Provided is a visual insulating spray lance for live working. A liquid guide tube and an air tube in a hollow operating rod are communicated with an inlet end of a spray nozzle; the operating rod is connected to a connecting rod and a display respectively through a fastener; a video optical transceiver fixedly arranged on the connecting rod is connected to the display through an optical fiber; the optical fiber is connected to an optical receiver, the optical receiver is connected to a chip for a video signal processor, the chip for a video signal processor is connected to a power divider having two output interfaces respectively connected to a display screen and a 4G communication module; a battery is connected to the optical receiver, the chip for a video signal processor, the power divider, the display screen, the 4G communication module, and a global positioning system (GPS) module.

During the electrodeposition and electrorefining processes of metals, the electrodes undergo severe corrosion effects. A protective device and included system are proposed, wherein the electrode protective device solves the problem, given that its design and material preferably fireproof and anticorrosive, protect the electrodes. The design encompasses the entire exterior shape of the electrode support bar including the straight parts of the electrode plate that arise from the area of the support bars on both sides.

Particular embodiments described herein provide for an electronic device that can be configured to enable a modular printed circuit board separation tool. The separation tool can include a main body and a plurality of separation blades that extend from the main body. Each of the plurality of separation blades can be tapered and configured to fit between connections of a testing housing and a power and signal supply housing and when pressure is applied to the main body, the separation blades slide between the connections of the testing housing and the power and signal supply housing and separate the testing housing and the power and signal supply housing.

Provided is a visual insulating spray lance for live working. A liquid guide tube and an air tube in a hollow operating rod are communicated with an inlet end of a spray nozzle; the operating rod is connected to a connecting rod and a display respectively through a fastener; a video optical transceiver fixedly arranged on the connecting rod is connected to the display through an optical fiber; the optical fiber is connected to an optical receiver, the optical receiver is connected to a chip for a video signal processor, the chip for a video signal processor is connected to a power divider having two output interfaces respectively connected to a display screen and a 4G communication module; a battery is connected to the optical receiver, the chip for a video signal processor, the power divider, the display screen, the 4G communication module, and a global positioning system (GPS) module.

Particular embodiments described herein provide for an electronic device that can be configured to enable a modular printed circuit board separation tool. The separation tool can include a main body and a plurality of separation blades that extend from the main body. Each of the plurality of separation blades can be tapered and configured to fit between connections of a testing housing and a power and signal supply housing and when pressure is applied to the main body, the separation blades slide between the connections of the testing housing and the power and signal supply housing and separate the testing housing and the power and signal supply housing.

A knockout seal installation device for installing a knockout seal in an open seal of an electrical box includes a tool that has a shaft which extends between a domed grip and a plate. The domed grip can be gripped by a user thereby facilitating the shaft to be directed toward an electrical box. A magnet is attached to the plate to magnetically engage a knockout seal thereby facilitating the knockout seal to be installed into an open seal in the electrical box.

A heat sink is provided that has a mounting surface to which a printed circuit board is attached with an adhesive. The heat sink has a defined insertion point for a tool with which the printed circuit board is pried away from the heat sink. A heat sink system, a headlamp, a vehicle, and a method for releasing a printed circuit board glued to a heat sink using a tool are also provided.