The electrical contractor claims that article 670 should apply to the installation of the control panel for a pump. This installation is in a sewage plant and the voltage is 480.
He feels that he does not have to comply with nec 1999, 110-26. The control panel is a seperate piece of equipment which has the starter, control xfmr, disconnect and relays inside of. The pump is a slugde grinder that is seperate from the panel. He feels that the clearance requirement does not apply because it is in an industrial plant.
My view of the code is that article 670 applies to package units, and that article 110-26 should apply for the disconnect.
He feels that he does not have to comply with nec 1999, 110-26. The control panel is a seperate piece of equipment which has the starter, control xfmr, disconnect and relays inside of. The pump is a slugde grinder that is seperate from the panel. He feels that the clearance requirement does not apply because it is in an industrial plant.
My view of the code is that article 670 applies to package units, and that article 110-26 should apply for the disconnect.