NASA-LLIS-0986

NASA - National Aeronautics and Space Administration (NASA)

Lessons Learned – Tight scheduling and New Unfamiliar Equipment in Hazardous Environments

Organization:

NASA - National Aeronautics and Space Administration (NASA)

Year: 2001

Abstract: Description of Driving Event:
High voltage linemen were on very tight time constraints and were attempting to measure the voltage in a 15kV fuse cabinet. They were going to measure the voltage from phase to ground of approximately 7630 volts. The equipment they were using is engineered to contact high power lines or transformers out in the open for direct readings. The linemen had contacted the phase conductor with one probe of the test meter and were attempting to make contact with a ground point in the fuse cabinet of the transformer when an electric flash occurred, indicating a ground fault. The ground fault went through and out of the back of the meter ground faulting to the cabinet enclosure. No one was injured but the fault caused an immediate interruption of power to the site electric feeder.

URI: http://yse.yabesh.ir/std;jsery=autho162s7D8308/handle/yse/186949

Subject: Configuration Management

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NASA - National Aeronautics and Space Administration (NASA)

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contributor author	NASA - National Aeronautics and Space Administration (NASA)
date accessioned	2017-09-04T18:04:04Z
date available	2017-09-04T18:04:04Z
date copyright	08/01/2001
date issued	2001
identifier other	GFUEQCAAAAAAAAAA.pdf
identifier uri	http://yse.yabesh.ir/std;jsery=autho162s7D8308/handle/yse/186949
description abstract	Description of Driving Event: High voltage linemen were on very tight time constraints and were attempting to measure the voltage in a 15kV fuse cabinet. They were going to measure the voltage from phase to ground of approximately 7630 volts. The equipment they were using is engineered to contact high power lines or transformers out in the open for direct readings. The linemen had contacted the phase conductor with one probe of the test meter and were attempting to make contact with a ground point in the fuse cabinet of the transformer when an electric flash occurred, indicating a ground fault. The ground fault went through and out of the back of the meter ground faulting to the cabinet enclosure. No one was injured but the fault caused an immediate interruption of power to the site electric feeder.
language	English
title	NASA-LLIS-0986	num
title	Lessons Learned – Tight scheduling and New Unfamiliar Equipment in Hazardous Environments	en
type	standard
page	3
status	Active
tree	NASA - National Aeronautics and Space Administration (NASA):;2001
contenttype	fulltext
subject keywords	Configuration Management
subject keywords	Energy
subject keywords	Facilities
subject keywords	Fire Protection
subject keywords	Flight Equipment
subject keywords	Flight Operations
subject keywords	Ground Equipment
subject keywords	Ground Operations
subject keywords	Human Factors
subject keywords	Human Resources & Education
subject keywords	Industrial Operations
subject keywords	Lifting Devices
subject keywords	Packaging Handling Storage
subject keywords	Personal Protective Equipment
subject keywords	Pressure Vessels
subject keywords	Risk Management/Assessment
subject keywords	Safety & Mission Assurance
subject keywords	Test & Verification
subject keywords	Test Article
subject keywords	Test Facility
subject keywords	Training Equipment