SAE J2549:2020 pdf free

SAE J2549:2020 pdf free.Single Conductor Cable for Heavy-Duty Applications – Truck and Bus
Due to the variation in the performance demands of cables used in different applications within the truck trailer system, this document addresses various types of cables, determined by their mode of installation and working environment. These are summarized in SAE J1127 and SAE J1128.
Packaging containing cable conforming to this document shall be identified with the manufacturer’s identification, and shall be identified with SAE J2549 along with the cable type as described in SAE J1127 and SAE J1128. The cable itself is not to be marked, as this may conflict with circuit identification marking.
All conductors shall be of stranded, soft- annealed copper, complying with ASTM B3, SAE J1127, and SAE J1128. The surface finish shall be sufficiently free of imperfections to enable effective terminal crimping and splicing.
The cross-sectional area of stranded conductors shall conform to the values specified in SAE J1127 and SAE J1128. Where a higher current-carrying capacity is required, the user may specify the larger cross-sectional area such as that outlined in SAE J2394 (which covers three popular conductor sizes) after consideration of the effect on terminal crimp dimensions and connectors.
The individual strands contained within a conductor shall be of the same nominal diameter. The number of strands is dependent on the flexibility and flex-life requirements for specific applications with a greater number of strands used in applications involving repeated flexing.
Insulation shall be applied in compliance with SAE J1127 and SAE J1128. The surface finish shall be free of imperfections such as indentations, voids, nicks, cuts, and roughness, and the eccentricity and perimeter of the cable shall be sufficiently uniform to enable the effective sealing of standard connectors.
The outside diameter of each insulated conductor shall be measured in accordance with the methods outlined in SAE J1127 and SAE J1128. The mean of the diameter readings shall determine the finished insulated conductor diameter and shall be in accordance with SAE J1127 and SAE J1 128, except where identified in Table 1.SAE J2549 pdf free download.