Exception: Compliance shall not be required for the relocation or reuse of existing equipment at the same site.
- At least 50% of all 125-volt 15- and 20-amp receptacles in all private offices, conference rooms, rooms used primarily for printing and/or copying functions, break rooms, classrooms, and individual workstations
- At least 25% of branch circuit feeders installed for modular furniture not shown on the construction documents
This control shall function on
- a scheduled basis using a time-of-day operated control device that turns receptacles off at specific programmed times—an independent program schedule shall be provided for controlled areas of no more than 5000 ft2 and not more than one floor (the occupant shall be able to manually override the control device for up to two hours),
- an occupant sensor that shall turn receptacles off within 20 minutes of all occupants leaving a space, or
- an automated signal from another control or alarm system that shall turn receptacles off within 20 minutes after determining that the area is unoccupied.
All controlled receptacles shall be permanently marked to visually differentiate them from uncontrolled receptacles and are to be uniformly distributed throughout the space.
Plug-in devices shall not be used to comply with Section 8.4.2.
Exceptions: Receptacles for the following shall not require an automatic control device:
Exception: Up to 10% of the load for each of the categories (b) through (e) shall be allowed to be from other electrical loads.
Exceptions to 220.127.116.11 and 18.104.22.168:
- Special purpose applications
- Not likely to be used in general purpose applications
- Transformers with multiple voltage taps where the highest tap is at least 20% more than the lowest tap
- Drive transformer
- Rectifier transformer
- Uninterruptible power system transformer
- Impedance transformer
- Regulating transformer
- Sealed and nonventilating transformer
- Machine tool transformer
- Welding transformer
- Grounding transformer, or
- Testing transformer
|Single-Phase Transformers||Three-Phase Transformers|
- A low-voltage distribution transformer is a transformer that is air-cooled, does not use oil as a coolant, has an input voltage≤600 V, and is rated for operation at a frequency of 60 Hz.
- Kilovolt-ampere rating.
- Nominal efficiencies shall be established in accordance with the 10 CFR 431 test procedure for low-voltage dry-type transformers.
- Submittal data stating equipment rating and selected options for each piece of equipment requiring maintenance.
- Operation manuals and maintenance manuals for each piece of equipment requiring maintenance. Required routine maintenance actions shall be clearly identified.
- Names and addresses of at least one qualified service agency.
- A complete narrative of how each system is intended to operate.
(Enforcement agencies should only check to ensure that the construction documents require this information to be transmitted to the owner and should not expect copies of any of the materials.)