NEWCASTLE MUNICIPALITY Safety at work Presented to AMEU Convention 15-17 October 2007 Presented by R.J. Mallinson 1/2/2019 Newcastle Municipality
Newcastle Municipality And here are the winners of the competition: SAFETY AT WORK 1/2/2019 Newcastle Municipality
Newcastle Municipality 10th place 1/2/2019 Newcastle Municipality
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Newcastle Municipality 9th place 1/2/2019 Newcastle Municipality
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Newcastle Municipality 8th place 1/2/2019 Newcastle Municipality
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Newcastle Municipality 7th place 1/2/2019 Newcastle Municipality
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Newcastle Municipality 6th place 1/2/2019 Newcastle Municipality
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Newcastle Municipality 5th place 1/2/2019 Newcastle Municipality
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Newcastle Municipality 4th place 1/2/2019 Newcastle Municipality
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Newcastle Municipality 3rd place 1/2/2019 Newcastle Municipality
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Newcastle Municipality 2nd place 1/2/2019 Newcastle Municipality
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Newcastle Municipality And the WINNER is….. 1/2/2019 Newcastle Municipality
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Newcastle Municipality Outside competition : „nec plus ultra“ 1/2/2019 Newcastle Municipality
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Newcastle Municipality LENNOXTON SUBSTATION Lennoxton Substation 1/2/2019 Newcastle Municipality
Newcastle Municipality MAIN EARTHS STOLEN Stealing of copper - Lennoxton Substation main earth Ground closed up very neatly Fault occurred on 11 February 2007 Fault through NER – no earth Check flash through 120mm concrete Installation of cctv camera’s 1/2/2019 Newcastle Municipality
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Newcastle Municipality CONCLUSION Do not accept that the earth is intact Have it tested more regularly – With the shortage of staff it becomes more difficult We had the earths tested every 5 years We decided to have it tested annually After installation of camera’s we can go back to every 5 years. 1/2/2019 Newcastle Municipality
Newcastle Municipality LENNOXTON NER FAULT After replacing all earth’s in February 2007 In May 2007 - Underground fault triggered a sequence of events Check flames appearing above ground Cables were 1,2 meter under ground Main problem – NER failed – This could have happened on 11 February 2007 1/2/2019 Newcastle Municipality
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Newcastle Municipality CONCLUSION CHECK – CHECK - CHECK NER resistor failed Severity of fault high due to no earth path Possible reason it was not checked and tested after first fault Check the protection and protection circuits after every fault Installation of cctv camera’s helped reducing cable theft 1/2/2019 Newcastle Municipality
Newcastle Municipality LIGHTNING STRIKE On 17 April 2007 lightning struck one of our 132 KV substations Bushing exploded Oil and pieces of the insulator scattered 1/2/2019 Newcastle Municipality
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Newcastle Municipality CONCLUSION It some times happens that you have to do maintance on substations and overhead lines Thunder storms develop while still busy Do not let staff work in substations when lightning is around Do not let staff work on overhead lines when lightning is around 1/2/2019 Newcastle Municipality
Newcastle Municipality QUESTIONS ? 1/2/2019 Newcastle Municipality