Wrapped PTFE Wires

Polytetrafluoroethylene (PTFE) is a synthetic fluoropolymer of tetrafluoroethylene that finds numerous applications. PTFE is a fluorocarbon solid, as it is a high-molecular-weight compound consisting wholly of carbon and fluorine. PTFE is hydrophobic: neither water nor water-containing substances wet PTFE, as fluorocarbons demonstrate mitigated London dispersion forces due to the high electronegativity of fluorine. PTFE has one of the lowest coefficients of friction against any solid.

PTFE is a thermoplastic polymer, which is a white solid at room temperature, with a density of about 2.2 g/cm3. According to DuPont, its melting point is 327 °C (621 °F), but its mechanical properties degrade above 260 °C (500 °F).[9] PTFE gains its properties from the aggregate effect of carbon-fluorine bonds, as do all fluorocarbons.

PTFE Wires are usually produced by spirally wrapping of PTFE tapes over Stranded Silver platted Copper wires or Nickel platted copper wires & Sintered.

PTFE Wire Specification made by Exotherm Instruments
Single Core - Equipment Wires

Conductor : SPC/NPC/
Insulation : P.T.F.E. Wrap Insulation
Properties : Resistant to Fire, Chemicals, Acids, Sunlight, Moisture & Corona
Type : Single Core
Voltage Grade : 250V / 600V / 1000V / As per customer requirement.
Temperature : -65° C To 200° C
Standard Applicable : JSS 51034 & MIL 16878 - D
Core Color : All single solid color / Bi Colors As per customer requirement.
Size : As per customer requirement
Approval : L.C.S.O / D.O.T / D.G.Q.A.






Available Sizes as per MIL-16878 D Standards
S. No. Size in AWG No. of strands/dia of each strand (mm) Parameters of conductor (Nominal)
(As per JSS 51034)
Nominal Dia of insulated Wire
Dia. (mm) Cross section (sq. mm.) Resistance ohm/km at 20° C Elongation (Min) ET
(250 V) AC
E
(600 V ) AC
EE
(1000 V) AC
1. 32/7/40 7/0.08 0.24 0.0340 570.9 5.5 0.56 0.74 1.00
2. 30/1 1/0.25 0.25 0.0507 356.4 9.0 0.56 0.75 1.00
3. 30/7/38 7/0.1 0.30 0.0568 332.3 5.5 0.61 0.81 1.07
4. 28/1 1/0.32 0.32 0.0806 224.4 9.0 0.63 0.84 1.09
5. 28/7/36 7/0.13 0.38 0.0887 210.5 5.5 0.69 0.89 1.14
6. 26/1 1/0.4 0.40 0.1282 140.9 9.0 0.71 0.90 1.15
7. 26/7/34 7/0.16 0.48 0.1409 133.7 9.0 0.79 0.99 1.24
8. 26/19/38 19/0.1 0.50 0.1540 126.7 5.5 0.79 0.99 1.24
9. 24/1 1/0.5 0.50 0.2047 88.4 15.5 0.81 1.00 1.25
10. 24/7/32 7/0.2 0.60 0.2270 83.2 9.0 0.91 1.12 1.37
11. 24/19/36 19/0.13 0.63 0.2407 80.2 9.0 0.91 1.12 1.37
12. 22/1 1/0.65 0.65 0.3243 56.1 20.0 0.95 1.15 1.40
13. 22/7/30 7/0.25 0.75 0.3547 52.5 13.5 1.07 1.27 1.52
14. 22/19/34 19/0.16 0.80 0.3820 49.8 9.0 1.07 1.27 1.52
15. 20/1 1/0.8 0.80 0.5168 34.7 20.0 1.10 1.30 1.53
16. 20/7/28 7/0.32 0.97 0.5630 33.0 13.5 1.27 1.47 1.73
17. 20/19/32 19/0.2 1.00 0.6162 30.3 9.0 1.27 1.47 1.73
18. 18/7/26 7/0.4 1.20 0.8969 20.7 13.5 - 1.75 2.00
19. 18/19/30 19/0.25 1.25 0.9627 19.1 13.5 - 1.75 2.00
20. 16/19/29 19/0.29 1.45 1.2293 14.9 13.5 - 2.03 2.25
21. 16/37/32 37/0.2 1.40 1.200 15.0 13.5 - 2.00 2.20
22. 15/19/28 19/0.32 1.60 1.5272 12.5 13.5 - 2.15 2.40
23. 14/19/27 19/0.36 1.83 1.9412 9.5 13.5 - 2.42 2.69
24. 14/37/30 37/0.25 1.75 1.8886 10.0 13.5 - 2.35 2.60
25. 13/19/26 19/0.4 2.00 2.3864 7.8 13.5 - 2.60 2.85
26. 12/19/25 19/0.45 2.25 3.0848 6.0 13.5 - 2.90 3.17
27. 12/37/28 37/0.32 2.24 2.9742 6.5 13.5 - 2.85 3.12
28. 11/19/24 19/0.5 2.50 3.7287 5.0 13.5 - 3.15 3.40
29. 10/19/22 19/0.65 3.20 6.3015 3.0 - - 3.80 4.10
30. 10/37/26 37/0.4 2.82 4.7397 3.9 13.5 - 3.40 3.68
31. 8/133/29 133/0.29 4.29 8.6054 2.2 13.5 - 0 5.31
32. 6/133/27 133/0.36 5.41 13.5889 1.4 13.5 - 0 6.68

