Service Entrance Labeling Requirements 15kV Switchgear

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oldgearguy

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On occasion we have been asked to provide Service Entrance Labels on our 15kV switchgear, as we provide on our 600V equipment. However looking through NEC, Section 230.66 Marking of NEC specifies that service equipment rated at 600 volts or less shall be marked to identify it as being suitable for use as service equipment. Article 490 covers our equipment over 600V, but does not address service entrance requirements. It appears to me that NEC defines service entrance for equipment above 600V only when the MV equipment supplies a MV to LV transformer which in turn feeds LV equipment. Can anyone direct me to the specific portions that pertain to service entrance labeling requirements for metalclad switchgear rated 5kV to 15kV, if it exists?
 
Medium-voltage switchgear is not required to be marked "Suitable for Use as Service Equipment". See the UL Whitebook product categories WVGN and WVEK.
 
Thank you for your response, and I agree totally and will review the referenced UL pages. However our customer has included in his specification and claims the AHJ requires. Sounds like we have some educating to do.
 
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