For which type of trailer connection are safety chains or cables required?

Safety chains or cables are crucial for pintle hitch connections because they provide an additional layer of security in case the primary coupling fails. A pintle hitch, which consists of a hook-and-eye arrangement, is commonly used for towing heavy trailers. The safety chains ensure that the trailer remains connected to the towing vehicle, preventing it from becoming detached and possibly causing accidents. These chains are typically attached to specific points on both the towing vehicle and the trailer, enabling them to support the weight of the trailer and withstand the forces experienced during towing.

Other types of connections, such as fifth wheel and gooseneck connections, have their own design features that might not necessitate the use of safety chains or cables in the same way. For instance, fifth wheel hitches are designed to lock securely in place and typically meet regulatory safety standards without requiring additional chains. Gooseneck connections also feature a secure attachment method that can inherently reduce the risk of disconnection while towing. Hence, safety chains or cables are specifically mandated for pintle hitch configurations to enhance safety and compliance during towing operations.