Electrical power and lighting systems.

CFR · 2024-01-01 · US · Title 10

Electrical power and lighting systems, other than those systems or portions thereof required for emergency use only, shall meet these requirements. 401.1 401.1.1 401.1.1.1 Lighting and receptacle outlets 401.1.1.2 HVAC systems and equipment 401.1.1.3 Service water heating (SWH), elevators, and special occupant equipment or systems of more than 20 kW. 401.1.1.4 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. 401.1.2 Tenant-shared HVAC and service hot water systems in multiple tenant buildings shall have provision to be separately check metered. 401.1.3 Subdivided feeders shall contain provisions for portable or permanent check metering. 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. These enclosures may be separate compartments or combined spaces with electrical cabinets serving another function. Dedicated enclosures so furnished shall be identified as to measuring function available. 401.1.4 401.2 401.2.1 (a) Multispeed motors used in systems designed to use more than one speed. (b) Motors used as a component of the equipment meeting the minimum equipment efficiency requirements of subsection 403, provided that the motor input is included when determining the equipment efficiency. 401.3.1.1 Trade-offs

official document · source cfr-2024 · id 10:§ 434.401