A joystick assembly is disclosed. In embodiments, the joystick controls a boom and aids in insulating a user from potential electric shock. Handle utilized by the operator may be made of, or at least one surface coated or covered in, material highly-resistant to electric current. The highly-resistant material may also extend to other components such as, a connecting rod, and a mounting base. The highly-resistant components may separate the operator from electrically charged components. As well as separating the operator from potentially electrically charged components, the rod may be received at the base by force measuring sensors, or strain measuring sensors may be attached to the rod. This allows the handle and rod to be stationary and, in embodiments, rigid, and only the applied force to be measured, thus decreasing the number of components needed in the assembly.

An electrical insulating tube is provided which isolates at least one conductor placed within the tube and a second conductor or elements that are placed outside the tube. The tube comprises a first conductive coating or foil placed on the inner surface or within the insulating tube material but substantially near its inner surface with this first conductive coating or foil electrically referenced to the conductor placed within the tube. The tube optionally comprises a second conductive coating or foil placed on the outer surface or within the tube material but substantially near its outside surface with this second conductive coating or foil electrically referenced to a conductor or electrical element placed outside the tube. Several embodiments and methods to make the tube are described.

An electrical insulating tube is provided which isolates at least one conductor placed within the tube and a second conductor or elements that are placed outside the tube. The tube comprises a first conductive coating or foil placed on the inner surface or within the insulating tube material but substantially near its inner surface with this first conductive coating or foil electrically referenced to the conductor placed within the tube. The tube optionally comprises a second conductive coating or foil placed on the outer surface or within the tube material but substantially near its outside surface with this second conductive coating or foil electrically referenced to a conductor or electrical element placed outside the tube. Several embodiments and methods to make the tube are described.

A method for developing an epoxy resin impregnated glass fiber Direct Current (DC) bushing, comprising: according to length parameters of each layer of capacitive screen or resistive screen designed depending on insulation requirements, selecting bushing design parameters, determining a winding machine program according to the bushing design parameters, and winding a core body according to the winding machine program, wherein during the core body winding process, the core body begins to be initially cured; after the core body is wound, curing the core body by an oven according to a preset oven temperature and duration; machining the cured core body according to a preset core body design drawing; after the inner wall of a flange is polished and cleaned and is heated and pretreated by the oven, injecting glue at the position of a glue injection hole of the flange for gluing the core body and the flange; sequentially assembling a collector ring, a hollow composite insulator, and a voltage-equalizing sealing cover on the glued core body, and mounting a conducting rod, a wiring board, and a voltage-equalizing ball; and performing various tests on the bushing according to a preset bushing standard for a DC system.

A method for developing an epoxy resin impregnated glass fiber Direct Current (DC) bushing, comprising: according to length parameters of each layer of capacitive screen or resistive screen designed depending on insulation requirements, selecting bushing design parameters, determining a winding machine program according to the bushing design parameters, and winding a core body according to the winding machine program, wherein during the core body winding process, the core body begins to be initially cured; after the core body is wound, curing the core body by an oven according to a preset oven temperature and duration; machining the cured core body according to a preset core body design drawing; after the inner wall of a flange is polished and cleaned and is heated and pretreated by the oven, injecting glue at the position of a glue injection hole of the flange for gluing the core body and the flange; sequentially assembling a collector ring, a hollow composite insulator, and a voltage-equalizing sealing cover on the glued core body, and mounting a conducting rod, a wiring board, and a voltage-equalizing ball; and performing various tests on the bushing according to a preset bushing standard for a DC system.

A conductive film including a film-like base material and a conductive layer provided on one main surface side of the base material is provided. The conductive layer includes a first metal layer containing a first metal and a second metal layer containing a second metal different from the first metal, provided in order from the base material side. The first metal layer includes grain boundaries.

A conductive film including a film-like base material and a conductive layer provided on one main surface side of the base material is provided. The conductive layer includes a first metal layer containing a first metal and a second metal layer containing a second metal different from the first metal, provided in order from the base material side. The first metal layer includes grain boundaries.

A conductive film includes a base material 1, a first resin layer 10 provided on the base material 1, a second resin layer 20 provided on the first resin layer 10 and having a trench 25 opening to a surface opposite to the first resin layer 10, and a conductive layer 30 provided in the trench 25. The first resin layer 10 contains a first resin portion 12 and a plurality of first inorganic particles 11. At least a part of the plurality of first inorganic particles 11 partially protrude from the first resin portion 12 toward the second resin layer 20.

A conductive film includes a base material 1, a first resin layer 10 provided on the base material 1, a second resin layer 20 provided on the first resin layer 10 and having a trench 25 opening to a surface opposite to the first resin layer 10, and a conductive layer 30 provided in the trench 25. The first resin layer 10 contains a first resin portion 12 and a plurality of first inorganic particles 11. At least a part of the plurality of first inorganic particles 11 partially protrude from the first resin portion 12 toward the second resin layer 20.

An enclosure for an AC to DC adapter has a continuous and seamless exterior surface. The enclosure includes a housing and a front wall that are joined by a bonded interface. The front wall is formed from a metallic interface plate and an exterior layer of plastic that is formed over the metallic interface plate and bonded to the housing.