UL 588 BULLETIN

Abstract

Scope: This supplement covers factory-assembled string lights intended for year round use with a maximum input voltage rating of 120 V. This includes string lights with push-in, midget-screw, or miniature-screw lampholders connected in series for across-the-line use or with candelabra-, intermediate-, or medium screw lampholders connected in parallel for direct-connection use. The string lights may also be on the secondary of a Class 2 power supply. The lamps may additionally be provided with covers or reflectors. These requirements cover products that are portable and not permanently connected to a power source. These requirements do not cover lighting strings intended to provide temporary illumination during the period of construction, remodeling, maintenance, repair, or demolition of buildings or structures, or similar activities, in accordance with the National Electrical Code, ANSI/NFPA 70, Article 590, which are covered under the Standard for Temporary Lighting Strings, UL 1088. These requirements do not cover under-cabinet lighting strings, which are covered under the Standard for Portable Electric Luminaires, UL 153.