What is electromechanical equipment?

　　I. Electromechanical equipment generally refers to mechanical, electrical, and electrical automation equipment. In construction, it generally refers to all mechanical and pipeline equipment except for geotechnical, woodworking, steel reinforcement, and masonry work.

　　II. Electromechanical equipment includes:

　　Lightning protection devices: lightning rods, down conductors, grounding devices, surge protectors, and other connecting conductors.

　　Lightning induction: During a lightning discharge, electrostatic and electromagnetic induction is generated on nearby conductors, which may cause electrical sparks between metal components.

　　Electromagnetic compatibility: The ability of equipment or systems to function normally in an electromagnetic environment and not cause intolerable electromagnetic interference to anything in the environment.

　　Protective grounding: Connecting the normally unenergized exposed conductive parts of electrical equipment to a protective conductor (PE wire) or protective neutral conductor (PEN wire) according to the system's grounding type is called protective grounding.

　　Surge protector: A device with nonlinear characteristics used to limit transient overvoltages and surge currents conducted in lines, and also with nonlinear characteristics.