UL-515:2015 pdf free download – STANDARD FOR SAFETY Electrical Resistance Trace Heating for Commercial Applications.
3 Components
3.1 Except as indicated in 3.2, a component of a product covered by this standard shall comply with the requirements for that component.
3.2 A component is not required to comply with a specific requirement that:
a) Involves a feature or characteristic not required in the application of the component in the product covered by this standard, or
b) Is superseded by a requirement in this standard.
3.3 A component shall be used in accordance with its rating established for the intended conditions of use.
3.4 Specific components are incomplete in construction features or restricted in performance capabilities. Such components are intended for use only under limited conditions, such as certain temperatures not exceeding specified limits, and shall be used only under those specific conditions.
4 Units of Measurement
4.1 Values stated without parentheses are the requirement. Values in parentheses are explanatory or approximate information.
5 Undated References
5.1 Any undated reference to a code or standard appearing in the requirements of this standard shall be interpreted as referring to the latest edition of that code or standard.
6 Referenced Publications
ASTM Standards:
ASTM B117
Standard Practice for Operating of Salt Spray (Fog) Apparatus
ASTM Eli
Standard Specification for Woven Wire Test Sieve Cloth and Test Sieves
IEEE Standards:
ANSI/IEEE 515
iEEE Standard for the Testing, Design, installation, and Maintenance of Electrical Resistance Trace Heating for Industrial Applications
IEEE 515.1
iEEE Standard for the Testing, Design, installation, and Maintenance of Electrical Resistance Trace Heating for Commercial Applications
Note: IEEE Standards may be obtained from the Institute of Electrical and Electronics Engineers, Inc., 345 E. 47th St., New York, NY 10017, USA.
7 Conductor Insulating Materials
7.1 An insulated conductor, including both the heating cable and cold leads, shall be rated for the intended voltage and temperature.
7.2 All insulated conductors in their final form (including any overjacket and splices) shall be evaluated for outdoor exposure. This evaluation shall include the weatherometer test as described in Section 9 of Subject 1588, Outline of Investigation for Roof and Gutter De-Icing Cable Units, using either the carbon or xenon arc.
Exception: The trace heating is not required to be subjected to the weatherometer test when specific markings or instructions limit the applications to locations where the trace heating is not exposed to weather.
8 Grounding Component
8.1 A heating cable shall be surrounded by a grounded metal covering. A heating panel shall have a grounded metal covering over the heating element and its electrical insulation on the side opposite the side attached to the surface to be heated. A metal braid on a heating cable shall provide at least 50-percent coverage for trace heating intended for commercial applications.
8.2 For trace heating connected to the power supply by an attachment plug, the grounding component shall be connected to the grounding pin of the attachment plug.
8.3 For trace heating intended for permanent connection to the power supply, the grounding component shall be provided with means for connection to the equipment grounding conductor in accordance with the National Electrical Code, ANSI/NFPA 70.