Type K compensating conductor
Description
Cable use: The series products of compensation wire and cable are suitable for the temperature control system of energy, metallurgy, petroleum, chemical industry and other factories, mining enterprises and scientific research departments. It is used for the connection between the cold end and the temperature measuring instrument. Heat resistant type adopts fluorine plastic insulation and sheath with excellent heat resistance, waterproof, anticorrosion, acid and alkali resistance, chemical resistance, wear resistance, aging resistance and non-combustion properties. Two, compensation wire cable implementation standard: GB/T4989/94 equivalent IEC584.3 Three, compensation wire cable use characteristics: 1, compensation cable use characteristics
type | Bending radius | temperature | temperature | ||
unarmoured | armored | Fixed laying | Non-fixed laying | ||
There are "105" in the general model and "90" in the high-temperature model | Outer diameter 6 times Outer diameter 10 times outer diameter of the cable | Outer diameter of cable 12 times | ≥-40℃ ≥-60℃ | ≥-15℃ ≥-20℃ | ≤70℃ |
2. Product code and meaning:
project | Code name | Code meaning | project | Code name | Code meaning |
Model number | SC | With S - indexing thermocouple compensation wire | Heat resistance class | 70 | The operating temperature is 70℃ |
RC | Use R - index thermocouple compensation conductor | 105 | The operating temperature is 105℃ | ||
NC | Use N - index thermocouple compensation conductor | 200 | The operating temperature is 200℃ | ||
NX | Use N - index thermocouple compensation conductor | 250 | The operating temperature is 250℃ | ||
KCA | With K - mark thermocouple compensation wire | Insulating material | V | Polyvinyl chloride | |
KX | With K - mark thermocouple compensation wire | Y | polyethylene | ||
EX | Use E - index thermocouple compensation conductor | B | polypropylene | ||
JX | A J - index thermocouple compensation conductor is used | F4 | Teflon | ||
T | With T - mark thermocouple compensation wire | F46 | Polyperchloroethylene propylene | ||
Serial code | ZR | Flame-retardant cable | Sheath material | V | Polyvinyl chloride |
ia | Intrinsic cable | B | Glass fibre | ||
Usage classification | G | General use | F4 | Teflon | |
H | Heat resistant | F46 | Polyperchloroethylene propylene | ||
Precision class | S | j-grade | Shielding material | P | Copper wire braid |
P1 | Tinned copper wire braid | ||||
/ | Ordinary grade | P2 | Copper tape is wrapped | ||
P3 | Aluminum/plastic composite film wrap | ||||
specification | 2 x conductor cross-sectional area mm2 | Type of conductor | Single conductor may be omitted | ||
R | Multiple stranded conductor | ||||
armor | 22 | Steel tape armor | |||
32 | Fine steel wire armor |
Four, compensation wire cable technical indicators:
1. Type, alloy wire material and insulation color
Compensating conductor type | With a thermocouple | Thermocouple indexing number | Compensating wire alloy wire | Insulation color | ||
Positive order | Negative order | Positive order | Negative order | |||
SC | Platinum-rhodium 10-platinum thermocouple | S | SPC (Copper) | SNC | red | green |
RC | Rhodium 13-platinum thermocouple | R | RPC (copper) | RNC (copper-nickel) | red | green |
KCA | Nichcr - nichsi thermocouple | K | KPCA (iron) | KNCA (Copper nickel) | red | blue |
KCB | KPCB (copper) | KNCB (Copper nickel) | red | blue | ||
KX | KPX (nichrome) | KNX (nickel silicon) | red | black | ||
NC | Nickel-chromium-silicon - nickel-silicon thermocouple | N | NPC (Iron) | NNC (copper-nickel) | red | grey |
NX | NPX (nichrome silicon) | NNX (nickel silicon) | red | grey | ||
EX | Nichrome - copper-nickel thermocouple | E | EPX (NichCR) | ENX (Copper nickel) | red | brown |
JX | Iron-copper-nickel thermocouple | J | JPX (iron) | JNX (Copper-nickel) | red | The purple |
