Part 21 Report - 1998-142

LICENSEE: CLINTON POWER STATION SITE: CLINTON POWER STATION EN NUMBER:33731 DOCKET: EVENT DATE: 01-16-98 RX TYPE: EVENT TIME: 12:00 VENDORS: NOTIFY DATE: 02-17-98 EMERGENCY CLASS: N/A REGION: 3 STATE: IL TIME: 16:46 OPS OFFICER: DOUG WEAVER 10 CFR SECTION: CCCC 21.21 UNSPECIFIED PARAGRAPH 10 CFR PART 21 - DEFECTIVE SOLDERING IN A SAFETY-RELATED BATTERY CHARGER THE BASIC COMPONENTS INVOLVED ARE THE DIVISION 2 SAFETY-RELATED BATTERY CHARGER, MODEL 3SC-130-300, AND THE HIGH VOLTAGE CIRCUIT CARD, MODEL DSHV120T2-01. THESE COMPONENTS WERE SUPPLIED TO CLINTON POWER STATION BY POWER CONVERSION PRODUCTS. THE LICENSEE HAS IDENTIFIED INADEQUATE SOLDERED CONNECTIONS THROUGHOUT THE DIVISION 2 BATTERY CHARGER. IT WAS ALSO NOTED THAT THE TIME DELAY FOR THE INSTALLED DSHV CIRCUIT CARD WAS APPROXIMATELY 16 SECONDS, THE TIME DELAY FOR THE REPLACEMENT CIRCUIT CARD WAS 6 SECONDS, AND THE PURCHASE SPECIFICATION REQUIRED A 30-SECOND TIME DELAY.

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