Explosion-proof flexible heating self-regulating cable is intended for heating and maintaining of process temperature of automation facilities, reservoirs, pipes and other facilities that require additional protection against freezing and icing.
Heating element material shrinks at low temperatures creating lots of carbon current-conducting paths and reducing electrical resistance. When electric current flows via heating element, a thermal energy output occurs.
Heating element material expands in warmer sections of the explosion-proof heating cable, reducing number of current-conducting paths. Electrical resistance of heating element material increases, resulting in a significant thermal energy output reduction.
Expansion of material of heating element in hot spots of the heating cable almost entirely tears current-conducting paths. Along with that, electric resistance of material becomes very high, which leads to significant reduction of heat energy output.
Scope of application - explosion hazardous areas of premises and outdoor installations, in accordance with the assigned explosion protection marking, the requirements of GOST IEC 60079-14-2013 and industry safety rules governing the use of this equipment in hazardous areas.
|Rated power, W/m||38 ±10%||50 ±10%||64 ±10%|
|Maximum maintained temperature, °C||+(110±10)||+(110±10)||+(110±10)|
|Maximum allowable temperature without load (1000 hours in total)||+135||+135||+135|
|Minimum installation temperature, °C||-60||-60||-60|
|Nominal cable size, mm||14,5 х 5,4||14,5 х 5,4||14,5 х 5,4|
|Maximum length of heating section at ambient temperature -20°C, m||100||100||100|
|Cable sheath material||Fluorinated ethylene propylene||Fluorinated ethylene propylene||Fluorinated ethylene propylene|
|Dimensions of electrical protection installation||Switch-on temperature, °C||Maximum heating cable length per circuit (m) at 230V AC|
|GTG-KABEL1||-||Х||-||Х||-||Х||/||Х||– TU 28.21.13-041-72453807-2017|
|Type of device|
|Maximum maintained operating t °C: 105|
|Power, W: 38, 50, 64|
|Length in meters|
|Options, accessories and versions|
Example: GTG-KABEL1-105-50-60-TU 28.21.13-041-72453807-2017
А – GTG-KABEL1-105-64
B – GTG-KABEL1-105-50
C – GTG-KABEL1-105-38
Self-regulating cable structure:
1. Current-conducting stranded tin-plated copper cores.
2. Thermoresistive element.
3. Internal insulation for provision of dielectric strength, moisture tightness, protection against impact loads and abrasion, as well as protection against chemical exposure for heat-producing matrix.
4. Outer insulation.
5. Tinned copper protective braid.
6. Fluoropolymer outer protective sheath is applied in conditions of increased humidity as well as under the exposure of organic substances and solvents or other aggressive substances in common areas or in areas classified as hazardous (not applied for /PROM version).