ML030690518
| ML030690518 | |
| Person / Time | |
|---|---|
| Site: | PROJ0690 |
| Issue date: | 03/10/2003 |
| From: | Matthews D B Division of Regulatory Improvement Programs |
| To: | Lochbaum D A, Nelson A P Nuclear Energy Institute, Union of Concerned Scientists |
| Kang P J, NRR/DRIP/RLEP, 415-2779 | |
| References | |
| +KBR1SISP20050608 NUREG-1800, NUREG-1801 | |
| Download: ML030690518 (2) | |
Text
A.ELECTRICAL CABLES AND CONNECTIONS NOT SUBJECT TO 10 CFR 50.49Environmental Qualification RequirementsSystems, Structures and ComponentsThis section addresses electrical cables and connections that are not subject to theenvironmental qualification requirements of 10 CFR 50.49, and that are installed in power and instrumentation and control (I&C) applications. The power cables and connections addressed are low-voltage (<1000V) and medium-voltage (2kV to 15kV).
High voltage (>15kV) power cables and connections have unique, specializedconstructions and must be evaluated on an application specific basis.Electrical cables and their required terminations (i.e., connections) are typicallyreviewed as a single commodity. The types of connections included in this review aresplices, mechanical connectors
, fuse holders, and terminal blocks. This commonreview is translated into program actions, which treat cables and connections in thesame manner.Electrical cables and connections that are in the plant's environmental qualification (EQ)program are addressed in VI.B.System InterfacesElectrical cables and connections functionally interface with all plant systems that relyon electric power or instrumentation and control. Electrical cables and connections alsointerface with and are supported by structural commodities (e.g., cable trays, conduit, cable trenches, cable troughs, duct banks, cable vaults and manholes) that arereviewed, as appropriate, in the Structures and Components Supports section.NUREG-1801VI A-2April 2001Enclosure 2 NUREG-18002.1-2April 200177Electrical and I&CCables and Connections, Bus, electricalportions of Electrical and I&C Penetration Assemblies (e.g., electrical penetration assembly cables and connections, connectors, electrical splices,fuse holders, terminal blocks, power cables,control cables, instrument cables, insulatedcables, communication cables, uninsulated ground conductors, transmission conductors, isolated-phase bus, nonsegregated-phase bus, segregated-phase bus, switchyard bus)Yes78Electrical and I&CChargers, Converters, Inverters(e.g., converters-voltage/current, converters-voltage/pneumatic, battery chargers/inverters, motor-generator sets)
No79Electrical and I&CCircuit Breakers(e.g., air circuit breakers, molded case circuit breakers, oil-filled circuit breakers)
No80Electrical and I&CCommunication Equipment(e.g., telephones, video or audio recording or playback equipment, intercoms, computer terminals, electronic messaging, radios, transmission line traps and other power-line carrier equipment)
No81Electrical and I&CElectric HeatersNoYes for a Pressure Boundary if applicable82Electrical and I&CHeat TracingNo83Electrical and I&CElectrical Controls and Panel InternalComponent Assemblies (may include internal devices such as, but not limited to, switches, breakers, indicating lights, etc.)
(e.g., main control board, HVAC control board)
No84Electrical and I&CElements, RTDs, Sensors, Thermocouples,Transducers (e.g., conductivity elements, flow elements, temperature sensors, radiation sensors,watt transducers, thermocouples, RTDs, vibration probes, amp transducers, frequency transducers, power factor transducers, speed transducers, var. transducers, vibration transducers, voltage transducers)
NoYes for a Pressure Boundary if applicable85Electrical and I&CFusesNo86Electrical and I&CGenerators, Motors(e.g., emergency diesel generators, ECCS and emergency service water pump motors, small motors, motor-generator sets, steam turbine generators, combustion turbine generators, fan motors, pump motors, valve motors, air compressor motors)
No