Awareness of electric heat tracing, understanding of electric heat tracing

　　The electric accompanies the heat is a kind of electric energy to turn into the heat energy electric heating element, uses the heat energy to the pipeline, the tank, the equipment accompanies the heat, will be accompanied by the heat body and the internal medium temperature to keep in the need above the process temperature.

　　From the heat principle, divided into self-limiting temperature electric accompanied by tropical, constant power electric accompanied by tropical two kinds of

　　The self-limiting temperature electric accompanies the tropical tape is relies on the PTC core body to generate heat.

　　The self-limiting temperature electric accompanies the tropical belt is electric accompanies the heat model in the most widely used one, is divided into the low temperature, the middle temperature, the high temperature three kinds of series.

　　The low temperature type accompanies the heat temperature range 0--50 degrees, the temperature resistance 85 degrees.

　　The medium temperature type accompanies the heat temperature range 0--90 degrees, the temperature resistance 135 degrees.

　　High-temperature type accompanying heat temperature range 0-110 degrees, temperature 205 degrees.

　　The characteristics of self-limiting temperature accompanying heat tape:

　　Has the self-limiting temperature characteristic, with the temperature rises the resistance will become big, the current becomes small, the use can not add the external temperature control system, if need to control in the specific temperature interval, need the external temperature control system adjustment.

　　The maximum length of a single circuit is 100 metres, can be overlapped and cross-mounted, can be freely cut and used, with a start-up current, the configuration of the circuit breaker protector needs to be considered 2 times the safety factor.