What is required from the chains that are installed between the towing vehicle and the trailer?

1. Correct answer: They should allow the trailer to make a 90 degree or more turn in relation to the towing vehicle.
2. They should ground the electric charge (static electricity) that is accumulated in the vehicle while driving.
3. They should prevent a 90 degrees angle (the letter “L”) between the towing vehicle and the trailer.
4. Their links should be at least 12 mm thick.

WhyThe chains between the towing vehicle and the trailer must let the trailer turn at least 90 degrees relative to the towing vehicle.