IEC 62893-2:2017 pdf download

IEC 62893-2:2017 pdf download.Charging cables for electric vehicles of rated voltages up to and including 0,6/1 kV
1 Scope
This part of IEC 62893 specifies test methods which are particular for cables with extruded insulation and sheath having a voltage rating of up to and including 0,6/1 kV AC or up to and including 1 500 V DC for flexible applications under harsh conditions for the power supply between the electricity supply point or the charging station and the electric vehicle (EV). General requirements are specified in IEC 62893-1 and particular types of cables are specified in IEC 62893-3 and the intended future IEC 62893-4 on DC charging.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. IEC 6081 1 -501 :201 2, Electric and optical fibre cables – Test methods for non-metallic materials – Part 501: Mechanical tests – Tests for determining the mechanical properties of insulating and sheathing compounds IEC 6081 1 -506, Electric and optical fibre cables – Test methods for non-metallic materials – Part 506: Mechanical tests – Impact test at low temperature for insulations and sheaths IEC 62893-1 , Charging cables for electric vehicles of rated voltages up to and including 0,6/1 kV – Part 1: General requirements ISO 1 81 7, Rubber vulcanized or thermoplastic – Determination of the effect of liquids ISO 6722-1 , Road vehicles – 60 V and 600 V single-core cables – Part 1: Dimensions, test methods and requirements for copper conductor cables ISO 22241 -1 , Diesel engines – NOx reduction agent AUS 32 – Part 1: Quality requirements
3 Terms and definitions
For the purposes of this document, the terms and definitions given in IEC 62893-1 apply. ISO and IEC maintain terminological databases for use in standardization at the following addresses: • IEC Electropedia: available at http://www.electropedia.org/
4 General requirements
4.1 Pre-conditioning All the tests shall be carried out not less than 1 6 h after the extrusion of the insulating or sheathing compounds. 4.2 Test temperature Unless otherwise specified, tests shall be made at an ambient temperature of (20 ± 1 5) °C. 4.3 Test voltage Unless otherwise specified in the individual clause of this document or in the product standard, the test voltage shall be AC of approximately sine wave form and of frequency between 49 Hz and 61 Hz. The ratio of peak value to r.m.s. value shall be equal to √2 with a tolerance of ± 7 %. The values quoted are r.m.s. values. 4.4 Test values Full test conditions (such as temperatures, durations, etc.) and full test requirements are not specified in this document; it is intended that they should be specified by the standard dealing with the relevant type of cable. Any test requirements which are given in this document may be modified by the relevant cable standard to suit the needs of a particular type of cable.
5 Test methods
5.1 Electrical test methods 5.1.1 Long term resistance of insulation to DC 5.1.1 .1 Test sample Carry out the test on a sample of cable of 5 m length from which all coverings have been removed. Take care to avoid damage to the core(s) during removal of the coverings. 5.1.1 .2 Procedure Immerse the sample for (240 ± 2) h at (85 ± 2) °C in an aqueous solution of sodium chloride having a concentration of 30 g/l, with a length of about 250 mm at each end of the sample projecting above the solution. Connect the negative pole of a 600 V DC supply to the conductor(s) of the sample and the positive pole to a copper electrode immersed in the solution for the time given in the relevant cable standard. 5.1 .1 .3 Requirement No breakdown of the insulation shall occur during the test and, after the test, the exterior of the insulation shall show no sign of damage. Discoloration of the insulation should be ignored.