This technical advisory procedure provides trucking operators with detailed technical advice covering heavy vehicle wiring, lighting, voltage levels, connectors, alternators, batteries and the towing vehicle power source.

At 100 km/h, a LED brake light will come on 4.4 metres earlier than a comparable incandescent light.  This can easily be the difference between a rear-end crash and a near miss. But in order to achieve this safety gain, heavy vehicle wiring needs to be able to support these products.

This technical advisory procedure provides in-depth guidance for trucking operators and workshops to make sure they are getting the most out of their truck’s electrical system.

The document also provides specific advice on preventing electrical failures that could spark a heavy vehicle fire, following a number of incidents where worn or incorrect electrical components have been identified as the root cause of such a fire.