The DEVIpipeguard™ is a self-limiting heating cable that is mainly used for frost protection of pipes. The self-limiting capability of the cable ensures that the output of the cable increase or decrease according to ambient temperature. The cable will maintain its functionality even when shortened. The outer sheath is highly resistant to harsh environmental conditions and corrosion and it also serves as a protection against mechanical influences. All selflimiting heating cables must be overtemperature protected by a thermostat, as the output will decrease, but never be zero. The cables are not approved for use in drinking water.