A manufacturing of wires with optimized insulation properties, providing an insulating wire and the wire drawing process for producing it. The wire enamel has three layers: base layer (2), middle layer (3) and top layer (4), wherein these layers wrap around the conducting wire (1) in this order. The wire drawing process is carried out by a) Primary drawing; b) Final drawing and c) Enameling process carried out in line, wherein the enameling is conducted preferably with a specific number of dies for each layer. The process and composition conditions of the wire allowed to provide a triple layer wire that presents high resistance to partial discharges, high thermal class and high resistance to abrasion, thus, increasing the service lifetime of the wire in demanding motor applications when high thermal, high mechanical and high electrical resistance are required.

A manufacturing of wires with optimized insulation properties, providing an insulating wire and the wire drawing process for producing it. The wire enamel has three layers: base layer (2), middle layer (3) and top layer (4), wherein these layers wrap around the conducting wire (1) in this order. The wire drawing process is carried out by a) Primary drawing; b) Final drawing and c) Enameling process carried out in line, wherein the enameling is conducted preferably with a specific number of dies for each layer. The process and composition conditions of the wire allowed to provide a triple layer wire that presents high resistance to partial discharges, high thermal class and high resistance to abrasion, thus, increasing the service lifetime of the wire in demanding motor applications when high thermal, high mechanical and high electrical resistance are required.

A device (1) and a method for producing enameled wires, comprises an application device (3) for applying at least one enamel coating, a furnace (4) for solidifying the enamel coating and an exhaust gas purification device (7) for removing at least nitrogen oxides from an exhaust gas (9) of the furnace (4). The exhaust gas purification device (7) has a unit (13) for the selective catalytic reduction of nitrogen oxides in the exhaust gas (9) of the furnace and a feeding apparatus (11) for feeding a reducing agent, preferably an ammonia-containing compound, in particular a urea solution, into the exhaust gas (9) of the furnace (4). The feeding apparatus (11) has at least one outlet opening, which is designed in such a way that the reducing agent exits from the outlet opening substantially in the flow direction of the exhaust gas (9).

An insulated copper wire is an insulated copper wire having a copper wire and an insulating film coating a surface of the copper wire, in which the insulating film contains a polymer material having an amide bond, on a peeled surface formed on a surface of the insulated copper wire by peeling off the insulating film, there more copper atoms bonded to a nitrogen atom or a carbon atom than copper atoms bonded to an oxygen atom, an oxygen-containing layer containing 10 atom % or more of oxygen in a depth direction from the peeled surface is formed, and a film thickness of the oxygen-containing layer is in a range of 2 nm or more and 30 nm or less. An electric coil is formed by winding the above-described insulated copper wire.

A conductive portion of a circuit body is formed by performing spraying on a surface of a resin casing. For spraying of the conductive portion, a cold spray method in which metal powder and inert gas are sprayed to an object is used. A circuit component is mounted on the conductive portion. Each terminal portion of the conductive portion is provided with a connector for connection with an external circuit body. An insulating resin is laminated on a surface of the conductive portion. The circuit body is directly formed on the surface of the resin casing by a series of processes described above.

Provided is an electrodeposition dispersion including a polyamide-imide resin, a polar solvent, water, a poor solvent, and a base, in which the polar solvent is an organic solvent having a boiling point of higher than 100° C. and D.sub.(S-P) represented by a formula (1) satisfying a relationship of D.sub.(S-P)<6, and a weight-average molecular weight of the polyamide-imide is 10×10.sup.4 to 30×10.sup.4 or a number-average molecular weight of the polyamide-imide is 2×10.sup.4 to 5×10.sup.4.
D.sub.(S-P)=[(dD.sup.S−dD.sup.P).sup.2+(dP.sup.S−dP.sup.P).sup.2+(dH.sup.S−dH.sup.P).sup.2].sup.1/2  (1)

Provided is an electrodeposition dispersion including a polyamide-imide resin, a polar solvent, water, a poor solvent, and a base, in which the polar solvent is an organic solvent having a boiling point of higher than 100° C. and D.sub.(S-P) represented by a formula (1) satisfying a relationship of D.sub.(S-P)<6, and a weight-average molecular weight of the polyamide-imide is 10×10.sup.4 to 30×10.sup.4 or a number-average molecular weight of the polyamide-imide is 2×10.sup.4 to 5×10.sup.4.
D.sub.(S-P)=[(dD.sup.S−dD.sup.P).sup.2+(dP.sup.S−dP.sup.P).sup.2+(dH.sup.S−dH.sup.P).sup.2].sup.1/2  (1)

A method of manufacturing an insulated conductive component having an electrically conductive element is provided. The method includes applying a first layer of a first material comprising a thermally conductive ceramic on a portion of the conductive element, and applying a second layer of a second material comprising a polymeric resin over the first layer. The method includes curing the conductive element to infuse the second material into the first material to define an electrically insulative, thermally conductive coating on the portion of the electrically conductive element.

A method of manufacturing an insulated conductive component having an electrically conductive element is provided. The method includes applying a first layer of a first material comprising a thermally conductive ceramic on a portion of the conductive element, and applying a second layer of a second material comprising a polymeric resin over the first layer. The method includes curing the conductive element to infuse the second material into the first material to define an electrically insulative, thermally conductive coating on the portion of the electrically conductive element.

A single coated conductor for an overhead power transmission or distribution line is provided comprising one or more electrical conductors (400) and a first coating (401) provided on at least a portion of the one or more electrical conductors (400). The first coating (401) comprises: (i) an inorganic binder comprising an alkali metal silicate; (ii) a polymerisation agent comprising nanosilica (“nS”) or colloidal silica (SiO.sub.2); and (iii) a photocatalytic agent, wherein the photocatalytic agent comprises ≥70 wt % anatase titanium dioxide (TiO.sub.2) having an average particle size (“aps”) ≤100 nm. The first coating (401) has an average thermal emissivity coefficient E≥0.90 across the infrared spectrum 2.5-30.0 μm and has an average solar reflectivity coefficient R≥0.90 and/or an average solar absorptivity coefficient A≤0.10 across the solar spectrum 0.3-2.5 μm.