1, medical electrical equipment should be in line with both the electrical safety part and the electromagnetic compatibility part of the requirements of the definition of electromagnetic compatibility: electromagnetic compatibility (EMC) is a general term for radiated interference and conducted interference of equipment. Electromagnetic compatibility refers to the equipment or system in its electromagnetic environment to comply with the requirements of the operation and does not produce intolerable electromagnetic interference to any equipment in its environment the ability. Electromagnetic compatibility includes two aspects: electromagnetic interference (EMI) requirements and electromagnetic immunity (EMS) requirements. EMI testing includes conducted and radiated nuisance, harmonic distortion, and voltage fluctuations and flicker. Immunity testing, on the other hand, is carried out according to the port classification of different test levels. The basic concepts of electromagnetic compatibility are given, and through the elaboration of the basic concepts, readers can have a preliminary understanding of the connotation of the electromagnetic compatibility problem. Measurement of electromagnetic compatibility is an important branch of the study of the electromagnetic compatibility problem, and measurement of electromagnetic nuisance emitted from the transmitting source and electromagnetic nuisance received by the analog sensitive equipment.
2, electrical safety: in addition to low leakage equipment to ground voltage. Reduce the risk of electric shock when the zero line is broken. Shorten the duration of touching shell or grounded short circuit, improve the lightning protection performance of overhead lines, etc..