BS EN 61000-5-7:2001 電磁兼容性(EMC).安裝和調試指南.外殼抗電磁干擾防護等級(EM規則)
Electromagnetic compatibility (EMC) - Installation and mitigation guidelines - Installation and mitigation guidelines - Degrees of protection by enclosures against electromagnetic disturbances (EM code) - Degrees of protection against electromagnetic dist