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Switchgear Maintenance
2

Switchgear Maintenance

Switchgear Maintenance

(OP)
What is the standard and referrence for existing panelboard and switchgear electrical testing & maintenance? What is the desired interval for this maintenance? I have searched Manufacturers, NFPA, NEC, Nema and found little instruction yet, I am certain there must be an authority with multiple written sources of information on the subject.

RE: Switchgear Maintenance

the bible to testing specifications is most definatley NETA (international electrical testing association)

They have 2 books that tell you how to test everything.

the two books I go buy are the "Acceptance Testing Specifications" - for brand  new equipment

"Maintenance Testing Specifications"- routine testing on existing equipment

The typical standard for maintance is once every 1-2 years.

RE: Switchgear Maintenance

Also, from the NETA standard, depending on the reliability of the system and it's age/condition will also determine frequency of maintenance.

              Poor           Ave.         Good
Low             1             2            2.5
Med             .5            1            1.5
High            .25           .5           .75

The numbers in the columns are the multiplication factors to apply to typical maintenance frequencies.
This is from the 2001 NETA standard.
Mike

RE: Switchgear Maintenance

ted - look at NFPA 70

Jimi

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