Citadel 2.0 - Instruction Manual - page:
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Introduction and maintenance intervals;
Regardless of the length of the maintenance and lubrication interval,
Citadel breakers should be inspected, cleaned and
electricly exercised every 18 to 36 months.
Each excercise should be documented and signed.
Periodic inspections and maintenance is essential for safe and reliable circuit breaker operation.
Under “usual service conditions,” Citadel circuit breaker lubrication is recommended at seven (7)
year intervals. “Usual” and “Unusual” service conditions for medium-voltage circuit breakers and
switchgear are defined in ANSI/IEEE C37.20.2, sections 4 and 8.1, ANSI/IEEE C37.04, section 4
and ANSI/IEEE C37.010, section 4.
Generally, “usual service conditions” are where the equipment is not exposed to excessive dust,
acid fumes, damaging chemicals, salt air, rapid or frequent changes in temperature, vibration,
high humidity and extreme temperatures.
The definition of “usual service conditions” is subject to a range of interpretations.
Therefore Customers are best served by adjusting the maintenance and lubrication intervals
based on experience with the equipment in it’s own resident service environment.
A good rule is – “err on the side of conservatism and caution”.
Preventive maintenance programs are not intended to cover major repairs, reconditioning or
remanufacturing. A good preventative maintenance program should reveal if such actions are
warranted to prevent malfunctions during operation.
NBS highly recommends Users hire factory trained technicians to perform maintenance and
preventative maintenance functions if on-site personnel are not thoroughly versed and trained on
this equipment.
For the safety of maintenance personnel as well as others who might be exposed to
hazards associated with maintenance activities, the safety related work practices of NFPA
70E (especially chapters 1 and 2) should always be followed when working on electrical
equipment.
Maintenance personnel should be trained in the safety practices, procedures and
requirements that pertain to their respective assignments.
This instruction manual should be reviewed and readily accessible for reference during
maintenance of this equipment.
NFPA publication 70B, “Electrical equipment maintenance” may be used as a guide to establish
such a program.
M A I N T E N A N C E
