UL 1081-2016 pdf download – Swimming Pool Pumps, Filters, and Chlorinators.
2 Units of Measurement 2.1 Values stated without parentheses are the requirement. Values in parentheses are explanatory or approximate information. 2.2 Unless indicated otherwise, all voltage and current values mentioned in this standard are root-mean-square (rms). 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 Glossary 4.1 For the purpose of this standard the following definitions apply. 4.2 BASIC INSULATION (formerly FUNCTIONAL INSULATION) – The insulation applied to live parts to provide basic protection against electric shock. Basic insulation does not necessarily include insulation used exclusively for functional purposes. 4.3 CORD- AND PLUG-CONNECTED UNIT – A unit provided with flexible cord and an attachment plug for connection to the supply source. 4.4 DOUBLE INSULATION – An insulation system comprised of basic insulation and supplementary insulation, with the two insulations physically separated and arranged so that they are not simultaneously subjected to the same deteriorating influences (temperature, contaminants, or the like) to the same degree. 4.5 INDOOR UNIT – A unit investigated for use only where protected from the weather. 4.6 LINE VOLTAGE CIRCUIT – A circuit involving a potential of not more than 600 volts and having circuit characteristics in excess of those of a low-voltage circuit or limited-energy circuit. 4.7 OUTDOOR UNIT – A unit that has been investigated and determined to be acceptable for use where exposed to weather. 4.8 PERMANENTLY-CONNECTED UNIT – A unit that is intended for connection to one of the applicable permanent wiring systems in accordance with the National Electrical Code, ANSI/NFPA 70.
6.5 Wire connectors 6.5.1 Wire connectors shall be suitable for the wire size, type (solid or stranded), conductor material (copper or aluminum) and the number of conductors terminated. If insulated they shall be suitable for the voltage and current of the intended use. They shall be applied per the installation instructions of the wire connector manufacturer. 6.5.2 Wire connectors shall comply with the Standard for Wire Connectors, UL 486A-486B, or the Standard for Equipment Wiring Terminals for Use with Aluminum and/or Copper Conductors, UL 486E. 7 Frame and Enclosure 7.1 An appliance shall be provided with an enclosure housing all electrical parts that present a risk of fire, electric shock, or injury to persons under all conditions of use. 7.2 The frame and enclosure of an appliance shall possess the strength and rigidity to resist the abuses to be encountered during service. The degree of resistance inherent in the unit shall preclude total or partial collapse with the attendant reduction of spacings, loosening or displacement of parts, and other serious defects that alone or in combination constitute an increase in the risk of fire, electric shock, or injury to persons. 7.3 The enclosure of a unit for outdoor use, when of sheet metal, shall have a thickness of not less than 0.032 inch (0.81 mm) when uncoated or of not less than 0.034 inch (0.86 mm) when galvanized.