Insulated Wire, innovative specialists in manufacture of microwave cable and cable assemblies, announce the publication of a new catalogue providing information on their “LOG SPEC” standard and custom high-performance wire products.
The high-level performance of Insulated Wire’s wire demonstrated since its introduction could not have been reached by following conventional constructions and test procedures currently in use for producing polytetrafluoroethylene (PTFE) insulated wire. The new insulation, which retains undiminished all the outstanding mechanical, thermal, chemical, and electrical properties of PTFE, lends itself admirably to uses where a reduction in bulk is needed along with an improvement in performance. It’s use in oil exploration is a case in point, for here, despite a reduction in bulk, the wire performs consistently where conventional wire sometimes fails.
As radical departures from conventional procedures were made in order to manufacture this wire, and since it was first made to fill the needs of the oil well logging industry. Insulated Wire has used “Log Spec” as the cable’s identifying trademark. The capability of the equipment required to produce Log Spec wire allowed for the manufacture of a wide variety of additional wire and cable types, such as a microwave coaxial cable used on a modern phased array radar antenna system manufactured for Navy shipboard use. Where it was chosen for its exceptional stability with fifteen-foot lengths matched, installed, field tested, and dismantled. The change in electrical length after going through the cycle several times was less than two electrical degrees. Two thousand feet of cable used for this purpose performed in the same way.
Insulated Wire’s manufacturing controls are exceptional as evidenced by the ability to run continuous four-mile lengths of PTFE insulated wire used in armoured geophysical cable. Some of these cables have seen service at temperatures of 300?C.
Insulated Wire’s advanced technology has allowed it the pleasure of manufacturing products to fit customer needs as opposed to customer design being restricted to the limitations of conventional wire and cable.
Introducing IW’s Log Spec PTFE Insulated Wire
Why a Log Spec wire?
- It was developed to provide a reliable, low-bulk, high-performance PTFE-insulated wire which was not available to the oil well logging industry. Hence, the trademark “Log Spec.”
How does Log Spec wire differ from conventional wire?
- It is a smooth, fused PTFE multi-ply laminate, indistinguishable in appearance from a good PTFE-extruded wire. It differs, however, in that it is concentric by construction, which helps to reduce bulk. Being a multi-ply laminated insulation it also provides remarkable performance and reliability
What are some of the uses of Log Spec wire?
- It fills the need for performance and reliability in all types of PTFE-insulated wire constructions.
- It provides a lower-bulk, lighter-weight wire.
- It provides long, continuous lengths of wire such as those incorporated in four-mile lengths of downhole armoured cable
- It provides wire for very low temperature requirements. submergence in liquid helium at 4.2?K in cryoelectronics, for instance.
- It permits the manufacture of a microwave cable ductile enough to be formed by hand, with low VSWR and low attenuation loss, and with negligible change in electrical characteristics with bending and forming.
- It provides for light and heavy-walled cores for microwave cable.
- It makes possible the manufacture of long lengths of PTFE-insulated high-current carrying conductors.
- It provides miniature coaxial and triaxial cables and miniature multi-conductor general-purpose cables.
- It allows for the identification of wire and cable with indestructible subsurface printing, colouring, and striping
- It makes possible the manufacture of long lengths of PTFE-insulated high-current carrying conductors
Log Spec wire meets the needs of the oil well logging industry for a multitude of downhole wires that can function reliably at temperatures of 260?C and pressures up to 25,000 psi, in environments that can include saline water, steam, hydrogen sulphide, methane, caustic elements, drilling muds and, can survive the shock and vibration incidental to multi-mile bore hole descents.
Insulated Wire serves a broad range of both defence and commercial markets. These include telecommunications, data-links, satellite systems, airborne electronics warfare and counter measures, missile systems, UAV applications, avionics and instrumentation, fire control systems, medical electronics and geophysical exploration.
In addition to internally ruggedised cables IW has a wide range of materials and processes to protect their cable assemblies. These include a variety of metallic and non-metallic external sheaths to meet customer’s requirements.
