Trailer Connector for Australia Standard
The Australian Standards (AS) 3001-1981 requires that all trailer electrical installations be compliant with this Australian standard. The electrical system shared by the towing vehicle and the trailer is 'talking' with each other. The electrical installation should be designed so that it can withstand a'splash of water', and should be suitable for the relocating premises. The following article discusses some of the most common Australian standards for trailers.
Electrical systems shared between towing vehicle and trailer are 'talking'
When a tow vehicle and trailer share a common electrical system, both are 'talking'. This 'talking' allows the towing vehicle to control the trailer. The towing vehicle's brake lights, turn signals, and other electrical components communicate with the trailer. Trailer plugs line up with the towing vehicle's master cylinder. The tow vehicle's brake fluid does not control the surge brakes. The surge brakes must be properly wired.
Positive locking type
A positive locking type trailer connector has a pin on the end that supports another function, such as a surge brake. These types of connectors are popular in RV towers and allow for an additional wire to be tapped into a coach signal line from the towed vehicle. Another common function of these connectors is to disconnect the trailer brakes when reversing. However, the number of these connectors is not uniform.
Relay wiring
In Australia, there are a number of different standards for trailer connectors. These connectors provide a means of controlling the power supplied to trailers. ISO 1724 is the most common standard, with six and seven-pin versions available. These have different wiring requirements, but all comply with the same Australian Standard 3001-1981. Pin 2 (54G) in an Australian trailer connector is used for the reversing light.
Reversing lamps
Reversing lamps are required on any trailer with an overall width of more than 6,000mm. Rear position lamps must be fitted at a height of at least 1,200mm above the ground and must be operated in conjunction with the corresponding front and rear lamps on the towing vehicle. Rear lamps can be grouped into one unit or individually fitted with retro-reflectors. ADR 13/00, Appendix A, clause 6.8 outlines further requirements.
Safety chains
Australian safety standards for shackles and chains on trailer connectors mandate the use of rated shackles and chains on trailers. The break load limit of these shackles and chains must be 1.5 tonnes higher than the ATM of the trailer. Listed below are some important details on the use of rated shackles and chains. When choosing the correct shackle and chain, you must check that the attachment point does not come into contact with the road surface.
Ball couplings
Ball couplings for Trailer Connector for Australian standard are road-registered products that are required to meet specific requirements. These couplings must meet the Australian Design Rules. They must be positive locking devices, with a second independent locking device, to prevent disengagement. The coupling must have a plunger, with a pin and a spring fitted to its shaft. This spring is responsible for ensuring that the coupling's plunger never disengages from the ball.
12 pin flat plug and socket
A 12 pin flat plug and socket for a trailer connector for Australia standard is used for electronic signature transfer. These connectors have the same pin placements and diameters as a conventional 7-pin plug, but are more versatile. When installed on a trailer, a flat plug can be plugged into a 12 pin trailer socket to operate all functions. Flat connectors are environmentally sealed for easy installation and are highly portable.
7Pin Small Plastic Socket JH030
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