Loss of Grounding on Commercially Available Equipment
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Type:  Lessons Learned

Publisher:  Oak Ridge National Laboratory, Oak Ridge, TN

Date: 

Topics:  Electrical, Laboratory

A lab technician experienced a minor shock to the hand when disconnecting a metal vacuum hose between a Pfeiffer Model TXH-071 turbo cube vacuum station and a grounded test chamber. The source of the minor shock was originated from the vacuum station. It was discovered that a ground wire had pulled from its intended termination causing a loss of ground. The equipment had not been modified and was being used as intended.

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