UL Standards

UL Standards
(Revisions with effect from April 1 - June 30, 2008)

Standard Title & Description	Summary of Key Requirement Changes	Effective Date
Standard No. UL 507
Electric Fans, 9^th Edititon	Guard impart testing has been expanded to require testing of all portable, window, floor insert, crawl space, or wall insert (installed less than 7 feet above the floor) appliances. Requirements for products employing convenience receptacles have been revised to include new/ revised requirements with regard to location and ratings. It has been revised to increase to 0.5m (1.5 ft.) the minimum cord length required for wall-mounted, celling-mounted, l-beam mounted, or suspension-bracket-mounted applicances marked for commercial, industrial, or agricultural use.	April 18, 2008
Standard No. UL 758
Standard for Safety for Appliance Wiring Material, 1^st Edition	All products tested to the requirements of High voltage DC wire with extruded insulation shall be subjected to either the horizontal flame or the VW-1 flame. Samples should be picked up for follow-up service testing to determine compliance with this requirement. All materials which are not specifically called out in UL1581, section 50 shall be subjected to a flexibility test and dielectric test Method I and II after 150 days of aging in addition to tensile and elongation for 90, 120, and 150 days at the temperature described in section 481.3 of UL 1581. Products that were tested at a temperature above the temperature described in Section 481.3 are considered to comply with this requirement. All extruded polymeric coverings used as the outermost layer (either required or optional per the style page) shall be tested to the same requirements as a jacket. Styles with an optional covering may have a facing page excluding the covering from the acceptable constructions. All styles using CP, NBR/PVC and SBR/NR will be reviewed to determine that they comply with the elongation recovery test specified in the applicable tables in Section 50 of UL 1581. Materials rated lower than specified it the tables in UL 1581, Section 50 shall be subjected to the aging temperatures exactly as specified in the tables in section 50, or shall be subjected to requirements of Long Term aging as described in UL 1581, Section 481.	May 1, 2008
Standard No. UL 62
Flexible Cords and Cables, 17^th Edition	STOO, SJTOO, STW, STOW, SJTW, SJTOOW and SJTOW can no longer be Listed as “low leakage”. Type HPN cord can no longer be Listed using 15AWG conductors. Types SRD, SRDT and SRDE using 10 AWG circuit conductors will be required to use a 10 AWG grounding conductor. All TPE insultated conductors from “W” rated cords shall be tested at 60°C (rather than 50°C) in the Permitivity test. Marking: The word “outdoor” will no longer be permitted to be marked on the surface of the cord. The maximum temperature rating (including 60°C) must bee surface printed on the cord. At least one flame rating is required to be marked on the surface of the cord. Types PXT and SPT-1 (20 AWG) shall bear the marking “Not for sale to the general public” on the package marking. The class numbers of the insulation and jacket have changed. The length of lay of insultated conductors used in elevator cables is now defined. The spark test potential has increased for 6kV to 7.5kV on types SRDE, SRDT and SRD. Only “W” rated cords can have a temperature rating lower than — 20°C.	May 31, 2008
Standard No. UL 696
Standard for Electric Toys, 9^th Edition	All electric toy also operated by batteries and the requirements of packing film shall comply with the requirements as stated in the Standard Consumer Safety Specification for Toy Safety, ASTM F963. The Requirements has been revised for the enclosures of toys subjected to the Abuse Test (Enclosure - Drop) for Toys over 10 Pounds.	June 12, 2008
Standard No. UL 1557
Standard for Safety for Electrically Isolated Semiconductor Devices, 4^th Edition	The revisions has been clarified the definition of the insulating material operating temperature, and when the Limited Thermal Aging test shall be conducted.	June 14, 2008