Inspection Detail

Inspection: 101725604 - Ohio Edison W.H. Sammis Plant

Inspection Information - Office: Columbus Area Office

Inspection Nr: 101725604

Report ID: 0522500

Date Opened: 09/06/1986

Site Address:
Ohio Edison W.H. Sammis Plant
State Route 7
Stratton, OH 43961

Mailing Address:
P.O. Box 176, Stratton, OH 43461

Union Status: Union

SIC:4911

NAICS: 0

Inspection Type: Accident

Scope: Partial

Advanced Notice: N

Ownership: Private

Safety/Health: Safety

Close Conference: 09/18/1986

Emphasis:

Case Closed: 09/23/1986

Related Activity
Type	Activity Nr	Safety	Health
Accident	360681225

Investigation Summary

Investigation Nr: 14570204

Event: 09/05/1986

EXPLOSION - HYDROGEN GAS LEAKED INTO GENERATOR EXCITER

THE DIRECT CURRENT SYSTEM IN A LARGE ELECTRIC POWER GENERATING PLANT FAILED. THE DIRECT CURRENT SYSTEM WAS USED TO SUPPLY POWER FOR SWITCHING AND TO SUPPLY POWER TO THE EMERGENCY OIL PUMPS ON THE GENERATORS. AS ONE OF THE GENERATORS BEGAN TO LOSE OIL PRESSURE (WHICH LUBRICATES THE BEARINGS AND HYDROGEN SEALS ON THE UNIT), THE LARGE BABBIT BEARINGS OVERHEATED AND BEGAN TO MELT. THE OIL IGNITED AND FIRES STARTED AT EACH JOURNAL, AND HYDROGEN GAS ESCAPED PAST THE SEALS AND INTO AN EXCITER COVERING. THE HYDROGEN EXPLODED, INJURING 24 EMPLOYEES. THESE EMPLOYEES WERE HOSPITALIZED FOR THEIR INJURIES.

Keywords: HYDROGEN, FIRE, EXPLOSION, BEARING, ELEC UTILITY WORK, SEAL, ELECTRIC GENERATOR

Investigated Inspection
#	Inspection	Degree of Injury	Nature of Injury	Occupation
1	101725604	Hospitalized injury	Asphyxia	Occupation not reported
2	101725604	Hospitalized injury	Asphyxia	Occupation not reported
3	101725604	Hospitalized injury	Asphyxia	Occupation not reported
4	101725604	Hospitalized injury	Asphyxia	Occupation not reported
5	101725604	Hospitalized injury	Asphyxia	Occupation not reported
6	101725604	Hospitalized injury	Asphyxia	Occupation not reported
7	101725604	Hospitalized injury	Asphyxia	Occupation not reported
8	101725604	Hospitalized injury	Asphyxia	Occupation not reported
9	101725604	Hospitalized injury	Asphyxia	Occupation not reported
10	101725604	Hospitalized injury	Asphyxia	Occupation not reported
11	101725604	Hospitalized injury	Asphyxia	Occupation not reported
12	101725604	Hospitalized injury	Asphyxia	Occupation not reported
13	101725604	Hospitalized injury	Asphyxia	Occupation not reported
14	101725604	Hospitalized injury	Asphyxia	Occupation not reported
15	101725604	Hospitalized injury	Asphyxia	Occupation not reported
16	101725604	Hospitalized injury	Asphyxia	Occupation not reported
17	101725604	Hospitalized injury	Asphyxia	Occupation not reported
18	101725604	Hospitalized injury	Asphyxia	Occupation not reported
19	101725604	Hospitalized injury	Asphyxia	Occupation not reported
20	101725604	Hospitalized injury	Asphyxia	Occupation not reported
21	101725604	Hospitalized injury	Asphyxia	Occupation not reported
22	101725604	Hospitalized injury	Asphyxia	Occupation not reported
23	101725604	Hospitalized injury	Cut/Laceration	Occupation not reported
24	101725604	Hospitalized injury	Asphyxia	Occupation not reported

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