Arc Flash Inflicts Serious Electrical Burns

Published 30 Apr 2019

Arc Flash Inflicts Serious Electrical Burns- HSE Image Of Accident Scene

Arc Flash Inflicts Serious Electrical Burns- HSE Image Of Accident Scene

By Grant Prior for Construction Enquirer
Construction Enquirer

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Arc Flash

Two companies have been fined after a worker received serious electrical burns caused by an arc flash during demolition work.

Chelmsford Magistrates Court heard how on April 12 2017, two demolition workers employed by sub-contractor R B Haigh & Sons were removing electrical distribution equipment from a switchgear room at the former Molecular Products site in Thaxted, Essex.

Alan Banks had been told by the principal contractor that the electrical equipment had been isolated. To reassure his colleague that it was safe he threw a crowbar at the 400V ac equipment.

This came into contact with live exposed wires, causing a flashover and temperatures of several thousand degrees, followed by a subsequent fire.

As a result Banks suffered serious burn injuries and was immediately hospitalised.

An HSE investigation found that the task being undertaken had not been properly planned and suitable control measures were not implemented to ensure the isolation of the electrical power supply.

The principal contractor, A J Wadhams & Co Ltd failed to follow the clear procedures outlined in their risk assessments and method statements, which identified all equipment must be treated as live unless written authorisation proved otherwise.

Russell Haigh and Stuart Haigh (Partners of R B Haighs & Sons) of Thaxted, Essex, pleaded guilty to safety breaches and were fined £80,000 and ordered to pay costs of £3882.65. 

AJ Wadhams & Co Limited trading as Wadham Homes of London also pleaded guilty to safety breaches and was fined £80,000 and ordered to pay costs of £3816.60.

After the hearing HSE inspector Adam Hills said “This incident has had a significant impact on Mr Banks life and the injuries could so very easily have been fatal.

“Had the companies followed the control measures outlined in their respective risk assessments, then this incident would not have occurred.

“Never assume that an electrical supply is disconnected. Always check with the Distribution Network Operator or a qualified electrician to obtain written proof of isolation before commencing work.”

ARC FLASH STATISTICS

  • 30,000 Arc flash incidents per year
  • 7,000 Burn injuries per year
  • 2,000 Hospitalisations per year
  • 400 Fatalities per year
“30,000 Arc Flash Incidents per year” Source: ISHN

“30,000 Arc Flash Incidents per year” Source: ISHN

How To Protect Yourself Against Arc Flash

Arc flash protection is provided by specialist clothing and garments for “head-to-toe” protection – everything from arc flash coveralls to arc flash trousers.

Enhanced and effective arc flash protection is safely achieved by wearing layers of protective clothing and garments manufactured from inherent fibres and which feature specific Arc Flash resilient components. Without the correct high-quality garments, arc protection levels will be compromised.

Further Reading

Arc Flash

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