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7094974 |
Polymer SP insulator
A polymer SP insulator comprising an FRP core 1 , a sheath 2 having a plurality of sheds 6 provided on outer periphery of FRP core 1 , and metal-end-fittings 3, 4 crimped to upper and lower...
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6822167 |
Making a composite insulator body
The method of manufacturing a composite insulator constituted by a rod surrounded by an insulating coating and provided at its two ends with two metal end fittings respectively consists in the...
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6737587 |
Cable sealing end
The invention relates to an outdoor sealing end ( 8 ) which is elevated on one side. Means ( 18 ) for fixing the cable ( 10 ) are designed on the base fittings ( 20 ). An electric duct ( 32 ) is...
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6657128 |
Hydrophobic properties of polymer housings
A housing for an electrical apparatus includes a sheath, at least one shed and a hydrophobic coating. The sheath includes a first electrically insulative material and an outer surface. The at least...
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6653571 |
High voltage electrical insulation material
An electrical insulation material which is suitable for high voltage applications, the material including (a) a polymeric material, and (b) an additive incorporated into the polymeric material, the...
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6576846 |
Two-layered elastic tubular covering for electric components, in particular terminations for electric cables, and related manufacturing method and mounting
A tubular elastic covering ( 730 ) for electric components ( 700 ), having on the whole predetermined values of mechanical and electric/environmental requirements, in which the mechanical...
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6534721 |
Hollow insulator and production method
In a high-voltage hollow insulator, which has an insulating body, with a hollow support element made of a thermosetting composition, and a potential control device, the potential control device is...
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6501029 |
High-voltage homogeneous co-curing composite insulator
A high-voltage homogeneous co-curing composite insulator includes first and second end fittings longitudinally separated by a spacer, a resin impregnated fiber core wound onto the end fittings and...
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6441310 |
Moisture activated barrier for electrical assemblies
An assembly is provided having a core and a housing. The housing has an internal passageway extending from a first housing end to a second housing end for receiving the core. A coating of an...
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6359232 |
Electrical insulating material and stator bar formed therewith
Resin-impregnated sheet materials, such as fabrics, films, paper and tapes, for forming electrical insulation that exhibits significantly improved voltage endurance performance. The present...
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6307157 |
Composite insulators and a process for producing the same
A composite insulator includes an insulating rod, end fittings crimped to opposite end portions of said insulating rod, and an elastic insulating material molded around the outer periphery of the...
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6303870 |
Insulator cover
An insulative cover is utilized to protect an insulator supporting an electrical power line relative to a support structure in an electrical power transmission system. A first end of the cover is...
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6229094 |
Torque prevailing crimped insulator fitting
An insulator having a torque-resistant or torque-prevailing crimped insulator end fitting; including a method of crimping the insulator end fitting so as to be resistant to torque tending to loosen...
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6225567 |
Polymeric weathershed surge arrester and method
An elastomeric surge arrester housing includes a sleeve having a tubular core and radiating sheds. The sleeve is molded in a first configuration and, when the core is radially stretched, assumes a...
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6218626 |
Insulator for electric transmission and distribution lines, with improved resistance to flexural stresses
A hollow insulator for electric transmission and/or distribution lines including an insulating hollow tube made of composite material which is coupled, at least at an end portion thereof, to a...
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6215075 |
Composite insulator
A weathershed for use in a composite insulator includes a molded polymer body. The body configuration is such that the leakage distance across the weathershed is increased, while at the same time...
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6156979 |
Bushing device and bushing assembly including it
The invention concerns a bushing device (12) designed to be fitted through a hole in a wall including a body (20) and a cover (18) each adapted to be disposed on one side of the wall and rod and...
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6153831 |
Composite insulator with 3-dimensional weave of S2 glass fibers and epoxy
A composite insulation of S2 glass fibers and epoxy is formed having a more nearly uniform coefficient of thermal expansion in all three planes for use in cryogenic superconductor applications. The...
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6064010 |
Composite insulator end fitting
An end fitting having a bore that forms a sleeve for the shank of an electrical insulator of composite structure. The bore has a substantially frustoconical wall that flares away from the bore...
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6040528 |
Insulating supporting structure for high-voltage apparatus including inorganic insulating layer formed on a surface of an organic insulating structure
An electrically insulating supporting structure for a high voltage electric apparatus having a high voltage charging part and a ground potential part, the structure being adapted to be disposed...
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6031187 |
Pole head for supporting conductors on poles for medium- and high-voltage overhead power lines
The present invention relates to a pole head for supporting conductors on poles for medium- and high-voltage overhead power lines, having at least one tubular portion which has a structural...
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6028269 |
Set of hollow and tapered composite insulators with a one piece core
A composite insulator includes a hollow and tapered core portion composed of fiber-reinforced plastics, and a sheath and sheds composed of an insulating polymeric material integrally molded on the...
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6011400 |
Bushing for an electrical high-frequency signal and a measuring instrument containing same
A bushing for an electrical high-frequency signal, with at least one conductive element carrying the electrical high-frequency signal, with at least one mechanical supporting element and with at...
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5986216 |
Reinforced insulator
A reinforced electrical insulator has a load sustaining mechanical core with a pair of attachment members located at its longitudinal ends. One of the attachment members extends longitudinally into...
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5945636 |
Electrical insulators with mechanical core and dielectric sheath
An electrical insulator in the form of a pintype insulator has a load sustaining mechanical core and a dielectric sheath overlying the mechanical core to protect the mechanical core from the...
