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November 7, 2010

The Dangers of Hot Work

The Department of Labour has published booklet on hot work from which I have taken these incidents:
"An engineer was killed when a 6000-litre tank exploded when he lit a welding torch to repair a seam in the tank. The tank was moved 30 metres in the explosion, and an observer who was standing 2 metres away was thrown to the ground by the blast. The tank had been flushed with water for three days prior to the explosion but this did not remove all the explosive substances.
• A worker was attempting to remove the lid of a 200-litre container that had previously contained lacquer thinners. The drum, which had both bungs in place when the worker applied heat to the lid, hit the roof of the building 6 metres up. The worker received bruising to his hand.
• While removing a cleaning bung from a 70-litre stainless steel boat fuel tank, a worker passed a heated soldering iron over the bung hole. The petrol fumes ignited, throwing the worker on the floor.
• A worker, who had a few moments spare time, began cutting a 200-litre drum to makes a barbecue. He was unaware of the contents of the drum, which exploded when the torch began the cut. He received minor injuries in the incident.
• A worker passed a gas torch to his colleague over the open lid of a bitumen tank, causing an explosion. The worker, who was on top of the tank, received 10% burns to his face and left hand and his leg was broken in three places. The worker on the other side of the tank escaped injury.
• A welding contractor was attempting to fit a tap into a 5000 litre tank. A cut had been started in one end of the tank when it exploded. The tank was turned around and
flipped over. The opposite end of the tank was blown approximately 42 metres, soaring over a stand of trees 12 metres high and landing in a vacant section. The contractor received cracked ribs, a dislocated shoulder, injuries to his collar bone and severe bruising all oyer the body.
There has been no let-up in accidents and many more examples could be given. Remember, all accidents of this type are potentially fatal. Don’t let it happen to you!"

See the booklet in this link(pdf file)

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