UL 2703 OUTLINE
OUTLINE OF INVESTIGATION FOR MOUNTING SYSTEMS, MOUNTING DEVICES, CLAMPING/RETENTION DEVICES, AND GROUND LUGS FOR USE WITH FLAT-PLATE PHOTOVOLTAIC MODULES AND PANELS
|Publication Date:||13 November 2012|
These requirements cover rack mounting systems, mounting grounding/bonding components, and clamping/retention devices for specific (manufacturer/model designation) flat-plate photovoltaic modules and panels that comply with the Standard for Flat-Plate Photovoltaic Modules and Panels, UL 1703, intended for installation on or integral with buildings, or to be freestanding (i.e., not attached to buildings), in accordance with the National Electrical Code, ANSI/NFPA 70 and Model Building Codes.
These requirements cover rack mounting systems and clamping devices intended for use with photovoltaic module systems with a maximum system voltage of 1000 V.
These requirements cover rack mounting systems and clamping, retention devices pertaining to ground/bonding paths, mechanical strength, and suitability of materials only.
These requirements do not cover:
a) Equipment intended to accept the electrical output from the array, such as power conditioning units (inverters) and batteries.
b) Any tracking mechanism (except as specifically directed by other standards).
c) Cell assemblies intended to operate under concentrated sunlight.
d) Optical concentrators.
e) Combination photovoltaic-thermal
f) Equipment intended to carry current as a normal function of that component, such as combiner boxes, connection boxes (other than connection box for grounding), wireways and enclosures housing live parts. See the Standard for Flat-Plate Photovoltaic Modules and Panels, UL 1703 or the Standard for Inverters, Converters, Controllers and Interconnection System Equipment for Use With Distributed Energy Resources, UL 1741.
g) Ground rods and ground rod accessories.