Hazards Of Operating High-voltage Disconnect Switches Under Load

1. In addition to posing a serious threat to safe power supply, the serious arc caused by misoperation may endanger the personal safety of operators, and in severe cases may even cause high voltage isolator, causing greater harm to people.
2. In the indoor distribution equipment, the indirect harm of pulling high voltage isolator switch with load is sometimes quite serious. For example, when an arc short circuit occurs in some indoor distribution devices, if the circuit breaker trips, oil spray will occur, causing serious consequences.
3. For indoor distribution devices, due to the role of grounding components in the live interval, short-circuit discharge to people is generally not directly caused. However, if the doors and windows of the live interval are mesh doors and windows, the operator may also suffer from arc burns.
4. For outdoor distribution devices, the operator stands directly under hv isolator to operate, and there is no baffle protection between hv isolator switch and the person. When the operator pulls high voltage electrical isolator, the arc isolator high voltage is elongated and short-circuited to the ground, and the operator will suffer arc burns. In severe cases, short-circuit discharge may be directly caused to the person.