An electric cable for high-voltage applications is disclosed which comprises a core surrounded by an electrically insulating layer made of a composition based on a thermoplastic polymeric material charged with boron nitride powder in an amount up to 20 wt % with respect to the weight of the insulating composition, the boron nitride powder having a particle size distribution D50 up 0 to 15 m. Such a cable has improved thermal conductivity property as well as good dielectric resistance and workability in particular through extrusion processes.

An electric cable for high-voltage applications is disclosed which comprises a core surrounded by an electrically insulating layer made of a composition based on a thermoplastic polymeric material charged with boron nitride powder in an amount up to 20 wt % with respect to the weight of the insulating composition, the boron nitride powder having a particle size distribution D50 up to 15 m. Such a cable has improved thermal conductivity property as well as good dielectric resistance and workability in particular through extrusion processes.

Disclosed are cable types, including a type THHN cable, the cable types having a reduced surface coefficient of friction, and the method of manufacture thereof, in which the central conductor core and insulating layer are surrounded by a material containing nylon or thermosetting resin. A silicone based pulling lubricant for said cable, or alternatively, erucamide or stearyl erucamide for small cable gauge wire, is incorporated, by alternate methods, with the resin material from which the outer sheath is extruded, and is effective to reduce the required pulling force between the formed cable and a conduit during installation.

Disclosed are cable types, including a type THHN cable, the cable types having a reduced surface coefficient of friction, and the method of manufacture thereof, in which the central conductor core and insulating layer are surrounded by a material containing nylon or thermosetting resin. A silicone based pulling lubricant for said cable, or alternatively, erucamide or stearyl erucamide for small cable gauge wire, is incorporated, by alternate methods, with the resin material from which the outer sheath is extruded, and is effective to reduce the required pulling force between the formed cable and a conduit during installation.

A hydrocarbon fluid is disclosed that has a pour point of at most 30 C., as measured by ASTM D5950, and that comprises at least 99 wt % of naphthenes and paraffins, based on the total weight of the hydrocarbon fluid, wherein the weight ratio of naphthenes to paraffins is at least 1, as measured by GC-MS, and wherein the paraffins consist essentially of isoparaffins, as determined by GC-FID. In addition, preferred uses of said hydrocarbon fluid are disclosed.

Methods for dielectrically insulating electrical active parts The invention concerns methods for dielectrically insulating electrical active parts using certain fluorinated cyano-substituted ethers as well as compositions and apparatus comprising such compounds.

Methods for dielectrically insulating electrical active parts The invention concerns methods for dielectrically insulating electrical active parts using certain fluorinated cyano-substituted ethers as well as compositions and apparatus comprising such compounds.

A transformer oil basestock is disclosed that includes at least 99 wt % of naphthenes and paraffins, based on the total weight of the transformer oil basestock, wherein the weight ratio of naphthenes to paraffins is at least 1, as measured by GC-MS, and wherein the paraffins consist essentially of isoparaffins, as determined by GC-FID. In addition, a transformer oil composition is disclosed that includes the transformer oil basestock, an anti-gassing agent and an antioxidant.

A method for producing an electrotechnical fluid composition is described. The method includes subjecting a renewable feedstock including free fatty acids and glycerides to ketonisation under ketonisation conditions, subjecting the ketonised renewable feedstock to hydrotreatment under hydrotreatment conditions to obtain a renewable paraffinic intermediate product, and subjecting the renewable paraffinic intermediate product to at least one fractionation to obtain the electrotechnical fluid composition, wherein the electrotechnical fluid composition fulfils the requirements according to IEC60296(2012) international standard.

A method for producing an electrotechnical fluid composition is described. The method includes subjecting a renewable feedstock including free fatty acids and glycerides to ketonisation under ketonisation conditions, subjecting the ketonised renewable feedstock to hydrotreatment under hydrotreatment conditions to obtain a renewable paraffinic intermediate product, and subjecting the renewable paraffinic intermediate product to at least one fractionation to obtain the electrotechnical fluid composition, wherein the electrotechnical fluid composition fulfils the requirements according to IEC60296(2012) international standard.