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5915761 |
Method of producing a polymer LP insulator
The disclosed polymer LP insulator having an FRP rod, an insulation overcoat member made of rubber, which is arranged on an outer surface of the FRP rod, and securing metal members clamped at both...
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5902963 |
High voltage insulator
An improved high voltage insulator includes a central core and an insulating body fitted tightly around the central core. A flexible coating layer is interposed between a part of the central core...
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5885680 |
Electric isolator and its manufacturing method
The electric isolator (1) is manufactured from a support (2) made of laminated material and a continuous band made of elastomeric material (3) wound in several contiguous successive turns around...
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5776606 |
Insulating and anticorrosive composition for electrical devices
Insulating and anticorrosive composition for electrical devices consisting of two semifluid components that are mixed together at the time of application, wherein A) the first component includes...
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5736208 |
Heat shrinkable article
A heat shrinkable shed (2) is mounted on a power cable (12) and sealed thereto by a hot-melt adhesive (10). Four projections (8) are equispaced around the interior surface of the shed (2) to...
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5648132 |
Composite insulator, segment used for producing the same and method of producing the same by using the segment
A composite insulator having a core member and a housing member integrally arranged around the core member, the housing member being constructed by a trunk portion and a shed portion, has a...
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5637831 |
Electrical insulators
The present invention relates to a barrier for an insulator having a central portion or stem with a plurality of sheds extending therefrom. The barrier is, in use, located between adjacent sheds of...
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5633478 |
Composite electrical insulator and method of manufacturing same
A composite electrical insulator includes a metal fitting (3, 4) fixedly secured to a fiber-reinforced plastic rod (1) at one end thereof. The rod has a stress-relieved zone (8) situated opposite...
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5563379 |
Composite electrical insulator
A composite electrical insulator (1) includes a plastic rod (2), e.g., an FRP rod, which is covered by a sheath which includes a resilient and electrically insulating material. A metal fitting (4,...
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5539155 |
Metal fitting for composite insulators
A metal fitting for a composite electrical insulator (1) including a plastic rod (2), e.g., an FRP rod. The metal fitting (4) includes a radially inwardly deformable sleeve portion having a bore...
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5406033 |
Insulator structure and method of construction
A composite link and insulator, and method of construction, includes a fiberglass body. The body is formed by coating glass fibers with a liquid resin and winding the fibers around a plurality of...
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5389742 |
Composite electrical insulator
An electrical insulator comprising a cylindrical core (2) of an insulating refractory material, such as porcelain, onto a portion of the curved surface of which a sleeve (8) of insulating polymeric...
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5374780 |
Composite insulator structure and method of construction
A composite link and insulator, and method of construction, includes a fiberglass body. The body is formed by coating glass fibers with a liquid resin and winding the fibers around a plurality of...
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5336852 |
Electrical assembly with end collars for coupling ends of a weathershed housing to the end fittings
An electrical assembly, such as an insulator or a surge arrester, utilizing a pair of end collars for coupling an elastomeric weathershed housing to a pair of metallic end fittings, and for...
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5300912 |
Electrical cutout for high voltage power lines
An electrical cutout with a modular product design is provided with a constructional configuration for the insulator wherein the insulator is light in weight, has sufficient mechanical strength,...
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5233132 |
Composite insulator comprising a fiber-resin rod and an insulating coating molded thereover
A composite insulator (30) comprises a central rod (32) of fibers embedded in a synthetic resin with each end of the rod being fixed to a respective metal end-fitting (31) by a metal sleeve...
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5220134 |
Composite insulator and method for its manufacture
An insulator of the type composed of a core onto which a skirt made of insulating material and provided with fins is molded. The core comprises an axial rod of a composite material onto whose ends...
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5159158 |
Electrical assembly with insulating collar for coupling sections of weathershed housings
An electrical assembly, such as an insulator or a surge arrester, utilizing a plurality of elastomeric weathershed housings for enclosing a core member therein. The elastomeric weathershed housings...
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5023406 |
High voltage insulator
A high voltage porcelain insulator has a plurality of sheds extending laterally thereof at spaced apart locations therealong. The creepage path length of the shedded insulator is extended by...
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4973798 |
Rigid electrical insulator
A rigid electrical insulator of the type having a base or a pin at its bottom and having at least one groove (18 or 19) for receiving an electrical cable at its top, the insulator being...
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4958049 |
Elongated electrically insulating support structure and relevant preparation method
An elongated electrically insulating support structure, for use by itself as an electrical insulator or for use as a strength member in a composite electrical insulator made of...
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4956903 |
Method of producing an insulating bushing free from any risk of explosion
A method of producing a ceramic insulating bushing to be filed with dielectric gas under pressure and which is free from any risk of explosion, comprising the following operations: (1)...
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4845318 |
Composite electrical insulator and method of forming same
The invention provides an electrical insulator comprising a cylindrical core (2) of an insulating refractory material, such as porcelain, onto a portion of the curved surface of which a sleeve (8)...
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4833278 |
Insulator housing made from polymeric materials and having spirally arranged inner sheds and water sheds
An insulator housing comprising a resin bonded fibre tube carrying water repellent, spirally arranged inner sheds and water sheds made from strips of polymeric material provides improved outdoor...
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4827081 |
Helical insulator containing at least one optical fiber
A high voltage insulator that has a helical configuration in which successive turns are axially spaced apart, and an exposed surface of insulating and substantially non-tracking material. The...
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