the victim of an arc flash event caused during the decommissioning of bias panel equipment at a berm substation. The decommissioning work was conducted adjacent to live components. The victim supported the bias-panel transformer while another worker unbolted it. As the victim moved the transformer a support bracket behind it became dislodged and fell into the live 400V terminal connections. This resulted in an arc flash; a short circuit which releases an uncontrolled burst of energy.
The victim was seriously harmed, sustaining deep burns to the thigh and superficial burns to the face, buttocks and upper legs.