The relationship between the length and resistance of electric heating tape

　　Electrical tracing refers to the use of electrical energy to supplement the heat loss of the object to be accompanied by heat in the process, so that its temperature is maintained within a certain range. The importance of electric accompanying heat technology in various industries is gradually being recognised by people, and its high efficiency and controllability cannot be compared with that of steam accompanying heat. In the process of using some users consult us electric accompanied by tropical length and resistance of the relationship, in order to help you understand, the following will give you an introduction.

　　The longer the electric accompanied by the tropical tape the greater its resistance, resistance formula for R = resistivity * L / S, L for the length, S for the cross-sectional area.

　　The resistance value test of electric accompanying tropical should be carried out before installation, in order to ensure the accuracy of the resistance value test, can choose a megohmmeter of 500 volts or above. Test between two wires and metal braid layer at one end of selected electric accompanied by tropical tape, it is recommended to test electric accompanied by tropical polymer insulation voltage of 1000 volts or 2500 volts, the test method is as follows:

　　1. megohmmeter connected to the two wires of the electric heating tape;

　　2. each of the two wires were tested with the metal braid between the test, test its resistance value, thermal insulation and temperature resistance, test values refer to the product specification parameters.

　　Above is the electric accompanied by tropical length and resistance of the introduction, measurement of electric accompanied by tropical resistance is very important, can detect the electric accompanied by tropical damage to eliminate security risks, to ensure that the electric accompanied by the normal operation of the tropical heat preservation for the equipment.