Inspection Detail

Inspection: 120132451 - Ninteman Construction

Inspection Information - Office: San Diego District Office

Inspection Nr: 120132451

Report ID: 0950632

Date Opened: 10/21/1994

Site Address:
Ninteman Construction
San Diego State
San Diego, CA 92115

Mailing Address:
4375 Jutland Dr #200, San Diego, CA 92117

Union Status: NonUnion

SIC:1541

NAICS: 0

Inspection Type: Accident

Scope: Complete

Advanced Notice: N

Ownership: Private

Safety/Health: Safety

Close Conference: 10/26/1994

Emphasis:

Case Closed: 12/02/1994

Related Activity
Type	Activity Nr	Safety	Health
Accident	362249443

Investigation Summary

Investigation Nr: 171004831

Event: 10/12/1994

ELECTRIC SHOCK - GROUND FAULT IN ELECTRIC DRILL

A construction company was building a basement for a new university library. One of the employees on the site lifted a 240-volt concrete drill (Model DM-1186) so that he could hand it to a coworker. He was standing on dry ground at the time. As he placed his hand on a strongback's steel screw to raise the drill to the coworker, he received an electric shock. He was knocked unconscious, but regained consciousness on the way to the hospital. Two other employees had been using the drill the day before and did not experience any problems. The circuit was examined by Bell Electric Company after the accident. It found that there was insufficient continuity in the equipment grounding conductor between a portable outlet box and its source of supply because of dust and dirt accumulation inside the cable connector.

Keywords: UNCONSCIOUSNESS, ELECTRICAL, E C, GROUND FAULT, CORD CONNECTOR, EQUIPMENT GROUNDING, ELECTRIC SHOCK, ELECTRIC DRILL

Investigated Inspection
#	Inspection	Age	Sex	Degree of Injury	Nature of Injury	Occupation
1	120132451			Non Hospitalized injury	Electric Shock	Carpenters

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