Category 1, the low-voltage switch cabinet 2, 3 AC low voltage distribution cabinet, metal armored away switch cabinet 4 low voltage switchgear fixed-separated 5, high-voltage capacitor cabinet 6, the operation of high voltage switchgear low voltage switch cabinet security technology Practice 1 on all or part of the disc live work, equipment maintenance and operation of equipment should be separated in order to clearly marked. 2, there should be a permanent secondary winding current and voltage transformers, reliable protective earth. 3, the work in running the current transformer secondary loop, Puyang City, low voltage, take the following safety measures: 3.1 non-current loop is disconnected. High Voltage Switchgear 3.2 In order to reliably short circuit current transformer secondary winding, Ningling low voltage switch, you must use the shorting bar and short routes, prohibit the use of wire is wound. 3.3 prohibit any work on the current transformer circuit and short circuit between the terminals and wires. 4, the operation of the voltage transformer secondary loop work, should take the following safety measures: 4.1 strictly prevent a short circuit or grounding. 4.2 Use insulated tools, wear insulated gloves, if necessary, before the work to stop using protection devices. 4.3 take temporary load, it must be equipped with dedicated switches and fuses. 4.4 secondary circuit when the current test from the secondary side to prevent an anti-PSA, in addition to the secondary circuit breaks, it should also be removed once the fuse. 4.5 secondary circuit is powered on or before the pressure test, shall notify the attendant and associated personnel, and sent to guard the site, check circuit, Yanjin County, low voltage, only after confirming no work pressure. 4.6 inspection staff and the secondary circuit of power protection, low voltage, without the permission duty, are not allowed to perform any switching operation. KYN28A-12 flat-topped cabinet details of the cabinet is made of imported aluminum coated zinc plate steel double folded assembled, is divided into four separate compartments. Meter room and roof design are integrated, the cabinet as a whole simple, reliable, and easy to install. After two doors up and down the cabinet design, user maintenance more convenient. Second go trough optimized design, effectively have to improve the level of protection for the second line. grounding switch central installation, CT lifting, increased cable room space, making maintenance simple, easy cable installation can be equipped with VS1, VD4 (ABB), EV12 (Schneider), ZN28 (GM), VB2 (GM), 3AH5 (Siemens) series circuit breaker protection class: housing is IP4X, compartment between the IP2X. Shangqiu low voltage, low voltage, provided by the Henan Xi Xi Connaught Electrical and Mechanical and Electrical Equipment Co. Connaught. Henan Xi Connaught Electrical Equipment Co. (www.hnxinuo.com) strong, credible, in Zhengzhou, Henan electronics, electrical products processing industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Connaught Electrical and Mechanical study into the brilliant and you work for a better future!