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Scientific Article

Electric shocks during machine milking

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Pages 105-108 | Received 21 Nov 1974, Published online: 23 Feb 2011
 

Abstract

Extract

When electrically driven milking machines were first introduced, one of the problems they presented was due to the leakage of electricity into the teat cups. Some early machines had a chain drive from the motor to the vacuum pump. These were particularly liable to carry a voltage on the milk pipe, and in many cases this could be eliminated by the use of an insulated V-belt drive. Despite improvements in machine and shed design, electrical voltages on milking machines continue. CitationPhillips (1962) reported finding plant voltages from 0 to 20, with the majority in the range 3 to 10 volts in the Waikatoi and Taranaki. A similar study carried out in New South Wales (CitationWhittlestone and Harper, 1962) showed voltages ranging from 0 to 16.

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