UL-9540:2016 pdf free download – STANDARD FOR SAFETY ANSI/CAN/UL-9540:2016, Energy Storage Systems and Equipment.
6.6 ELECTRIC SHOCK HAZARD — A potential for exposure of persons to hazardous voltage circuits through direct contact from openings in protective enclosures and/or insufficient insulation between hazardous voltage circuits and accessible parts.
6.7 ELECTRIC ENERGY STORAGE SYSTEM INTEGRATOR — The entity typically responsible for ensuring the various parts of the energy storage system work together, and that the energy storage system works with the external systems that either supply energy into the energy storage system or use energy from the energy storage system.
6.8 ENCLOSURE — The outer cover of the Energy Storage System that provides protection to its contents.
6.9 FAILURE MODES AND EFFECT ANALYSIS (FMEA) — a rigorous and systematic methodology for analyzing reliability and the impact the failure of any one component associated with a technology and its installation has on safety. For the purposes of this standard, only the impact to safety is considered.
6.10 FUEL CELL POWER SYSTEM — Equipment that converts chemical energy in the form of a fuel and oxidant into electrical energy with heat and by-products from the reaction.
6.11 HAZARDOUS ARC — An electrical arc with sufficient energy to result in physical hazards to someone coming in contact with it. See 10.8.
6.12 HAZARDOUS FLUID — A hazardous material (e.g. toxic, combustible, etc.) that is either a liquid or a gas.
6.13 HAZARDOUS MATERIAL — A hazardous material is a substance, which has the potential to cause
harm to humans, animals, or the environment, either by itself or through interaction with other factors.
Hazardous materials are further defined in the Occupational Safety and Health Standards for Toxic and Hazardous Substances, 29 CFR 1910.1200.
6.14 HAZARDOUS VOLTAGE — In the United States, voltage exceeding 30 Vrms/42.4 Vac peak or 60 Vdc is considered hazardous.
In Canada (per the Canadian Electrical Code, Part I Safety Standard for Electrical Installations, C22.1 and the General Requirements — Canadian Electrical Code, Part II, CAN/CSA-C22.2 No. 0) voltage exceeding 30 Vrms/42.4 Vac peak or 42.4 Vdc is considered hazardous.
6.15 INSULATION LEVELS — The following are levels of electrical insulation:
a) BASIC INSULATION — A single level of insulation that is intended to provide protection against electric shock when the insulation has not failed.
b) DOUBLE INSULATION — Insulation comprising both basic insulation and supplementary insulation.
c) FUNCTIONAL INSULATION — Insulation that is necessary only for the correct functioning of the equipment that can reduce the likelihood of ignition and fire, and that does not protect aqainst electric shock.
d) REINFORCED INSULATION — Single insulation system that provides a degree of protection against electric shock equivalent to double insulation under the conditions specified in this standard. The term “insulation system” does not imply that the insulation has to be in one homogeneous piece. It may comprise several layers that cannot be tested as basic insulation and supplementary insulation.
e) SUPPLEMENTARY INSULATION — Independent insulation applied in addition to basic insulation in order to reduce the risk of electric shock in the event of a failure of the basic insulation.
6.16 NONCOMBUSTIBLE DIELECTRIC MEDIUM — A transformer fluid that does not ignite, burn, give off flammable vapors or support combustion in air.
6.17 RESTRICTED ACCESS LOCATION — Location for energy storage system equipment as identified in the installation manual and equipment markings, or as required by local codes, where both of the following apply.