Super V Series: Flex- and Twist-resistant Extension and Compensating Cables for Thermocouples
The VX Super V series offers VX (KCB) extension and compensating cables for thermocouples, used as lead wires for K (Chromel-Alumel) thermocouples compliant with JIS C 1630. With highly excellent flexibility that provides flex and twist resistance, they are recommended for use in wiring moving elements of injection molding machines, robots, and other equipment.
断面図
仕様
| Conductor | The conductor is JIS C 160 compliant thin VX (KCB, a copper-nickel alloy for copper-VX) wire that is twisted together with synthetic fibers, which exhibit excellent flexibility. |
|---|---|
| Insulation and sheath | Insulation: Vinyl material resistant to heat up to 90℃ Sheath: Soft vinyl material resistant to flex, twists, and heat up to 105℃. Color coding: (+) = red, (-) = white, sheath = blue according to JIS Category 2 (The color coding can be compliant with JIS Category 1 or the like) |
| Pair twisting | Individually insulated extension and compensating cables for thermocouples are twisted together in pairs with an inclusion. The inclusion restrains flex and other stresses applied to the metal conductors by reducing the frictional resistance. |
| Maximum operating temperature | 90℃ |
Structure
| Nominal cross-sectional area | Composition | Insulation | Twisted pair | Sheath | Standard diameter | Max length | Estimated weig | ||
|---|---|---|---|---|---|---|---|---|---|
| mm2 | No./diameter of component wire Pcs/mm | Outside diameter mm |
Thickness mm |
Outside diameter mm |
Outside diameter mm |
Thickness mm |
Outside diameter mm |
m | kg/km |
| 0.5 | 45/0.12 | 1.2 | 0.5 | 2.2 | 4.4 | 0.8 | 6.0 | 1,000 | 43 |
Electrical Characteristics
| Thermal electromotive force | Temperature tolerance | ||
|---|---|---|---|
| ℃ | 50 | 100 | 0℃～100℃ |
| μＶ | 2023 | 4096 | ±100μＶ |
Flex Test
| Sample | Number of complete breaks | ||
|---|---|---|---|
| A | VX Super V | Resistant to flex and twists | 36,800 |
| B | 7/0.3x1P VX-G | Most common flat cable | 350 |
| C | 30/0.18x1P VX-G-IS=VVR | Round shielded cable | 1,650 |
| D | 30/0.18x1P VX-G-IS=VV3R | Cable that uses a soft vinyl material for the sheath | 3,080 |
Testing device: Flex testing device based on the rubber/plastic insulated wire testing method (as per 4.27(a) of JIS C 3005)
Testing conditions: Test type B (r = 150 mm, I = 200 mm) – 20 revolutions/minute
* The measurement data represents actually measured values, not guaranteed values. From the test results, B is not recommended for use in wiring moving elements, although it is the most commonly used extension and compensating cable for thermocouples. With a thickness of 0.3 mm and a parallel structure, it delivered a completely unfavorable result for flex/twist actions. With the thinness and round structure, C and D delivered relatively good results; A, designed to resist flex and twists, exhibits remarkably better results.
* Please feel free to contact our Sales Department for multi-pair cables and other custom-made products not listed above.