Inter-8® Weave Cable
Substantially reduces magnetic field pickup and radiation compared with conventional twisted pair cable.
DESCRIPTIONA current-carrying twisted pair is superior to parallel conductors, but is of limited effectiveness in reducing electromagnetic radiation. Correspondingly, the twisted pair is limited in avoiding unwanted pickup of external H-fields (D.C. to 100 KHz).
INTER-8 WEAVE cable provides substantial improvement over the performance of a conventional twisted pair. INTER-8 WEAVE cable involves four separate conductors braided into interlocking loops and is a patented design of Magnetic Shield Corporation. In application, adjacent conductors 90º apart are connected together, effectively providing a two conductor circuit.
Because the INTER-8 WEAVE design incorporates parallel conductors, the cable provides double the current carrying capacity of a two wire cable of the same AWG size. In contrast to conventional twisted pair, INTER-8 WEAVE does not kink or untwist when left free.
APPLICATIONS
INTER-8 WEAVE cable has applications to many interference problems. Current-carrying conductors generating interference fields can be replaced with INTER-8 WEAVE cable to substantially reduce radiation. In low impedance circuits where external interference results in disturbing signals, INTER-8 WEAVE cable will reduce the circuit sensitivity to the external fields.
Among typical applications are cable connections to strain gages, thermocouples, photoelectric detectors, audio coils and transformers, piezoelectric transducers and preamplifiers.
TYPES OF CABLE
The basic INTER-8 WEAVE cable is unshielded. It is also stocked with an outer braided shield of CO-NETIC AA high permeability wire to provide magnetic shielding.
Inter-8 Weave Cable In Use
Expanded view of configuration
» Connect green and brown wires at both ends to form one cable termination.
» Connect orange and blue wires at both ends for the other termination.
» PVC insulations are color coded in solid colors. ETFE insulations are color coded with stripes.
SPECIFICATIONS
| PVC W/ POLYURETHANE JACKET | ETFE* | |||
|
S H I E L D E D J C | U N S H I E L D E D C | WIRE | 24AWG QQ-W-343 | 24AWG QQ-W-343 |
| STRANDING | 7X32 TINNED COPPER | 19X36 TINNED COPPER | ||
| INSULATION | 105°C MIL-W-16878/1 | 150°C MIL-W-22759/16 | ||
| COLORS | SOLID COLORS: GREEN, BROWN ORANGE, BLUE | WHITE WITH STRIPES: GREEN, BROWN ORANGE, BLUE | ||
| BINDING | MYLAR TAPE MIL-I-631 | MYLAR TAPE MIL-I-631 | ||
| BRAIDED SHIELDING | 36 AWG CO-NETIC AA WIRE MIL-N-14411, COMP.I 90% COVERAGE | 36AWG CO-NETIC AA WIRE MIL-N-14411, COMP.I 90% COVERAGE | ||
| JACKET | .020 IN./0,508 MM THICK MIL-C-13777 POLYURETHANE COLOR IS BLACK | .010 IN./0,254 MM THICK MIL-C-27500G/14 COLOR IS RED | ||
| OUTSIDE DIAMETER | .230 IN./5,84 MM MAXIMUM | .210 IN./5,33 MM MAXIMUM | ||
Section of Shielded-Jacketed Cable
| Standard Types. Other Gauges Available. | ||||||
| Part No. | AWG | Conductors | Coating | Insulation | Shield | Jacket |
| MT-24 | 24 | 7 STRANDS 32 | TINNED | PVC | NONE | NONE |
| MT-24-T | 24 | 19 STRANDS 36 | TINNED | ETFE | NONE | NONE |
| MTH-24 | 24 | 7 STRANDS 32 | TINNED | PVC | CO-NETIC | BLACK |
| MTH-24-T | 24 | 19 STRANDS 36 | TINNED | ETFE | CO-NETIC | RED |
Spira-Shield Flexible Conduit
SPIRA-SHIELD is flexible conduit that provides high permeability magnetic shielding for sensitive cables and conductors.Constructed of .010" thick CO-NETIC AA Alloy, SPIRA-SHIELD provides greater attenuation than braided sleeving and also furnishes physical protection.
Among typical applications are ground support and communication equipment, shipboard control systems, audio-level interconnections, sensitive instrumentation and aerospace apparatus.
Meets MIL-N-14411, Composition I. Priced per linear foot.
| Stock Sizes. Other Diameters Available. | |||
| Part No. | I.D. | O.D. | Inside Bend Radius |
| SSC-250 | 1/4in. / 6,4 mm | 3/8 in. / 9,5 mm | 2 1/2in. / 64 mm |
| SSC-375 | 3/8 in. / 9,5 mm | 1/2 in. / 12,7 mm | 3 in. / 76 mm |
| SSC-750 | 3/4 in. / 19 mm | 7/8 in. / 22,2 mm | 7 in. / 178 mm |
Co-Netic® Braided Sleeving
Tubular sleeving is braided from 36 or 34 AWG CO-NETIC AA high permeability wire.Shield coverage is 85 to 90% at nominal I.D. Diameter can be expanded by compressing both ends toward center of sleeving.
Braided sleeving provides superior flexibility compared to foil that is spiral or channel wrapped around cable.
Braid complies with A-A59569. Wire meets MIL-N-14411, Composition I. Priced per linear foot.
| Standard Sizes. Other Diameters & Configurations Available. | ||||||
| Part # | Nominal I.D. | Expands to | Coverage | Ends | Carriers | AWG |
| WBS-250 | 1/4 in. / 06,3 mm | 5/16 in. / 7,9 mm | 85/90% | 16 | 24 | 36 |
| WBS-500 | 1/2 in. / 12,7 mm | 5/8 in. / 15,8 mm | 85/90% | 11 | 48 | 36 |
| WBS-750 | 3/4 in. / 19,0 mm | 7/8 in. / 22,2 mm | 85/90% | 11 | 48 | 34 |
Co-Netic® AA Wire
CO-NETIC AA wire in .005" diameter is widely used in magnetic shielding braid applied over cables. All gauges have applications where high permeability, low coercive force and ferromagnetic properties are required. CO-NETIC AA wire is corrosion resistant and has an affinity for solder.Meets MIL-N-14411, Composition I. Priced per pound.
| Stock gauges and Types | ||||
| Part No. | Diameter | AWG | Anneal | Packaging |
| WC-005 | .005 in. / 0,127 mm | 36 | PERFECTION | SPECIFY |
| WC-025 | .025 in. / 0,635 mm | 22 | PERFECTION | SPECIFY |
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