CSA C22.2-NO.131:2017 pdf download.Type TECK 90 cable
1.1 CSA C22.2-NO.131 applies to single- and multi-conductor Type TECK 90 armoured cable intended for installation in accordance with the Canadian Electrical Code, Part 1, on systems having nominal voltages of 5000 V and less and having a maximum temperature rating of 90。C in both dry and wet locations.
1.2 In this Standard,“shall" is used to express a requirement, i.e., a provision that the user is obliged to satisfy in order to comply with the standard;“should" is used to express a recommendation or that which is advised but not required; and "may" is used to express an option or that which is permissible within the limits of the standard.
Notes accompanying clauses do not include requirements or alternative requirements; the purpose of a note accompanying a clause is to separate from the text explanatory or informative material.
Notes to tables and figures are considered part of the table or figure and may be written as requirements.Annexes are designated normative (mandatory) or informative (non-mandatory) to define their application.
5.1.3 Sizes
The circuit conductor in single-conductor cable shall be not smaller than No.6 AWG for copper and No.4 AWG for aluminum. The circuit conductors in multi-conductor cables shall be not smaller than No.14 AWG for copper and No.12 AWG for aluminum, except that No. 8 AWG shall be the minimum size of conductor for a voltage rating of 5000 V. In both single- and multi-conductor cables, the maximum conductor size shall be 2000 kcmil for copper and aluminum.
5.1.4.1.1 An extruded, concentric, thermoset conductor shield shall be used on circuit conductors of cables rated 5000 V. Conductor shielding shall be a semiconducting material of a minimum thickness as specified in Table 1 applied over the surface of the conductor, firmly bonded to the inner surface of the insulation and compatible with it. The thickness shall be determined in accordance with the average thickness test and minimum thickness at any point test in CSA C22.2 No. 2556.
5.1.4.1.2 For compact round conductors that have a diameter eccentricity less than or equal to 0.051 mm (2 mils) as measured before the extruded shield is applied, the thickness values specified in Table 1 may be reduced by up to 50%.
Note: Diameter eccentricity is defined as the maximum diameter minus the minimum diameter of a given cross-section.
5.2.1 General
Each cable shall contain at least one bare or insulated bonding conductor of a size not smaller than specified in Table 3. Where a bonding conductor is provided in multi-conductor cable, it shall meet the applicable requirements of Clause 5.1, except as specified in Clause 5.2.3. If the wires of a bonding conductor composed of copper are in contact with any insulation, tape, etc., that has a deleterious effect on copper, the individual wires shall be coated. Uncoated copper bonding conductors may be used in cables with ethylene-propylene-rubber-insulated conductors, provided that such conductors and insulation are mutually compatible, as determined by the test specified in Clause 7.18.CSA C22.2-NO.131 pdf download.