A wire or cable comprising an insulation layer and a semiconducting shield layer over and in contact with the insulation layer and strippable from the insulation layer, the second semiconducting shield layer made from the composition comprising: (A) 45-52% ethylene vinyl acetate (EVA) comprising 28-45% units derived from vinyl acetate (VA) based on the weight of the EVA; (B) 30-45% carbon black having (1) 80-1 15 milliliters per 100 grams (ml/100 g) DBP absorption value, (2) 30-60 milligrams per gram (mg/g) iodine absorption (I2NO), and (3) 0.3-0.6 grams/milliliter (g/ml) apparent density; (C) 5-20% acrylonitrile butadiene rubber (NBR) comprising 25-55% units derived from acrylonitrile (AN) based on the weight of the NBR; (D) 0.2-2% phenolic antioxidant; and (E) 0.5-2% organic peroxide.

A wire or cable comprising an insulation layer and a semiconducting shield layer over and in contact with the insulation layer and strippable from the insulation layer, the second semiconducting shield layer made from the composition comprising: (A) 45-52% ethylene vinyl acetate (EVA) comprising 28-45% units derived from vinyl acetate (VA) based on the weight of the EVA; (B) 30-45% carbon black having (1) 80-1 15 milliliters per 100 grams (ml/100 g) DBP absorption value, (2) 30-60 milligrams per gram (mg/g) iodine absorption (I2NO), and (3) 0.3-0.6 grams/milliliter (g/ml) apparent density; (C) 5-20% acrylonitrile butadiene rubber (NBR) comprising 25-55% units derived from acrylonitrile (AN) based on the weight of the NBR; (D) 0.2-2% phenolic antioxidant; and (E) 0.5-2% organic peroxide.

A cable includes a sheath, and a coating film covering a circumference of the sheath. The coating film adheres to the sheath. The static friction coefficient of a surface of the coating film is smaller than the static friction coefficient of a surface of the sheath. The adhesion strength between the sheath and the coating film is 0.30 MPa or more.

A communications cable is provided that includes a pair of twisted pair of wires, each coated with a fluoropolymer insulator. The twisted pair of wires is configured to carry a differential signal, such as a differential data signal and/or a differential power signal. The fluoropolymers are highly effective insulators and significantly reduce both the effects of internal and external electromagnetic interference while maintaining low cable attenuation, even when operating within a temperature range of ?40? C. to 150? C.

A communications cable is provided that includes a pair of twisted pair of wires, each coated with a fluoropolymer insulator. The twisted pair of wires is configured to carry a differential signal, such as a differential data signal and/or a differential power signal. The fluoropolymers are highly effective insulators and significantly reduce both the effects of internal and external electromagnetic interference while maintaining low cable attenuation, even when operating within a temperature range of ?40? C. to 150? C.

A method of installing a fire resistant coaxial cable is described in which the cable has a 2-part dielectric made of a polymer foam and a ceramifiable silicone rubber. The polymer foam, which can be polypropylene or other polymers, leaves little-to-no residue in the cable that causes electromagnetic loss when upon burning. The polymer foam can be extruded over a center conductor using an inert gas, such as nitrogen, to propagate the foam, ensuring little-to-no residue in the cable. The ceramifiable silicone rubber can be extruded over the polymer foam. The cable is configured to maintain a relatively coaxial relation between a center conductor and an outer conductor even under aforementioned fire tests. Another layer of ceramifiable silicone rubber can surround the outer conductor and continue to insulate it from the outside if a low-smoke zero-halogen (LSZH) jacket outer layer burns away.

Provided are a composition for an electric wire coating material containing polyvinyl chloride, the composition having excellent fusibility resistance, heat deformability resistance, and flexibility without crosslinking polyvinyl chloride therein, and an insulated electric wire in which this composition is used. In the composition for an electric wire coating material containing polyvinyl chloride, the composition contains a plasticizer in an amount of 40 to 80 parts by mass with respect to 100 parts by mass of the polyvinyl chloride, and a polyester elastomer.

In accordance with example embodiments of the present disclosure, the invention allows effective sending and receiving of radio signals commonly associated with those sent and received by antennas. The utility of the invention includes a versatile antenna wire comprised of an embedded formed electrical conductor within a protective, non-electrically conductive sheath or structural element that facilitates shorter-than-typical antenna designs. The versatile antenna wire can facilitate antenna radiators that are up to 80 percent shorter than traditional wire radiatorswhile still providing exceptional operating characteristics. In some embodiments, the antenna wire is a specifically contoured conductive material. Electrically conductive material may be wire; metalized tape; metalized foil; electrically conductive polymer; or conductive ink or coating.

A pressure-sensitive sensor includes a long hollow insulation that is elastically deformable and includes a hollow portion extending continuously in a longitudinal direction, a plurality of electrode wires that are provided along the inner peripheral surface of the hollow portion throughout the longitudinal length and are arranged facing each other with a distance therebetween so as to come into contact with each other when bent with elastic deformation of the hollow insulation, each electrode wire being formed by providing a conductive cover around a conductor, and an outer layer formed to cover an outer surface of the hollow insulation. The hollow insulation includes an insulating composition (A) including a styrene-based thermoplastic elastomer (a1). The outer layer including an insulating composition (C) including a thermoplastic polyurethane (c1) and an acid-modified polymer (c2) that is modified with an unsaturated carboxylic acid or a derivative thereof.

A pressure-sensitive sensor includes a long hollow insulation that is elastically deformable and includes a hollow portion extending continuously in a longitudinal direction, a plurality of electrode wires that are provided along the inner peripheral surface of the hollow portion throughout the longitudinal length and are arranged facing each other with a distance therebetween so as to come into contact with each other when bent with elastic deformation of the hollow insulation, each electrode wire being formed by providing a conductive cover around a conductor, and an outer layer formed to cover an outer surface of the hollow insulation. The hollow insulation includes an insulating composition (A) including a styrene-based thermoplastic elastomer (a1). The outer layer including an insulating composition (C) including a thermoplastic polyurethane (c1) and an acid-modified polymer (c2) that is modified with an unsaturated carboxylic acid or a derivative thereof.