Heavy rubber hose cables "RN-F" feature rubber insulating sheaths and are coated with neoprene rubber. They are resistant to oil, UV light, and ozone, and are suitable for temperature ranges from -30°C to +60°C. Due to their excellent mechanical durability, they can withstand high demands in both dry and humid environments, as well as in utility water, and can be used outdoors permanently, for example, in agricultural operations or construction sites.

It is important to observe general guidelines for power supply at campsites and in recreational vehicles. According to DIN standard VDE 0100-721, so-called heavy rubber hose cables with the designation H07RN-F or higher quality, such as the polyurethane cable H07BQ-F in orange signal color, are required with a cable cross-section of 2.5 mm² (3G2.5). Additionally, the maximum length of the cable must not exceed 25 meters.