STEVETERRY
Well-Known Member
There are two proposed NEC Tentative Interim Amendments (TIA's) in public comment that are of significant importance to the entertainment industry.
TIA's 1573 and 1574 seek to exempt permanent and portable Stage Switchboards (dimmer racks and relay racks, for example) from certain requirements for general-purpose switchboards that were added to article 408 of the NEC in 2020. As explained in the substantiations for these TIA's, typical stage switchboard constructions cannot meet such requirements, which are aimed at safety when connecting or disconnecting a branch circuit to an energized switchboard. This is a use case that does not apply to stage switchboards. Nevertheless, the TIA's are needed to prevent the Listing of non-compliant stage switchboards from being withdrawn.
You may wish to consider submitting an affirmative public comment in support of these TIA's. You can find TIA proposals 1573 and 1574 here: NFPA 70, National Electrical Code® The public comment period closes June 2, 2021.
When you VIEW each of the TIA proposals, there is a hyperlink at the bottom of each document to submit a comment.
Thanks,
ST
TIA's 1573 and 1574 seek to exempt permanent and portable Stage Switchboards (dimmer racks and relay racks, for example) from certain requirements for general-purpose switchboards that were added to article 408 of the NEC in 2020. As explained in the substantiations for these TIA's, typical stage switchboard constructions cannot meet such requirements, which are aimed at safety when connecting or disconnecting a branch circuit to an energized switchboard. This is a use case that does not apply to stage switchboards. Nevertheless, the TIA's are needed to prevent the Listing of non-compliant stage switchboards from being withdrawn.
You may wish to consider submitting an affirmative public comment in support of these TIA's. You can find TIA proposals 1573 and 1574 here: NFPA 70, National Electrical Code® The public comment period closes June 2, 2021.
When you VIEW each of the TIA proposals, there is a hyperlink at the bottom of each document to submit a comment.
Thanks,
ST