Insulating silicone tubes for conductive elements
- Inner diameter from 3 to 30 mm.
- Wall thickness from 0.6 to 5 mm.
- Operating voltage up to 1000V.
- Operating temperature up to + 2500C.
- Available in reels of infinite length.
- They do not support combustion. At a temperature significantly higher than the working temperature, a non-conductive layer of silicon oxide is formed on the metal surface.
| Type of rubber | Heatproof | Fireproof | Silicone forming | ||
| Indicator | |||||
| Hardness (Shore) | 55-65 | 65-75 | 65-75 | 75-85 | 65-75 |
| Tensile strength (MPa) | 6-9 | 5-8 | 6-10 | 6-10 | 6-8 |
| Elongation at break (%) | 350-600 | 320-480 | 300-450 | 270-400 | 150-250 |
| Tear strength (kN/m) | 10-25 | 10-25 | 9-20 | 9-20 | 8-16 |
| Compression set (%, 22 hours x 1770C x 25%) | До 55 | До 35 | – | – | До 70 |
| Elastic recovery (%) | 45-52 | 42-52 | – | – | 42-52 |
| Residual modulus at 100% elongation (MPa) | 1,5-2 | 1,5-2 | – | – | 3-4 |
| Linear shrinkage (%) | 2,4-3,4 | 2-4 | – | – | – |
| Dielectric strength (on a 2 mm thick sample) kV/mm | 22 | 21 | – | – | 26 |
| Dielectric constant at 1 MHz | 2,8 | 2,8 | 2,8-3,2 | 2,8-3,2 | 3,1 |
| Dielectric dissipation factor at 1 MHz | 4х10-3 | 3,5х10-3 | 3х10-3х4х10-3 | 3х10-3х4х10-3 | 5,1х10-3 |
| Tracking resistance, KV | 3,5 | 3,5 | – | – | – |
| Volume resistance (Ohm x cm) | 2х1015 | 2,2х1014 | 5,4х1015 | 5,4х1015 | 6,1х1015 |
| Oxygen index (LOI), % | – | – | 40-45 | 40-45 | 28,3 |