South Australian regulations state that trailers with a GTM (total mass of the laden trailer including any luggage, gas bottles, etc) of less than 750kg do not require brakes. From 750 - 2,000kg GTM there must be a braking system on the wheels of at least one axle and over-ride brakes are optional. However, for caravans over 1,000kg GTM, independent brakes, for example, electric brakes, are strongly recommended. If you are towing a caravan with a GTM over 2,000kg, you must have a braking system operating on all wheels. The system must be capable of activating should the caravan become detached from the towing vehicle. These break-away systems are compulsory on all caravans over 2,000kg GTM.
Independent brakes must be operable from the driver's seat, except the hydraulic override and the break-away system. The hydraulic brakes operate using inertia - when the weight of the caravan pushes forward as the car slows, the brakes are engaged. Electronic brake controllers have a load sensitive controller and adjust the pressure on the brakes of the caravan in proportion to the pressure on the brakes of the car.
With a break-away system, half of the system is attached to the caravan and the other half is attached to the towing vehicle. If for some reason the connection is broken, the brakes on the van are activated.
To ensure the brakes are fitted correctly, see an expert who will also be able to give you instructions on the operation of the braking system. With a correctly fitted system, you should have almost the same stopping distance as you do when not towing.
So remember when you're packing for your next self-drive holiday, to guarantee the safety of your family, you should talk to an expert about your RV's braking system for extra peace of mind.
You can order a FREE Towing Guide and SA Caravan and Camping Guide via the Caravan and Camping Industries Association of SA website.