Standards World

UL-248-11:2011 pdf free download - STANDARD FOR SAFETY Low-Voltage Fuses - Part 11: Plug Fuses. This is the harmonized ANCE, CSA, and UL standard for Low-Voltage Fuses — Part 11: Plug Fuses. It is the second edition...

UL-248-1:2011 pdf free download - STANDARD FOR SAFETY Low-Voltage Fuses - Part 1: General Requirements. 8.2.4 Acceptability of test results No external soldered connections shall melt. The fuse body or label may discolor but shall not char...

UL-103:2010 pdf free download - STANDARD FOR SAFETY Factory-Built Chimneys for Residential Type and Building Heating Appliances. 14 Support Assembly 14.1 A support assembly (such as a ceiling or floor support) shall establish and maintain the minimum...

UL-48:2011 pdf free download - STANDARD FOR SAFETY Electric Signs. 4.2.4.2 Grounding (bonding) dead metal parts to the equipment grounding means 4.2.4.2.1 All parts of a sign required to be grounded shall be conductively connected to the...

UL-44:2010 pdf free download - Underwriters Laboratories Inc. Standard for Safety Thermoset-Insulated Wires and Cables. 5.14.5 Vertical-tray (optional) Finished wires or cables shall not exhibit damage that reaches the upper end of any of two sets of...

UL-33:2010 pdf free download - STANDARD FOR SAFETY Heat Responsive Links for Fire- Protection Service. 14 Evaporation Test for Wax Coatings 14.1 When tested as specified in 14.3, a protective coating containing volatiles such as wax or...

UL-20:2010 pdf free download - Underwriters Laboratories Inc. Standard for Safety General-Use Snap Switches. 4.4.2 Means for Mounting 4.4.2.1 A base intended for surface mounting shall have two or more holes for mounting screws, and a base...

UL-13:2011 pdf free download - Underwriters Laboratories Inc. Standard for Safety Power-Limited Circuit Cables. 10 Electromagnetic Shield(s) 10.1 An electromagnetic shield is not required other than as the outer conductor in a coaxial member but is acceptable...

UL-6:2010 pdf free download - Electrical Rigid Metal Conduit 一Steel. 6.2.1.4 The supplementary coating described in Clause 5.3.5 need not comply with Clause 6.2.1.1. 6.2.1.5 For identification of compounds, a nonmetallic material used as an alternate corrosion-resistant...

UL-1778:2011 pdf free download - Underwriters Laboratories Inc. Standard for Safety Uninterruptible Power Systems. 1.7.15 Replaceable batteries Additional subcla uses: 1.7.15.101 Batteries replaceable by SERVICE PERSONNEL Battery cabinets or compartments shall be provided with the following, clearly...