C22.2 NO. 188-13

Scope 1.1 This Standard applies to single-polarity, hand- or tool-applied splicing wire and cable connectors intended for use with all alloys of copper, aluminum conductors, or copper-clad aluminum conductors, or all three, in accordance with the Canadian Electrical Code Part I, C22.1, in Canada, the National Electrical Code, NFPA-70, in the United States of America, or the Standard for Electrical Installations, NOM-001-SEDE, in Mexico, as follows: Note: Copper-clad aluminum conductors are for use only in the United States in accordance with the National Electrical Code, NFPA 70. a) connectors intended to hold two or more conductor(s); b) connectors intended for use in appliances and equipment that comply with the requirements for such appliances and equipment; c) connectors intended for use with 6 AWG (13.3 mm2) or smaller conductors; and d) uninsulated connectors that are used in circuits rated 8 000 V and less. Note: Examples of splicing wire connectors include twist-on connectors, insulation-piercing or displacement connectors, spring-action connectors, tool-applied crimp, mechanical set-screw connectors, etc. 1.2 This Standard is intended for splicing wire connectors suitable for use with conductors in the size ranges as follows: a) Aluminum: 1) 12 AWG (3.3 mm2) and 10 AWG (5.3 mm2) solid; 2) 12 AWG (3.3 mm2) to 6 AWG (13.3 mm2) stranded, Class B concentric, compressed, and compact; and 3) 12 AWG (3.3 mm2) to 6 AWG (13.3 mm2) stranded single input wire (SIW). In Mexico, the use of aluminum conductors is permitted only with thermoset insulation and for sizes of 6 AWG (13.3 mm2) and higher. b) Copper-clad aluminum: 1) In Canada, this construction is not allowed. 2) In Mexico, this construction is not allowed. 3) In the United States: i) 12 AWG (3.3 mm2) and 10 AWG (5.3 mm2) solid; and ii) 12 AWG (3.3 mm2) to 6 AWG (13.3 mm2) stranded, Class B concentric, compressed, and Class C concentric. c) Copper: 1) 30 AWG (0.05 mm2) to 10 AWG (5.3 mm2) solid; and 2) 30 AWG (0.05 mm2) to 6 AWG (13.3 mm2) stranded, Class B concentric and compressed, and Class C concentric. d) Compact-stranded copper conductors: In Canada and Mexico, for 8 AWG (8.4 mm2) and 6 AWG (13.3 mm2). In the United States this is not applicable. e) Rigid (solid and stranded) metric wire falling within the ranges of the above AWG sizes. Note: For example, a connector rated for 6 AWG (13.3 mm2) - 14 AWG (2.1 mm2) may be additionally rated for 10 - 2.5 mm2. f) Other class and strand configurations as indicated by marking. 1.3 These requirements cover splicing wire connectors intended for: a) copper-to-copper; b) aluminum-to-aluminum; c) copper-clad aluminum-to-copper-clad aluminum; d) copper-to-aluminum or copper-clad aluminum and aluminum-to-copper- clad aluminum conductor combinations intended for intermixing of conductors and dry locations only; or e) all of the above. 1.4 This Standard is intended for splicing wire connectors suitable for currents not exceeding the ampacity of insulated conductors rated 75 °C or 90 °C, in accordance with the rating of the connector. 1.5 This Standard does not apply to: a) insulated splicing wire connectors intended for use at voltage levels in excess of 600 V [1 000 V in a sign or luminaire]; b) terminal wire connectors; c) wire binding screw terminals; d) built-in terminal connectors on devices rated less than 30 A and intended for outlet box mounting or having provision for stress relief; e) built-in terminal connectors on devices having integral cable clamps; f) flat quick connect terminals; and g) soldering lugs.