Published December 1994 | Version v1
Report Restricted

Valve actuator motor degradation

  • 1. Oak Ridge National Lab., TN (United States)

Description

Valve actuator motor degradation and failure has been a significant, but little studied, problem in the nuclear industry. This study provides a discussion of the primary failure mode --thermal degradation-- and reviews the basis for the solution to thermal degradation -- thermal protection. The study also provides reviews of various industry data bases, discusses effects of other failure modes such as corrosion, and provides a review of other considerations the user should entertain when assessing thermal protection

Availability note (English)

MF available from INIS under the Report Number; Also available from OSTI as TI95004904; NTIS; GPO.

Files

Restricted

The record is publicly accessible, but files are restricted to users with access.

Additional details

Publishing Information

Imprint Pagination
32 p.
Report number
NUREG/CR--6205

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
26033601
Subject category
S22: GENERAL STUDIES OF NUCLEAR REACTORS;
Descriptors DEI
EQUIPMENT PROTECTION DEVICES; FAILURES; MOTORS; NUCLEAR POWER PLANTS; RELIABILITY; ROTORS; STATORS; THERMAL DEGRADATION; VALVES
Descriptors DEC
CONTROL EQUIPMENT; EQUIPMENT; FLOW REGULATORS; NUCLEAR FACILITIES; POWER PLANTS; THERMAL POWER PLANTS

Optional Information

Contract/Grant/Project number
Contract AC05-84OR21400
Funding organization
Nuclear Regulatory Commission, Washington, DC (United States).
Secondary number(s)
ORNL--6796.