Safety in the EPA area
There are generally powered tools and equipment within the EPA. In this environment, it is dangerous to directly connect a single object or device to the ground. It is for this reason that a resistance of not less than 1M should be connected in series at the connection point of the ground wire of the wrist sleeve, the runner and the toe band. Some wrist grounding conductors have such a resistor at each end, so even if the wrist grounding conductor is connected to the live terminal of the product being powered on, there is no danger.
The wrist grounding wire tester is an instrument that detects whether the resistance of the resistance is appropriate (if it is too high, it is impossible to achieve equipotential bonding; if it is too low, there will be a safety hazard).
The ground wire of the wrist sleeve should be equipped with a plug that is quickly compatible with other electrical sockets, so as to ensure that it will not be mistakenly plugged into other electrical sockets, and it can be easily unplugged in an emergency.