Anti-static wrist strap (with rope)
In the house, static electricity may be generated after the carpet and the sole are rubbed, and the body may be charged due to wind blowing outside the house. At this time, be careful when going in and out of the iron gate, your hand may hit the electric. After repeatedly encountering such a situation, you can take the following measures to avoid electric shock:
When touching the iron door, do not directly touch the iron door directly with your hand. Instead, use your hand to grasp a large number of keys in your pocket (usually this will not be shocked). Then, use the tip of a key to touch the iron door. In this way, the body's electricity will be released, and will not be shocked.
Principle: The pain of discharge on the hand is due to the high-voltage discharge, which is a very small area due to the sudden contact of the hand with the iron door during discharge, thus generating an instantaneous high pressure. If you take out the key in your pocket, first hold the key in a large area (a bunch of keys can't pass away any charge and there is no electric shock at this time), then use the tip of a key to touch the large conductor. The point of contact for the discharge is not a point on the skin of the hand, but the tip of the key, so the hand does not feel pain (maybe the key will!----if it has a pain).