ISO 6722-2:2013 pdf free.Road vehicles- 60 V and 600 V single-core cables – Part 2: Dimensions, test methods and requirements for aluminium conductor cables.
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 6722-1 apply. NOTE Whenever a.c. voltage is specified throughout this part of ISO 6722, the a.c. rms value shall be used.
4 General
4.1 Safety concerns See“WARNING” at the beginning of this part of ISO 6722.
4.2 Temperature classes Temperature classes are defined in Table 1.
4.3 Conductors The conductors shall consist of annealed or annealed compressed/compacted aluminium, aluminium alloy, or copper-cladded aluminium strands. The specifications for the conductors shall be according to Table 2 and shall be completed by material specifications. Elongation requirements shall be established by the agreement between the customer and the supplier. The finished cable shall meet the resistance requirements of Table 5 for all conductors.
The individual strands of the aluminium conductor shall be manufactured per 1 000 series aluminium, pursuant to EN 573-1. The chemical composition shall follow EN 573-3:2009, Table 1.
NOTE Examples of strandings are shown in Table Al. These strandings highlight examples of conceptual configurations and are not intended to reflect any preferred constructions. Other stranding configurations may be used provided they meet the requirements specified and are agreed upon by the customer and the supplier.
4.4 Tests The cables shall be submitted to tests as specified in Table 3. Unintended direct contact of aluminium wire with any other metal shall not occur with any of the test methods.
4.5 General test conditions If not otherwise specified, the device under test (DUT) shall be preconditioned for at least 16 h at a room temperature (RT) of (23 ± 5) °C and a relative humidity (RH) of 45 % to 75 %. Unless otherwise specified, all tests other than “in-process” tests shall be conducted at these conditions.
Where no tolerance is specified, all values shall be considered to be approximate.
When a.c. tests are performed, these shall be carried out at 50 Hz or 60 Hz. Applications at higher
frequencies may require additional testing.
4.6 Ovens An oven with air exchange, either natural or by pressure, should be used. The air shall enter the oven in such a way that it flows over the surface of the test pieces and leaves near the top of the oven. The oven shall have not less than 8 and not more than 20 complete air changes per hour at the specified ageing temperature.
Forced air circulation, e.g. by a fan, inside the oven may be used. However, in case of dispute, an oven without forced air circulation shall be used.
4.7 Representative conductor sizes for testing When a test is required, all combinations of conductor size, wall thickness, and insulation formulation shall meet the appropriate requirements. However, if the testing of representative conductor sizes is permitted (see Table 3), compliance for a cable family may be demonstrated by testing the examples of large and small conductor sizes only. Permission to show compliance for a cable family by testing “representative conductor sizes” shall be established by the agreement between the customer and the supplier.
4.8 Recommended colours For a list of recommended colours, see ISO 672 2-1.
5 Tests
5.1 Outside cable diameter 5.1.1 Purpose, test sample, and test ISO 6722-1 applies.
5.1.2 Requirement No single value shall be larger than the appropriate values specified in Table 4.
NOTE See Table A.2 for the minimum outside cable diameters.ISO 6722-2 pdf download.