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Self limiting temperature heating cable current problem analysis

by:AAA     2020-04-21
( Industry news] Self limiting temperature heating cable the problem of excessive current profiling knifeqiao P common solutions to problems since the limit temperature of heat tracing cable current problem analysis, many industries in the process of production, often because of the weather, need to production equipment, pipe insulation. Many users using tropical as winter insulation products, and electric tracing band can be roughly divided into two kinds, one kind is the limit temperature associated with tropical the other is a constant power tracing band. However, many users in the use of the limited temperature associated with tropical often meet with tropical starting current is too large. Since the limit temperature associated with tropical and constant power tracing band is different, it belongs to the variable type power products, when after installation of electric heat tracing system in startup will have to pay attention to its initial starting current is very big, so the user must take some measures to prevent tracing band shorting out the start current is too large, burnt, or other phenomena. Since the limit temperature electric tracing band maximum length of one hundred meters, because of its using PTC semiconductor material, with the performance of the automatic control of temperature, the temperature is lower, the starting current is larger, the power per meter is about The Times of the steady state power, under the conditions of high temperature, power will gradually decrease. Since the limit temperature electric tracing band should choose standard for square carrying capacity for A hotline, and electric tracing band bus only around the square, how it is carrying A or more current? Carrying capacity is not only related to electric tracing band power section, and temperature also has a great relationship. Because of the limit temperature electric tracing band shall not exceed the maximum length of one hundred meters, choose the ordinary electric tracing band power wires need more lead to load a larger electric tracing band current. To avoid starting current is too large A user may choose to use the limit temperature of electric tracing band, its about A startup current, installation will happen around an A switch with tropical short-circuit phenomenon caused by starting current is too large. Some users in order to avoid electric tracing band startup current is too large, which adopts the automatic current limiter to control starting current, avoid short circuit phenomenon arising from starting current is too large, but automatic current limiter relatively expensive, is not conducive to the user the principle of economical and practical. Introduction of electric heating principle of electric heat tracing polymer based conductive composite material and adopting the composite material preparation since the limit temperature associated with tropical cable method of invention patent certificate high stability high marks at the grass-roots level electric composite material and adopting the composite material preparation method of self limiting temperature heating cable invention patent certificate since the limit temperature associated with tropical preparation method of the invention patent certificate shot screen coaxial cable utility model patent certificate electric tracing the difference between heat and electricity heating electric tracing band explosion-proof end should be how to correct installation of electric heat tracing FTH explosion-proof tee junction box function and installation method of constant power electric tracing band installation manual solar electric tracing band tail, power supply connection self-control temperature electric heating cable current overload problem solutions in full
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