Constant power electric accompanied by tropical and self-control temperature electric accompanied by the difference between the tropical

　　Electric accompanied by a wide variety of tropical, some people say self-limiting temperature electric accompanied by tropical good, also some people say constant power electric accompanied by tropical good, since all say good, then today we say electric accompanied by tropical in constant power electric accompanied by hot and self-limiting temperature electric accompanied by tropical what are the different, the respective advantages and where it is?

　　Self-limiting temperature electric accompanying tropical by five parts: 1. tinned copper stranded wire 2. PTC conductive plastic molecules 3. inner sheath 4. braided layer 5. outer sheath.

　　Constant power electric accompanying heat is divided into two categories: parallel constant power electric accompanying heat and series constant power electric accompanying heat.

　　The series connection constant power electric accompanying the heat tape is also composed of five parts: 1. tinned copper stranded wire 2. core wire insulation sheath 3. inner sheath 4. braided layer 5. outer sheath.

　　Parallel constant power electric accompanying tropical by seven parts: 1. tinned copper stranded wire 2. core wire insulation sheath 3. inner sheath 4. heat wire 5. outer sheath 6. braided layer 7. outer sheath.

　　Self-limiting electric heating tape will change its own temperature according to the change of the surrounding environment temperature. When the temperature rises, the conductive plastic produces the expansion of the micro-molecule, the carbon particle gradually separates, causes the circuit to interrupt, the resistance rises, accompanies the tropical will automatically reduce the power output. When the temperature becomes cold, the plastic returns to the micro-molecule contraction state, the carbon grain connects accordingly, forms the circuit, accompanies the tropical heating power to rise again automatically.

　　Constant power electric accompanying heat, series connection constant power its resistance wire for series connection way, he with the continuation of the energisation time sends out the heat, forms a continuous, uniform heating electric accompanying heat. Parallel constant power resistance wire is connected in parallel, by two parallel tinned copper stranded wire wrapped in F46 insulation layer, as the power bus, and in the sheath outside the winding nickel-chromium alloy electric wire, every fixed distance is electric wire welding, forming a continuous parallel resistance, when the power supply copper bus power, the parallel resistance with the heat, that is, the formation of a continuous heat of the electric heat tape. But whether in parallel or series, their output power is always constant, and will not change because of the surrounding temperature environment.

　　Above we can see, the self-limiting temperature electric accompanying tropical and constant power electric accompanying tropical each has its own advantages, the majority of users can according to their own needs to select the requirements suitable for their own use.