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National Grid Gas fined after worker seriously injured

National Grid Gas has been fined after an employee suffered serious leg injuries when gas was released at high pressure during maintenance work at Diss Compressor Station, Norfolk.

The worker, who does not wish to be named, was working on temporary pipework attached to a recompression unit, which suddenly released trapped gas at high pressure.

His right leg was fractured, requiring surgery and a steel plate to repair the damaged bone. He was in hospital for seven days and unable to return to work for several months.

Norwich Magistrates’ Court heard that the main purpose of the recompression unit was to depressurise and isolate a feeder pipe so safe repairs could be completed at Stowmarket and Diss compressor stations.

However, an investigation by the Health and Safety Executive revealed a failure to follow Non-Routine Operation (NRO) procedure, together with a lack of proper planning and control resulting in an inadequate system of work for such a high risk procedure.

National Grid Gas, registered at 1-3 The Strand, London, was fined £20,000 and ordered to pay £9,846 costs after pleading guilty to breaching Section 2(1) of the Health and Safety at Work etc Act 1974.

After the case, HSE inspector Duraid Alkazraji said: “Given the high pressure gas release which occurred during this maintenance work, this worker could easily have been more seriously injured.

“HSE’s investigation identified key issues in National Grid Gas’ maintenance procedures – an inadequate safe system of work, a failure to sufficiently plan or control the work and a failure to follow a dedicated procedure for high risk work.

“On this occasion their failings led to serious leg injuries to one of their experienced employees.”

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