Insulating High Voltage Electrical Isolator Outdoor Hookstick Operated Disconnect Switch

Outdoor High Voltage Electrical Isolator Distribution System Insulation And Conduction Operated Hookstick
 
 
 
Product Description:

 
High voltage electrical isolators are commonly used in power transmission and distribution systems, where they provide a means of supporting and isolating high voltage power lines and equipment. They are designed to withstand high levels of voltage and electrical current, and are typically used in applications where reliability and safety are critical.
The construction of high voltage electrical isolator typically involves several key components, including a porcelain insulating body, metal end fittings, and a sealing compound. The insulating body is typically made of high-strength porcelain, which is molded into the desired shape and size and coated with a glaze to improve its electrical and mechanical properties. The metal end fittings are then attached to the insulating body, providing a means of attaching the isolator to the supporting structure or equipment.
High voltage electrical isolators are available in a range of shapes and sizes, and may be designed with specialized features to improve their performance and safety. These may include insulating barriers, arc chutes, and earth switches, among others.
 
 
 
Operation:

Outdoor Disconnector Switch switch separates the conductive part from the base using an insulator to ensure a normal working insulation distance and fix the conductive part, insulator, and base as an integral switching device. When it is in the open position, there is a visible gap and a proper breaking insulation distance to withstand the normal working voltage. When it is in the closed position, it can reliably carry the normal working current and short-circuit fault current. Due to the presence of a dedicated arc extinguishing device, it can only be used for switching circuits with voltage but no load. The opening and closing operations are carried out by using an insulating hook to pull or push the round hole in the interlock, causing the dynamic interlock hook to disengage and engage with the static interlock hook.
 
 
 
 
Structure:

 
This product is composed of base (plate), post insulator, conductive part and interlock device. One end of the knife is installed on the dynamic contact knife head through bolts, and the other end of the knife is separately connected with the static contact head, and each side is maintained in a good contact state by the pressure of the compression spring. Each knife is slot-shaped type, which not only increases the heat dissipation surface of the knife, but also conducive to reducing the temperature rise, and improve the mechanical strength of the knife, making the dynamic thermal stability against short circuit. The interlocking parts installed at the non-rotating end of the contact knife and the static locking hook on the static contact constitute the opening locking device, which is self-locking when the brake is closed, so that the brake knife will not fall off by itself due to its own weight or the action of electric power, resulting in the opening of the brake without cause.
 
 
 
 
Safety Risks:

 
1.Electrical shock: High voltage disconnect switches can deliver a potentially lethal electric shock if they are not handled properly. This can happen if the switch is not properly isolated before it is opened or if there is a fault in the equipment.
2.Arc flash: When high voltage disconnect switches are opened, an arc flash can occur, which can release a significant amount of energy in the form of heat, light, and pressure. This can cause burns, eye damage, and other injuries.
3.Equipment failure: High voltage disconnect switches can fail if they are not properly maintained or if they are overloaded. This can lead to equipment damage, electrical fires, and other hazards.
4.Environmental hazards: High voltage disconnect switches are often located in outdoor environments, where they can be exposed to extreme weather conditions, such as high winds, heavy rain, and lightning strikes. These conditions can create additional safety risks for personnel who are operating or maintaining the equipment.