Silicone Rubber Heating Wire/Cable (like 30ohm/m, 80ohm/m)
Due to the good combination of properties such as good electrical insulating ability, flexibility and excellent heat conductivity, the silicone rubber heating wires which SENPHUS manufactures have been widely used in electric cushion, electric cloth, animal pet, jade mattress, electric shoes, electric massage armchair, car windows, electric towel rack, heat-preservation-type rice cooker, etc. products as heating wires, and in air condition, refrigerator, cooler, etc. to prevent the formation of condensation on surfaces. Besides, the wires could be used as the anti-freeze heating wires for pipe and tank, etc.
There are three main models PVC wires:
A,
SH-SR-20B, SH-BSR-20
C, SH-2SR-20
D,
SH-SR2-20however, their technical parameter is almost same.
Silicone rubber heating wire specification:
| item |
performance index |
instruction |
| insulation:silicone rubber |
tensile strength |
≥4.9Mpa |
UL1581 |
| elongation |
≥ 100% |
| minimum average thickness |
≥ 0.4mm |
UL758 |
| finishe wire |
hot deformation test |
≤ 30% |
232ºC * 1 h |
| spark test |
no spark-over |
3.0KV/0.15sec; |
| conductor resistance |
standard value+10%/-5% |
|
finished product resistance scope
|
1--10000 ohm/m |
| crankle test |
≥20000 (no abnormalities) |
| bending test of finished product |
≥5000 (no abnormalities) |
| O.D. of finished product |
2.5+/-0.15mm |
other O.D. are optional |
| length per coil |
(100-500m) |
+0/-2M |
Apply:
Refrigeratory, air-conditioner, electric cooker, defrost, electric blanket, electric oven, teapot, flowerpot, anti-icing, etc
Structure&test
1. Core: Glass fiber or polyester fiber
2. Heating thread: Constantan, nickel-chromium, iron chromium, copper nickel
3. Insulator: Silicon rubber of different thickness
5. Bend test: 5000 times (according to UL/IEC standard)
5. Circumnutating test: 250000 times ( according to UL/ IEC standard)
UL certificate of silicone rubber heating wire:
E347295
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