Standards World

UL 758:2022 pdf free download - STANDARD FOR SAFETY Appliance Wiring Material. Compliance of the DC conductor resistance shall be determined in accordance with DC Conductor Resistance, Section 220, of UL 1581. For braided conductors, the following...

UL 489B:2016 pdf free download - STANDARD FOR SAFETY Molded-Case Circuit Breakers, Molded-Case Switches, and Circuit Breaker Enclosures for Use with Photovoltaic (PV) Systems. 9.2 Representative devices shall be wired in accordance with the instructions of the...

UL 355:2016 pdf free download - STANDARD FOR SAFETY Cord Reels. 6.7 During the examination of a product to determine compliance with 6.1 or 6.2, a part of the enclosure that can be opened or removed by...

UL 347:2016 pdf free download - STANDARD FOR SAFETY Medium-Voltage AC Contactors, Controllers, and Control Centers. 4.102 Rated duties 4.103 Rated making and breaking capacities A contactor shall be capable of making and breaking the maximum current...

UL 291:2016 pdf free download - STANDARD FOR SAFETY Automated Teller Systems. 5.6.12 The opening illustrated in Figure 5.8 may be used if, within the enclosure, there is no uninsulated live part or film-coated wire: a) Less...

UL 194:2016 pdf free download - STANDARD FOR SAFETY Gasketed Joints for Ductile-lron Pipe and Fittings for Fire Protection Service. 10 Pipe Damage Test 10.1 Joints having a self-restraining feature and incorporating setscrews or other restraining components...

UL 193:2016 pdf free download - STANDARD FOR SAFETY Alarm Valves for Fire-Protection Service. 10.6 A tapped opening in a valve body for a retarding chamber connection shall be not less than 1/2 inch pipe size, and...

UL 183:2016 pdf free download - STANDARD FOR SAFETY Manufactured Wiring Systems. 11 .6 An enclosure shall be constructed as follows: a) If intended for use in ducts used for environmental air-handling, there shall be no openings....

UL 147:2016 pdf free download - STANDARD FOR SAFETY Hand-Held Torches For Fuel Gases. 9 Filling Procedure Test 9.1 The risk of fire or injury to persons shall not be created during the filling sequence. It is...

UL 104:2016 pdf free download - STANDARD FOR SAFETY Elevator Door Locking Devices and Contacts. 4.2.3 The mechanical lock shall hold the door in the locked position by means of gravity, a restrained compression spring, or both....