All permanently wired polyphase motors of 1 hp or more shall meet these requirements:Ĥ01.2.1 Efficiency. The person responsible for installing the electrical distribution system shall provide the Federal building manager a single-line diagram of the record drawing for the electrical distribution system, which includes the location of check metering access, schematic diagrams of non-HVAC electrical control systems, and electrical equipment manufacturer's operating and maintenance literature.Ĥ01.2 Electric Motors. Dedicated enclosures so furnished shall be identified as to measuring function available.Ĥ01.1.4 Electrical Schematic. These enclosures may be separate compartments or combined spaces with electrical cabinets serving another function. The minimum acceptable arrangement for compliance shall provide a safe method for access by qualified persons to the enclosures through which feeder conductors pass and provide sufficient space to attach clamp-on or split core current transformers.
The electrical power feeders for which provision for check metering is required shall be subdivided as follows:Ĥ01.1.1.1 Lighting and receptacle outletsĤ01.1.1.3 Service water heating (SWH), elevators, and special occupant equipment or systems of more than 20 kW.Ĥ01.1.1.4 Exception to 401.1.1.1 through 401.1.1.3: 10 percent or less of the loads on a feeder may be from another usage or category.Ĥ01.1.2 Tenant-shared HVAC and service hot water systems in multiple tenant buildings shall have provision to be separately check metered.Ĥ01.1.3 Subdivided feeders shall contain provisions for portable or permanent check metering. Single-tenant buildings with a service over 250 kVA and tenant spaces with a connected load over 100 kVA in multiple-tenant buildings shall have provisions for check metering of electrical consumption.
§ 434.401 Electrical power and lighting systems.Įlectrical power and lighting systems, other than those systems or portions thereof required for emergency use only, shall meet these requirements.Ĥ01.1.1 Check Metering.