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What is a Category B installation for Medium Voltage metal-enclosed switchgear?

ENCLOSURE INSTALLATION CATEGORIES FOR METAL ENCLOSED SWITCHGEAR.

CATEGORY A - PROVIDE A DEGREE OF PROTECTION AGAINST CONTACT WITH ENCLOSED EQUIPMENT IN GROUND LEVEL INSTALLATIONS SUBJECT TO DELIBERATE UNAUTHORIZED ACTS BY MEMBERS OF THE UNSUPERVISED GENERAL PUBLIC.

CATEGORY B - SAME AS ABOVE EXCEPT NOT SUBJECT TO UNSUPERVISED GENERAL PUBLIC. PROVIDES PROTECTION TO UNAUTHORIZED AND UNTRAINED PERSONNEL AGAINST INCIDENTAL CONTACT.

CATEGORY C - SAME AS A EXCEPT IN SECURED INSTALLATIONS ACCESSIBLE ONLY TO AUTHORIZED PERSONS.










CTA-ID : 2011854
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