CSA C49.8-09 pdf download – Bare overhead aluminum conductors for distribution applications.
1 Scope 1.1 This Standard specifies requirements for concentric-lay aluminum stranded conductors, with or without a central core of reinforcing steel strand. These conductors are intended for overhead installation on single-phase or three-phase electrical distribution systems. 1.2 In CSA Standards, “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; “may” is used to express an option or that which is permissible within the limits of the standard; and “can” is used to express possibility or capability. 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. 1.3 The values given in SI units are the units of record for the purposes of this Standard. The values given in parentheses are for information and comparison only. 2 Reference publications This Standard refers to the following publications, and where such reference is made, it shall be to the edition listed below, including all amendments published thereto. CSA (Canadian Standards Association) CAN/CSA-C60888-03 (R2007) Zinc-coated steel wires for stranded conductors CAN/CSA-C61 089-03 (R2008) Round wire concentric lay overhead electrical stranded conductors NEMA/EEMAC (National Electrical Manufacturers Association/Electrical Equipment Manufacturers Association of Canada) NEMA WC 26-2008/EEMAC 201 -2008 Binational Wire and Cable Packaging Standard
3 Material and construction 3.1 Conductors listed in Table 1 shall meet the requirements of CAN/CSA-C61 089. 3.2 The steel core wire used for composite conductors listed in Table 1 shall meet or exceed the requirements for S1 A wires specified in CAN/CSA-C60888, except for 3/0 AWG AACSR, which shall meet or exceed the requirements for S3A wires. 4 Tests 4.1 General Conductors shall be tested in accordance with CAN/CSA-C61 089. 4.2 Recoil and torque type test The following test shall be performed for each strander set-up on A2 conductor 7-wire designs specified in Table 1 : (a) At least 1 5 m of completed stranded conductor shall be pulled off the strander, at the capstan, without allowing any rotation of the free conductor end. When the conductor is cut, the strands shall not unravel, and the conductor end shall not rotate more than two turns when released. (b) The same conductor shall be laid out on a straight line. When the two ends are released, at least 60% of the length in the centre of the conductor shall be straight and shall not deviate from the line by more than 30 cm in either direction. The conductor shall lie flat with no vertical displacement. 5 Packaging and package marking 5.1 Packaging Completed conductors as specified in Table 1 shall be packaged on NEMA WC 26/EEMAC 201 Class III returnable wood reels or NEMA WC 26/EEMAC 201 Class I returnable steel fluted reels. Recommended metric shipping lengths are listed in Table A.1 . The actual length on any reel shall fall within a tolerance of 5% of the shipping length specified for lengths of 1 000 m or less, and within a tolerance of 3% for lengths greater than 1 000 m. A length of conductor shorter than that recommended in Table A.1 may be supplied on a reel.CSA C49.8-09 pdf download.