OSHA Accident Investigation · Summary #14527204

VOLTAGE BACKFEED,ELEC PROTECT EQUIP,ELECTRICAL,ELECTROCUTED,LOCKOUT,E PTD,ELEC UTILITY WORK,TRANSFORMER

1985-11-21T00:00:00

Event: VOLTAGE BACKFEED,ELEC PROTECT EQUIP,ELECTRICAL,ELECTROCUTED,LOCKOUT,E PTD,ELEC UTILITY WORK,TRANSFORMER
Linked inspection: No inspection record linked to this accident's victims.
Summary number: 14527204
Report ID: 419400

Event description

ELECTRIC SHOCK - VOLTAGE BACKFEED IN TRANSFORMER

Investigation abstract

AN EMPLOYEE WAS WORKING ON A DEENERGIZED 110-KILOVOLT-AMPERE TRANSFORMER. THE TR ANSFORMER WAS SUPPLIED WITH 240 VOLTS TO POWER THE TAP CHANGER, AND THE VOLTAGE FED BACK THROUGH THE TRANSFORMER. THE EMPLOYEE WAS CONNECTING A METER TO THE HIG H AND LOW VOLTAGE SIDES OF THE TRANSFORMER WHEN HE MADE CONTACT WITH THE NEUTRAL AND PHASE CONDUCTORS, RESULTING IN HIS ELECTROCUTION.

Victim

#1 Fatality Age 37 M

Nature of injury
10

Part of body
4

Event type
13

Source
15

Occupation code
577

Human factor
1

Environmental factor
18

Task assigned
1

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