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DOE-STD-6003-96
Electrical connectors and wiring methods (per National Electric Code definitions, or
equivalent) should be used to minimize repair or replacement time. Sealed, quick-disconnect-
type connectors should be used wherever possible, and individual wiring methods (e.g., terminal
strips) should be avoided. These requirements are intended to minimize the exposure of per-
sonnel related to maintenance.
The wiring count from remote equipment to personnel areas should be minimized. The
failure probability for remote-handling equipment is directly related to the amount of vulnerable
wiring and connectors required from the work area.
f.
Tests and inspections
Provisions should be made to allow testing on a scheduled basis in accordance with
applicable codes and standards to verify the following:
1.
Limit switches are operable and functioning as required.
2.
Controlling signals from sensing devices are within specifications.
3.
Control switches are operable.
4.
Indicating instrumentation is operable and within specified accuracy.
5.
Annunciators are operable as specified.
6.
Electrical interlocks are operable and functioning as required.
7.
Load cells are performing properly.
8.
Motors are operable and functioning as required.
9.
Hoists and brakes are functioning correctly.
10.
Any special function is performing properly.
g. Hydrogen fires and detonation
Remote-handling systems should not initiate a fire or detonation in normal or off-normal
conditions in the presence of hydrogen gases. Safety-significant remote-handling systems and
components may fail in a fire or detonation event, but the failure should not degrade the function
of an adjacent safety-class SSC. Safety-class remote-handling equipment should withstand the
effects of design-basis fire or detonation and retain its basic safety functions.
h. Equipment maintenance considerations
Remote-handling equipment will potentially require maintenance while radiologically acti-
vated or contaminated (tritium or other) and should be designed accordingly. Maintenance
requirements should allow for personnel using rubber gloves, plastic suits, or similar personal
protective means. Additionally, the time required to perform maintenance may be directly related
to the resultant exposure of personnel to radiological hazards.
Maintenance methods should allow for rapid replacement of components or modules uti-
lizing quick disconnects for all services. Fasteners should be designed for gloved handling and
be of the captive type if possible.
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