Document Name: SAE J Automobile, Truck, Track-Tractor, Trailer, and Motor Coach Wiring CFR Section(s): 49 CFR Standards Body: Society of . Find the most up-to-date version of SAE J at Engineering Electrical wiring shall be installed and maintained to conform to SAE J – Automobile, Truck, Truck-Tractor, Trailer, and Motor Coach Wiring, October , .
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Non- cycling type circuit breakers will not reset until the overload is removed, unless they are the non-cycling manual-reset type.
The elongation after aging shall be at least: The splice must be insulated. Ground return connections shall be made to the vehicle structure, frame, or engine.
SAE J AUTOMOBILE, TRUCK, TRUCK-TRACTOR, TRAILER, AND MOTOR COACH WIRING_百度文库
For larger cable sizes, rope stranding is needed for routing purposes as well. A jumper cable with cable plug conforming to SAE J Bunched or concentric will suffice in most applications, except those requiring higher flex life.
Temperature rise tests of the conductor bundle shall be run to determine the proper conductor size and insulation.
J11292 multitude of dif- 7. Search the history of over billion web pages on the Internet. NOTE — Extra protection such as braid, loom, conduit, etc. The main ground wire shall be a minimum of gauge.
Truck, Truck-tractor Section 4. Unless otherwise indicated, the latest version of SAE publications shall apply.
Wiring exposed to such conditions shall be n1292 protected by either, or a combination of, the use of heavy wall thermoplastic insu- lated cable, see SAE Standard J, Low Tension Primary Cable additional tape application, plastic sleeving or conduit, nonmetallic loom, or metallic or other suitable shielding m1292 covering. NOTE — In many cases 4 or 6 gauge may be required. Circuit Termination— Wiring for trailer circuits shall terminate in: Connec- tions shall be designed to maintain circuit integrity regardless of environmental conditions such as high humidity, road splash, rain, drainage, earth particles, fuels, lubricants, high and low temperatures, and solvent.
49 CFR 393.28 – Wiring systems.
Items that dictate the design are: Whatever coding system is chosen, the system shall facilitate in harness manufac- turing and in service. Ground terminals shall be accessible for service: Secondary applications will dictate the use of special terminations for special use or application.
All wiring for legally required lights shall be serviceable in a manner permitting removal and reinstallation from outside the trailer. Except as noted, the wiring system shall conform to the guidelines of Section 3.
Storage Battery Cables 7. All conductors are to be constructed in accordance with SAE Jl and J except when good engineering practice dictates special strand con- structions. Suitable tubing or conduit over cables may be substituted for grommets if properly secured. Clips also assist in locating and routing at assembly.
A terminal shall be attached to a Conductor by a simple mechanical crimp-type process that will cbrafonri to the intent of paragraph 3. Motor Coach Section 6.
Wiring not subject to damage from scuffing or scrubbingon rough metal-edges. Where impractical, the coding is to be followed to a junction block or harness ter- minating point where visual inspection will identify the circuit coding change.
Extreme care shall be used by the design engineer in choosing resistance wire as a conducting material to satisfy the current demand of the device and not create a temperature rise in the conductor that would deteriorate the insulating material even though the device is left on continuously.
It is further desirable for all motor vehicle manufacturers to assign and use similar color code information for commonly used electrical circuits to promote ease of circuit analysis in service among the various manufacturers.
NOTE— Contact of the trailer king pin or apron plate with the lower coupler or grounding through the coupler is not to be considered as j1229 a tractor-to-trailer ground. Full text of ” SAE J A ser- rated paint cutting terminal may be utilized to make proper contact on painted surfaces. Clips for retaining cables and har- nesses shall be securely attached to body or frame member and cable or harness.