Radiation And High-Temperature Resistant Inorganic Mineral Insulated Coaxial And Triaxial Cables
Radiation and high-temperature resistant inorganic mineral insulated coaxial and triaxial cable, due to all materials used are inorganic materials, can undoubtedly work in high temperature state, up to 1200℃. At the same time, the radiation resistance of inorganic materials is greatly higher than that of any other known organic materials, so they are widely used in nuclear power engineering.
This kind of coaxial cable, triaxial cable with different insulation materials, possess different electrical properties accordingly which can be used in different environments.
The general structure of triaxial and coaxial cables is as follows:
Stainless steel sheath
exterior insulating layer
Interior insulation layer
Triaxial cable construction
Stainless steel
conductor
Pure copper shield
Insulation materials
Stainless steel sheath
Pure copper shield
At their typical operating temperature of 550 ºC, the insulation is better than 3x10-9 amps per metre.
| Parameters |
Technical data |
| Coaxial |
Double shield |
Triax |
| Conductor |
Cores |
1 |
| OD,mm |
0.20 - 3.18 |
| Insulation thickness |
Inner,mm |
0.35 - 6.1 |
| Outer,mm |
- |
0.40 - 1.0 |
| Cable OD,mm |
4.0 - 19.1 |
3.0 - 19.1 |
| Sheath thickness,mm |
0.25 - 1.60 |
0.30 - 1.90 |
| Characteristic impedance,Ω |
50±5 |
|
Insulation thickness
|
Core – inner shielding |
≥ 10000 MΩ |
| Inner shielding – outer shielding |
- |
≥ 10000 MΩ |
| γ radiation dose,Gy/h |
≥ 2 × 106 |
| Maximum withstand temperature |
≥ 900℃ / 2min |
|
Structure materials
(optional)
|
Conductor |
Copper, nickel chromium or pure nickel |
| Inner insulation |
High-pure MgO,Al2O3,SiO2 |
| Inner shielding |
- |
Copper,,304L,321,316L |
| Outer insulation |
- |
High-pure MgO,Al2O3,SiO2 |
| Outer shielding |
- |
- |
Copper, |
| Sheath |
304L,321,316L,Inconel 600,Alloy 825 |
Features
■ Optimised geometries to minimise surface transfer impedance
■ Designed to maintain screening performance of measurement chain
■ Very high insulation resistance to minimise signal losses
■ All cable supplied fully tested
■ Maximum operating temperature of 700 ºC in high neutron flux fields
■ Dimensions and lengths can be adapted to particular applications
Product Tags:
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Radiation Resistant Triaxial Mineral Insulated Wire 316L Sheathed Images
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