SAE J2174:2020 pdf free

SAE J2174:2020 pdf free.Heavy-Duty Wiring Systems for Trailers 2032 mm or More in Width
The electrical wiring system includes all cables and wiring, connectors and terminations, coverings, seals, any other incorporated items to maintain the integrity and performance of the electrical system, and the connector to any mating device with the exception of the SAE J560 connector where only the electrical performance requirements apply. The electrical wiring system does not include the functional devices to which the wiring system is attached such as lamps, ABS electronic control modules, or sensors.
A condition which provides a nonleaking union between two mechanical components or any place within an electrical distribution system. A sealed union is defined as one which does not allow the ingress of moisture.
The measurement of connection voltage drop shall be per SAE J163 and Figures 1 and 2. The voltage drop of the cables shall be subtracted from the measured values. Except for connectors specified by SAE J560, the voltage drop shall be measured at the current specified in Table 1 of this document.
The cable-to-cable or cable-to-component connector assemblies shall be subjected to 10 cycles of thermal shock. One cycle shall consist of 30 minutes at a temperature of -40 °C±2 °C followed by 30 minutes at a temperature of 80 °C±2 °C with a transfer time of 2 minutes maximum.
Connectors shall be capped prior to testing to prevent entry of oil into the connector cavities during the test. The wiring assembly shall be immersed in ASTM D471, IRM-902 engine oil at 50 °C±3 °C for a period of 20 hours. After removal from the engine oil, remove excess oil from the surface and allow sufficient time for excess oil trapped in the assembly to drain completely.
It is difficult to subject a complete trailer wiring system to a vibration test due to its size. To accomplish a meaningful test,individual sections need to be tested alone or along with other sections. Each connector system, as well as each mounting support location, must be tested. Unsupported sections routed around tight corners or passing through cutouts should also be tested.SAE J2174 pdf free download.