The present invention relates to a wire or cable comprising a conductor coated with an insulation composition, wherein said insulation composition comprises: i) a polyethylene copolymer having a melting point of 105 C. or less; and ii) a hindered amine light stabiliser (HALS) comprising at least one 2,2,6,6-tetramethyl-piperidinyl group present in an amount of 0.5 to 1.5 wt %.

The resin composition contains: a resin component containing an ethylene-(meth)acrylate ester copolymer and at least one of an ethylene-propylene-diene terpolymer or ethylene-acrylate rubber; and a flame retardant, and the resin component is crosslinked. The tensile stress at 19% strain of the resin composition is 2.0 MPa or less, and the resin composition has heat resistance at 150 C. prescribed in JASO D624.

Provided are a core electric wire for multi-core cable that is superior in flex resistance at low temperature, and a multi-core cable employing the same. A core electric wire for multi-core cable according to an aspect of the present invention comprises a conductor obtained by twisting element wires, and an insulating layer that covers an outer periphery of the conductor, in which, in a transverse cross section of the conductor, a percentage of an area occupied by void regions among the element wires is from 5% to 20%. An average area of the conductor in the transverse cross section is preferably from 1.0 mm.sup.2 to 3.0 mm.sup.2. An average diameter of the element wires in the conductor is preferably from 40 m to 100 m, and the number of the element wires is preferably from 196 to 2,450. The conductor is preferably obtained by twisting stranded element wires obtained by twisting subsets of element wires. The insulating layer preferably comprises as a principal component a copolymer of ethylene and an -olefin having a carbonyl group.

Provided are a core electric wire for multi-core cable that is superior in flex resistance at low temperature, and a multi-core cable employing the same. A core electric wire for multi-core cable according to an aspect of the present invention comprises a conductor obtained by twisting element wires, and an insulating layer that covers an outer periphery of the conductor, in which, in a transverse cross section of the conductor, a percentage of an area occupied by void regions among the element wires is from 5% to 20%. An average area of the conductor in the transverse cross section is preferably from 1.0 mm.sup.2 to 3.0 mm.sup.2. An average diameter of the element wires in the conductor is preferably from 40 m to 100 m, and the number of the element wires is preferably from 196 to 2,450. The conductor is preferably obtained by twisting stranded element wires obtained by twisting subsets of element wires. The insulating layer preferably comprises as a principal component a copolymer of ethylene and an -olefin having a carbonyl group.

A coating mixture comprising at least one ceramic powder and a first and second binder that when applied to a substrate and heat treated produces a thin ceramic electrical insulation coating suitable for superconducting magnet applications.

A busbar with an insulation coating for a new energy automobile comprises a busbar body and a high-temperature-resistant insulating layer sprayed on the busbar body, and a raw material formula of the high-temperature-resistant insulating layer comprises 312% of high aluminum cement, 39% of attapulgite clay, 39% of porcelain clay, 25% of titanium dioxide, 26% of multi-walled carbon nanotubes, 26% of boron phosphate, 25% of n-methylol acrylamide, 39% of aluminum dihydrogen phosphate, 37% of tri-block copolymer styrene-butzdiene-methyl methacrylate, 37% of methylphenyl silicone resin, 37% of vinyl silicone oil, 1019% of polyvinyl acetate emulsion and balance of deionized water. The busbar of the present invention has good high temperature resistant performance and insulating performance.

Silver nanowires that are capable of significantly improving conductivity and visibility characteristics of a transparent conductor have attached to a surface thereof an organic protective agent, have an average diameter of 50 nm or less, an average length of 10 m or more, and the organic protective agent is 1.5 to 8.0% by mass based on the total amount of the organic protective agent and silver. The silver nanowires can be made by circulating silver nanowires with the attached organic protective agent in a circulation flow channel having in a middle thereof a crossflow filter, along with a liquid medium. Crossflow filtration is performed with the filter while replenishing the liquid medium to the circulation flow channel continuously or intermittently, so as to wash off/remove a part of the organic protective agent on the surface of the silver nanowires to control an amount of the organic protective agent attached.

In a flame retardant resin composition containing a polyolefin resin, a silicone-based compound blended at a ratio of 1.5 parts by mass or more and 20 parts by mass or less relative to 100 parts by mass of the polyolefin resin, a fatty acid containing compound blended at a ratio of 5 parts by mass or more and 20 parts by mass or less relative to 100 parts by mass of the polyolefin resin, and an inorganic flame retardant blended at a ratio of 5 parts by mass or more and 40 parts by mass or less relative to 100 parts by mass of the polyolefin resin, the decomposition onset temperature of the inorganic flame retardant is lower than the decomposition onset temperature of the silicone-based compound.

Polymeric compositions comprising a blend of high-density polyethylene (HDPE) with ethylene vinyl acetate (EVA), and optionally with a carbon black and/or one or more other additives, where the polymeric compositions have certain melt-index and vinyl-acetate-content ranges to improve melt strength and processability. Such polymeric compositions can be employed in manufacturing coated conductors, such as fiber optic cables.

A cable is used, in particular, as an underwater cable and contains a central element, which is surrounded by a cable sheath. The cable sheath has an inner hydrophobic sheath layer made of a first plastic and an outer sheath layer applied to same and made of a different plastic to the inner sheath layer. A polyolefin-type plastic is used for the inner sheath layer and one of the sheath layers, in particular the inner sheath layer is chemically functionalized, and a sealed connection is formed between the two sheath layers.