HV Test
Type Spark Test (0.2 Sec) Dielectric with stand for 1 minute
ET (250 V) 2.5 KVAC 1.5 KVAC
E (600 V) 3.4 KVAC 2.0 KVAC
EE (1000 V) 5.0 KVAC 3.0 KVAC


Property Value
Density 2200 kg/m3
Melting point 327 °C
Young's modulus 0.5 GPa
Yield strength 23 MPa
Coefficient of friction 0.05–0.10
Dielectric constant ε=2.1,tan(δ)<5(-4)
Dielectric constant (60 Hz) ε=2.1,tan(δ)<2(-4)
Dielectric strength (1 MHz) 60 MV/m


Advantages

The Products have number of advantages, few of them are

  • Excellent thermal stability suitable for use from (-) 65 Dig. C To ( ) 200 Deg. C for silver plated and ( ) 260 Dig. C for Nickel plated wires.
  • Suitable for very wide frequency range (DC to above 10000 MHZ) and over wide temperature range. Fire (flame) proof.
  • Inert to practically all Chemicals even at elevated temperatures.
  • Smaller in size, more flexible, lighter in weight and higher reliability.
  • Lowest Dielectric constant (2.1). Dissipation factor (below .0003).
  • Excellent flex life and totally uneffected by out door exposure to unlimited period.
  • Non contamination, non-toxic and bio compatible.
  • Good Mechanical strength.
  • Resistance to ultra radiation and stress cracking is excellent.
  • resistance to fungus and mould growth.


Applications
  • Hook up Wire for Control Panels
  • Wire Harness Assembly
  • Motor & Transformer Lead wires
  • Batteries, UPS & Invertors
  • Plenum Cables
  • Halogen Lamp Holders & Lanterns
  • Electric Cooker, Micro-wave Oven, Electric Thermos, Air-Conditioning Equipment
  • Computers, Laptops, PDA’s
  • Medical and scientific instruments
  • Aircraft Wiring, Defense & Signal Equipments.
  • Process Instrumentation
  • RTD, Thermocouples and Thermistors
  • Sensors & Igniters
  • Semiconductor & Electronics
  • Oven, Furnaces and other High Temperature applications.

Contact Us

Phone : 2889 1611
Fax : 2889 1612
E-mail: sales@exotherminstruments.com