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Inspection Detail
Inspection: 944520 - Hadco Corporation
Inspection Information - Office: Concord Area Office
Site Address:
Hadco Corporation
Rt 28
Derry, NH 03038
Mailing Address:
, , 00000
Union Status: NonUnion
SIC:3679
NAICS: 0
Inspection Type: Accident
Scope: Partial
Advanced Notice: N
Ownership: Private
Safety/Health: Safety
Close Conference: 03/18/1985
Planning Guide: Safety-Manufacturing
Emphasis:
Case Closed: 05/03/1985
| Type | Activity Nr | Safety | Health |
|---|---|---|---|
| Accident | 360569206 |
| Violations/Penalties | Serious | Willful | Repeat | Other | Unclass | Total |
|---|---|---|---|---|---|---|
| Initial Violations | 2 | 2 | ||||
| Current Violations | 1 | 1 | ||||
| Initial Penalty | $560 | $0 | $0 | $0 | $0 | $560 |
| Current Penalty | $200 | $0 | $0 | $0 | $0 | $200 |
| FTA Penalty | $0 | $0 | $0 | $0 | $0 | $0 |
| # | Citation ID | Citaton Type | Standard Cited | Issuance Date | Abatement Due Date | Current Penalty | Initial Penalty | FTA Penalty | Contest | Latest Event | Note |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1. | 01001 | Serious | 19100303 B02 | 04/09/1985 | 04/12/1985 | $200 | $200 | $0 | A - Amendment | ||
| 2. | 01001A | Serious | 19100303 B01 | 04/09/1985 | 04/12/1985 | $360 | $360 | $0 | A - Amendment | Citation has been deleted. | |
| 3. | 01001B | Serious | 19100304 A03 | 04/09/1985 | 04/12/1985 | $0 | $0 | $0 | A - Amendment | Citation has been deleted. |
Investigation Summary
AN EMPLOYEE IN A MAINTENANCE SHOP WAS USING A TUNGSTEN INERT GAS (TIG) WELDER. HE NEEDED MORE HEAT FOR THE TASK THAT HE WAS PERFORMING, SO HE UNPLUGGED THE TIG WELDER AND PLUGGED IN A LARGER ARC WELDER. THE WELDERS WERE RATED 480 VOLTS, SINGLE PHASE. (THE CIRCUIT WAS 277 VOLTS TO GROUND.) THE TWIST-LOCK ATTACHMENT PLUG AND CONNECTOR INVOLVED WERE HARVEY HUBBELL MODEL NUMBERS 7763 AND 7762, RESPECTIVELY. THE CONNECTOR WAS EQUIPPED WITH A KELLEMS STAINLESS STEEL GRIP (MODEL NUMBER H9107). THE GRIP WAS INSTALLED ON THE CONNECTOR SO THAT THE THE SCREWS DID NOT SEAT INTO THE PHENOLIC BODY. THE KEYWAY, WHICH WAS PART OF THE SHELL OF THE CONNECTOR, COULD TURN ON THE CONNECTOR BODY. WHEN THE EMPLOYEE DISCONNECTED THE ATTACHMENT PLUG ON THE TIG WELDER, THE KEYWAY CAME OUT WITH THE PLUG. THE PLUG ON THE OTHER WELDER COULD THEN BE INSERTED INTO THE CONNECTOR IN ANY OF THREE POSSIBLE COMBINATIONS. THE EMPLOYEE INSERTED THE PLUG SO THAT EQUIPMENT GROUNDING PIN ON THE PLUG WAS INSERTED INTO ONE OF THE SLOTS FOR THE UNGROUNDED CONDUCTORS. (NOTE: THIS PLUG-RECEPTACLE CONFIGURATION IS NOT DESIGNED TO HAVE THE EQUIPMENT GROUNDING CONDUCTOR ATTACHED TO ANY OF THE PINS OR SLOTS.) WHEN THE EMPLOYEE PLUGGED IN THE WELDER, HE WAS ELECTROCUTED, COMPLETING THE CIRCUIT FROM HAND TO HAND -- ONE HAND ON THE GROUNDED CONNECTOR BODY, AND THE OTHER HAND ON THE NOW ENERGIZED ATTACHMENT PLUG BODY.
Keywords: E GI V, ELECTRICAL, ELECTROCUTED, ATTACHMENT PLUG, GROUND FAULT, CORD CONNECTOR
| # | Inspection | Age | Sex | Degree of Injury | Nature of Injury | Occupation |
|---|---|---|---|---|---|---|
| 1 | 944520 | Fatality | Electric Shock | Construction trades, n.e.c. |