Data communication cables include twisted wire pairs, a fire retardant tape, a metallized tape shield, a braided metallic shield, and a jacket layer. The fire retardant tape surrounds the twisted wire pairs has an overlap of about 15% to about 25%. The data communication cables are also halogen-free and may pass the fire retardant standards of National Fire Protection Agency (“NFPA”) 130.

A tape having a first face comprising a continuous surface of mica paper and a second face comprising a support layer, wherein the mica paper comprises 70 to 99 weight percent mica and 1 to 30 weight percent binder and the support layer comprises a film, a paper, a nonwoven fabric, or a woven fabric; wherein the initial elongation of the support layer is equal to or less than the initial elongation of the mica paper; and wherein the support layer is demountably attached to the mica paper such that when a delamination force of 10 N/10 mm or less is imposed on the support layer it can be separated from the mica paper.

Data communication cables for transit applications are disclosed. The data communication cables are halogen-free and include a fire retardant tape. The cables pass the fire retardant standards of NFPA 130. Methods of making and using the cables are also disclosed.

Data communication cables include twisted wire pairs, a fire retardant tape, and a jacket layer. The fire retardant tape surrounds the twisted wire pairs has an overlap of about 15% to about 25%. The data communication cables are also halogen-free and may pass the fire retardant standards of National Fire Protection Agency (NFPA) 130.

A separator for electrochemical elements includes beaten solvent-spun cellulose fibers and rayon fibers having a fiber diameter of 9.5 m or less. More preferably, the separator for electrochemical elements has a content of the rayon fibers relative to all fibers of 10 to 25% by mass, and can be applied to electrochemical elements such as electric double layer capacitors, hybrid capacitors, redox capacitors, and lithium secondary batteries. The separator can provide low internal short circuit failure rates and high surface strength.

A thermally conductive, electrical insulating nonwoven material is described that comprises 20 wt. %-50 wt. % organic components, wherein the organic components comprise wherein the organic components comprise organic drawn fibers, organic bi-component binder fibers, and a polymer latex binder comprising at least one of an acrylic latex, an acrylic copolymer latex, a nitrile latex, and a styrene latex; and 50 wt. %-80 wt. % inorganic components wherein the inorganic components comprise a blend of thermally conductive fillers and clay. The organic bi-component binder fibers have a polymeric core and a sheath layer surrounding the polymeric core wherein the sheath layer has a lower melting point than the core.

The present invention is a combination of a shape-memory alloy (SMA) element and a fiber sleeve. The SMA connects at each end to a support element, the support elements being moveable relative to each other. The fiber sleeve comprises an electrically insulating sleeve made of flexible fiber material, and is sized so that the sleeve surrounds at least a portion of the SMA element. When the SMA element is deformed upon heating or cooling, causing the support elements to move relative to each other, the fiber sleeve also deforms and continues to surround the portion of the SMA element, inhibiting the flow of electric current from the SMA element to its surroundings.

A cable includes: a core; a first insulating layer that has a property biased toward positive polarity or negative polarity in a triboelectric series and coats the core; an (n+1)-th insulating layer that has a property biased toward a polarity opposite to a polarity of an n-th insulating layer and coats the n-th insulating layer, N being a natural number not less than 2, n being 1, . . . , N1; a braid that coats the N-th insulating layer; and a sheath that coats the braid.

Data communication cables for transit applications are disclosed. The data communication cables are halogen-free and include a fire retardant tape. The cables pass the fire retardant standards of NFPA 130. Methods of making and using the cables are also disclosed.

A bushing comprises an electrical conductor and a condenser body through which the electrical conductor extends, wherein the condenser body comprises electrically insulating layers and electrically conducting layers, wherein the electrically insulating layers comprise an oil-impregnated paper comprising at least one of a thermally upgraded paper and a paper comprising synthetic fibers.