Principle and characteristics of self-limiting temperature and middle temperature tracking zone

The electropolymer is composed of two parallel metal wires and an insulating sheath. Its characteristics are conductive polymer has a high positive temperature number "PTC" characteristics, and parallel with each other, can automatically adjust the output power with the temperature change of the heating system, automatically limit the heating temperature, can be arbitrarily cut off or in a certain range of long use.

Self-limiting mesotemperature trace zone composition

(1) Copper bus :7*0.42, 7*0.50, 19*0.32.

(2) heating core: ordinary positive temperature coefficient, flame retardant positive temperature coefficient,

(3) Insulation layer: modified polyolefin, flame retardant polyolefin, fluorinated polyolefin and perfluorinated materials. Fluorinated PTC.

(4) Shielding layer: tinned soft round copper wire braid layer.

(5) sheath layer: modified polyolefin, flame retardant polyolefin, fluorinated polyolefin and perfluorinated materials.

Technical index of self-limiting medium temperature tracking zone

Standard colors: orange, brown

Temperature range: z.u I maintain high temperature is 105 ℃ | z.u I high surface temperature of 105 ℃ + / - 5 ℃, z.u I high bearing temperature is 135 ℃

Construction temperature :z.u Low: -30 ℃

Thermal stability: After 300 cycles from 10℃ to 149℃, the calorific value of the cable is maintained at 90%

Bending radius: 25.4mm; Room temperature 20℃; 35.0 mm at -30℃

Insulation resistance: When the cable length is 100 meters and the ambient temperature is 75℃, shake it for 1 minute with 2500 volts DC shaker. z.u small insulation resistance (between conductor and shield) is 3000 m

Working voltage :12V 24V 36V 110V 220V 380V

Output power at 10 ° C :25W/m 35W/m 40W/m 45W/m 50W/m 60W/m

Explosion-proof mark :ExeⅡT4