ISO 4141-2:2019 pdf free.Road vehicles一Multi-core connecting cables -Test methods and requirements for high performance sheathed cables.
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.
ISO 1817, Rubber, vulcanized or thermoplastic — Determination of the effect of liquids
ISO 4 141-1, Road vehicles — Multi-core connecting cables — Part 1: Test methods and requirements for basic performance sheathed cables
ISO 4141-3, Road vehicles — Multi-core connecting cables — Part 3: Construction, dimensions and marking of unscreened sheathed low-voltage cables
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 14572, Road vehicles — Round, sheathed, 60 Vand 600 Vscreened and unscreened single- or multi-core cables — Test methods and requirements for basic- and high-performance cables
3 Terms and definitions
No terms and definitions are listed in this document.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— IEC Electropedia: available at http://www.electropedia.org/
— ISO Online browsing platform; available at https://wwwdso.org/obp
4 General requirements
High performance sheathed multi-core cables shall be in accordance with ISO 4141-1 and shall meet the additional test and requirements or modified test conditions specified in Clause 5.
Coiled multi-core cables shall in addition meet the tests and requirements specified in Clause 6.
5 Tests and requirements
5.1 Impact According to Iso 4141-1 but use a freezing temperature of (—20 ± 2) °C.
5.2 Pressure at high temperature According to ISO 14572 and apply the requirements for high performance cables.
5.3 Cyclic bending According to ISO 4141-1 but use 10 000 cycles.
5.4 Fluid compatibility of the sheath
5.4.1 General
For each test, use three samples, each of 300 mm minimum length, at least 1 m apart on the cable.
Bend each test sample 180° mm. to a radius of five times the outside diameter and secure it.
5.4.2 Tests
5.4.2.1 Resistance against ethanol
According to ISO 6722-1 but use a time frame of 168 hours.
5.4.2.2 Resistance against sulphuric acid
Immerse the bent test samples for 48 hours in dilute battery acid of density 1,275 g/cm3 at a temperature of(23 ± 5) °C.
Remove the test samples from the test liquid, rinse and wipe them thoroughly, straighten them, and then examine them visually.
5.4.2.3 Resistance against lubrication oil
Immerse the bent test samples for 168 hours in lubrication oil No. 1 as specified in Iso 1817 at a temperature of (23 ± 5) °C.
Remove the test samples from the test liquid, wipe them thoroughly, straighten them, and then examine them visually.
5.4.2.4 Resistance against zinc chloride
Immerse the bent test samples in an aqueous solution of zinc chloride, 50 % mass fraction, for 168 hours at a temperature of (23 ± 5) °C.
Remove the test samples from the test liquid, wipe them thoroughly, straighten them and then examine them visually.
5.4.3 Requirement The sheath shall show no evidence of fracture or cracking.
6 Specific tests and requirements for coiled multi-core cables
6.1 Elongation by cable weight
6.1.1 Test Measure the initial block length LB of the complete coil at rest and in horizontal position.
Then hang the cable vertically. After at least 60 seconds, measure the extended coil length.
6.1.2 Requirement The extended coil length shall not be more than twice the initial block length.
6.2 Resistance against cyclic extension 6.2.1 Test This test may be performed with the sample used in 6.1. Position the sample horizontally in a test apparatus and subject it to two test sequences specified in Table 1. ISO 4141-2 pdf download.