UL 810A:2017 Electrochemical Capacitors.
1.1 These requirements cover electrochemical capacitors for use in equipment such as electronic products, uninterruptible power supplies, emergency lighting, engine starting, and power equipment. These energy storage capacitors, also known as “electric double layer capacitors”, “ultracapacitors”, “double layer capacitors” or “supercapacitors” consist of either individual capacitors or multiple series and/or parallel connected capacitors with or without associated circuitry.
1.2 These requirements do not cover electrochemical capacitors for use in hazardous (Classified) locations.
2 Units of Measurement
2.1 Values stated without parentheses are the requirement. Values in parentheses are explanatory or approximate information.
3 Undated References
3.1 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.
4.1 Except as indicated in 4.2, a component of a product covered by this standard shall comply with the
requirements for that component.
4.2 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b) Is superseded by a requirement in this standard.
4.3 A component shall be used in accordance with its rating established for the intended conditions of use.
4.4 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.
5.1 For the purpose of this standard the following definitions apply.
5.2 CAPACITOR — For the purposes of this standard, a single electrochemical capacitor will be referred to as a capacitor and is a single energy storage device whose charge and discharge is not the result of a chemical reaction.
5.3 CAPACITOR CASING — The container for an individual capacitor that serves to protect and contain its internal components and prevent injury from contact to hazardous materials.
5.4 CAPACITOR ELECTRODE — The layered interior windings of a capacitor.
5.5 CAPACITOR MODULE — A single or multiple series and/or parallel-connected, electrochemical capacitors with associated circuitry.
5.6 COMPONENT, CURRENT LIMITING — Any component used to restrict the flow of electrical charge during abnormal conditions. Current-limiting components include resistors, fuses and PTC thermistor type devices.
5.7 COMPONENT, TEMPERATURE LIMITING — Any component used to restrict the degree of overheating during abnormal conditions. Temperature-limiting components include thermal protectors, thermal cutoffs, and PTC thermistor type devices.UL 810A pdf download.