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DOE-STD-6003-96
Enclosed motor windings should have moisture-resistant Class B insulation systems,
suitable for power plant service, in compliance with NEMA Standard MG-1.
Motors installed indoors should be open, drip-proof, and fully guarded or should be totally
enclosed and fan cooled. Motors installed outdoors should be NEMA weather-protected Type I
or should be totally enclosed and fan cooled.
i.
Power, control, and instrumentation cables
Except for thermocouples, metal conductors should be Class B stranded, tin-coated or
lead-alloy-coated, soft or annealed copper. Safety-class cables should be capable of passing
the cable tray vertical flame test set forth in IEEE Standard 383 (IEEE 1974). Individual conduc-
tor in cables should be capable of passing the vertical flame test of Subsection 6.19.6 of IPCEA
S-19-81 and/or S-66-524.
Safety-class cables should be qualified for intended service in compliance with IEEE
Standard 383 (IEEE 1974). Insulation and jacket thickness for power cables should be in accor-
dance with Insulated Power Cable Engineers Association (IPCEA) standards. Control cable
insulation and jacket thicknesses should also comply with IPCEA standards.
The overcurrent capacity of cables and individual conductors should comply with the
NFPA 70 standard. Cable current carrying capacity (ampacity) information contained in IPCEA
Publications P-46-426 and P-54-440 should be used to select cable size.
j.
Raceways and trays
Safety-class cables and conductors inside the facility should be in trays or in rigid steel
conduit and should route only through safety-class raceways and should comply with IEEE
Standard 344 (IEEE 1987). No other circuits should route through safety-class raceways.
Trough-type cable trays should be utilized where practicable. Tray strength should be ver-
ified by tests in accordance with the latest revisions of NEMA Standards Publication VEI-1976.
The dead weight-carry capacity of the cable trays should comply with NEMA 3-14-1079 and
VE-1-1991.
k. Electrical penetrations
Safety-related and other electrical penetrations of the fusion confinement barriers should
comply with IEEE Standards 317 and USNRC Regulatory Guide 1.63. Penetrations should meet
the same requirements of robustness and leak tightness as the confinement system. Physical
separation of penetrations should comply with USNRC Regulatory Guide 1.75.
l.
Separation of facility safety systems/components
Physical separation and independence of electrical systems should comply with IEEE
Standards 384 (IEEE 1992) and 603 (IEEE 1991).
121


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