UL Standard for Safety Furniture Power Distribution Units
|Publication Date:||22 December 2008|
These requirements cover cord-connected, indoor use, furniture power distribution units (FPDU) that consist of single or multiple outlet wiring devices that provide power for and are intended to be installed in commercial or household (residential) portable or stationary furnishings only. These units provide outlet receptacle(s) for computers, audio and video equipment, and other equipment that is mounted on or in commercial or household (residential) portable or stationary furnishings. Furniture power distribution units may also be provided with fuses or other supplementary overcurrent protection, switches, suppression components, EMI filters, uninterruptible power supplies, and/or indicator lights in any combination, or connections for cable communications, telephone and/or antenna.
FPDUs are intended to be directly connected to a permanently installed branch circuit receptacle. FPDUs are not intended to be series connected (daisy chained) to other FPDUs, relocatable power taps, or to extension cords.
These requirements cover products rated 250 V AC or less and 16 A AC or less.
These requirements do not cover products for use in fixed furnishings.
Furniture power distribution units are not intended to function as general use relocatable power taps.
A furniture power distribution unit that employs an electromagnetic interference filter shall also comply with the Standard for Electromagnetic Interference Filters, UL 1283.
A furniture power distribution unit that employs a transient voltage surge suppressor shall also comply with the Standard for Surge Protective Devices, UL 1449.
Telephone equipment and communication circuit protectors included in a furniture power distribution unit shall comply with the requirements in the Standard for Information Technology Equipment Safety - Part 1: General Requirements , UL 60950-1, and the requirements in the Standard for Secondary Protectors for Communications Circuits, UL 497A, respectively.
A furniture power distribution unit that incorporates an antenna discharge unit or provides antenna connections to a television, a high-voltage video product, or antenna shall comply with the applicable requirements in the Standard for Antenna-Discharge Units, UL 452, and the Standard for Audio-Video Products and Accessories, UL 1492.
A cord-connected product that employs ground-fault protection shall comply with the requirements in the Standard for Ground-Fault Circuit Interrupters, UL 943.
A product that employs an uninterruptible power supply shall comply with the requirements in the Standard for Uninterruptible Power Systems, UL 1778.
These requirements cover FPDUs that incorporate one attachment plug and a single length of flexible cord terminated in an enclosure in which receptacles may be mounted. Up to six lengths of interconnecting flexible cord, not exceeding 6 feet (2.0 m) in length, may exit the enclosure with each length terminating in a separate, single cord connector or enclosure employing no more than one receptacle.
This standard does not cover FPDUs intended for use with medical equipment. Medical equipment is typically intended for use in General Patient Care Areas or Critical Patient Care Areas as defined by Article 517 of the National Electrical Code for Health Care Facilities.