High pressure operation electrician dress with copper wire, the following statement is correct
This dress is called "Faraday cage", is a way to guarantee a safe measure in the cage when Faraday personally test. When in use, you also need to ensure that the "cage" of insulation. Is said to live working people on the insulation of the platform, the "cage" connected with the wire, and then you can free charged homework. At this time, the body and the wire potential are identical, no current flows through the human body.
Effect of shielding clothes are wearing after use, so that in the high voltage electric field in the outer surface of the body parts to form an equipotential surface shield, which protect the body from the high-voltage field and the electromagnetic wave potential harm. That potential are equal and not equal to 0, and other potential potential difference is 0, the electric field intensity of 0So C right, ABD errorSo choose C.
In high voltage electric field in the human body, there will be dangerous current flows, endanger the personal safety, thus all entered the high electric field staff should wear a full shield clothing. Live working is also called equipotential shielding clothes all over, is made of conductive material and fiber material uniform clothing. Its role is to wear after that, in the high voltage electric field in the outer surface of the body parts to form an equipotential surface shield, which protect the body from the high-voltage field and the electromagnetic wave shielding hazards. Complete should include a jacket and trousers, hats, socks, gloves, shoes and connecting lines and the corresponding connecting head.