TX | Copper-copper-nickel thermocouple | T | TPX (Copper) | TNX (Copper nickel) | red | white |
2, the use of classified layer color
Usage classification | Accuracy grade and mark | Jacket color | |||
Ordinary grade | j-grade | Ordinary grade | j-grade | ||
General use | G | / | S | black | grey |
Heat resistant | H | / | S | black | yellow |
V. Model name of compensation wire and cable:
Product model | Product name |
KXVV | Polyvinyl chloride insulation and sheathing are common for compensatory conductors and cables for thermocouples with K index |
KXVV22 | PVC insulated and sheathed steel tape sheathed compensation cable for common grade K grade thermocouple |
KXVPV | Compensation conductors and cables for PVC insulated and sheathed copper braided sub-shielding common grade K - grade thermocouples |
KXVPV22 | PVC insulated and sheathed copper wire braided section-shielded steel tape sheathed compensation cable for common grade K division mark thermocouple |
KXVVP | Compensation cable for PVC insulated and sheathed copper wire braided total shielding common grade K index thermocouple |
KXVV22P | PVC insulated and sheathed copper wire braided total screen sheathed steel tape sheathed compensation cable for common grade K grade thermocouple |
KXVPVP | Compensation cables for PVC insulated and sheathed copper wire braided sub-shielding and total shielding common grade K sub-mark thermocouples |
KXVPV22 | Compensation cable for PVC insulated and sheathed copper wire braided separately shielded and steel tape armoured with total shielded ordinary K division number thermocouple |
KXFF | Compensation conductors and cables for fluorine plastics and sheathing common grade K - part thermocouples |
KXFPF | Compensation conductors and cables for fluorine plastics and sheathed copper braided sub-shielding common grade K - grade thermocouples |
KXFFP | Fluorine plastics and sheathed copper wire braided total shielding ordinary grade K - index thermocouple compensation wires and cables |
KXFPFP | Compensation cables for fluorine plastics and sheathed copper wire braided sub-shielding and total shielding common grade K sub-marking thermocouples |
Vi. Model description of compensation conductor and cable:
classification | Code name | classification | Code name | classification | Code name | |||
Fire resistance symbol | Non-flame retardant | omission | Serial code | X/C | sheathing | Polyvinyl chloride | V | |
Flame retardant | ZR | Insulating material | Fluorine plastics | F | Low smoke and low halide polyvinyl chloride | VD | ||
Class A flame retardant | ZA | Polyvinyl chloride | V | Low smoke halogen-free polyolefin | E | |||
Class B flame retardant | ZB | Low smoke and low halide polyvinyl chloride | VD | Fluorine plastics | F | |||
Class C flame retardant | ZC | Low smoke halogen-free polyolefin | E | Heat resistance | 70 ℃ | omission | ||
Screen material | Copper wire/tin plating | P | armor | Steel tape armor | 22 | 105℃, 90℃ | 90 | |
Copper tape/copper plastic | P2 | Fine steel wire armor | 32 | 105 ℃ | 105 | |||
Aluminum tape/aluminum plastic | P3/P1 | Intrinsic cable | IA | 205 ℃ | FF | |||
Specifications:
Cross section (mm2) | Conductor diameter (mm) | Logarithmic range | Core number range | Special restriction |
0.5 | 1/0.80 or 7/0.30 | 1,2,3, ~ 24 | 2 | When the core is less than 4 pairs do not armor |
0.75 | 1/0.97 or 7/0.37 | |||
1.0 | 1/1.13 or 7/0.43 | |||
1.5 | 1/1.38 or 7/0.52 | |||
2.5 | 1/1.78 or 7/0.68 |
Seven, compensation wire cable delivery length:
Cables should generally be no less than 100 meters, allowing short delivery of more than 10 meters. The quantity shall not exceed 10% of the total delivery, and the measurement error shall not exceed ±5%. If there are special requirements, both parties can negotiate separately.
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