Electrical Permit Requirement for Mechanical Equipment and Appliance InstallationFind more information from the following link(s):
An electrical permit for mechanical equipment and appliance installation is required when new high voltage branch circuit conductors or feeder circuit conductors are installed. An electrical permit is not required to hook-up appliances to existing conductors and to add/replace disconnect switches. Electrical permits will not be required for low voltage control wiring except when such circuits penetrate fire-rated assemblies, or are installed in an air plenums; provided the voltage does not exceed 30 volts.
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