Products 1, the scope of products: 1.1 GN19ST-12 series indoor high voltage isolation switch (hereinafter referred to as isolation switch) for the rated voltage 12 kV, three-phase AC 50Hz indoor installations. Use of environmental conditions are as follows: a. Altitude does not exceed 1000m; b. Ambient temperature is not higher than +40 ℃, not lower than -30 ℃; c. Relative humidity less than 90% (+25 ℃) when; 1.2 isolation switch does not apply; a. installation site should not seriously affect the isolation switch insulation and conductivity of gases, vapors, chemical deposition, salt spray, dust, dirt and other explosive, corrosive substances. b. installation site should not frequent severe vibration. 2, Technical parameters: isolation switch main parameters are listed in Table 1 Table 1 Switch Type Rated voltage (KV) Rated current (A) dynamic stability current KA (peak) 4 seconds thermal stability current KA (rms) GN19-12ST/400 GN19 -12CST/400 12 400 31.5 12.5 GN19-12ST/630 GN19-12CST/630 630 50 Product Attributes 20 GN19-12ST/1000 GN19-12CST/1000 1000 80 31.5 GN19-12ST/1250 GN19-12CST/1250 1250 100 40 3 , the main structure: GN19-12ST/400, 630,1000,1250 isolating switch through each phase of the three pillars of the conductive portion of the insulator fixed on the bottom shelf, GN19-10CST/400, 630,1000,1250-phase parallel installation , the conductor contacts the contact blade and static components, the middle of each phase are connected with contact blade rod insulators, insulator rod mounted on the base frame and is connected to a spindle, the spindle and connecting rod and crank arm by CS6-1 (T) type actuator connected to the actuator and interlock lever (user supplied) connected to the auxiliary switches linked together. Mainly composed of conductive and static contact contact blade composed of static contact mounted on both ends of the insulators, each touching blade composed of images from the two geometries, which not only increases the contact blade cooling area, to reduce heating favorable but also improves the mechanical strength of contact blade, the dynamic stability is improved so that the switch, contact blade at one end by a shaft pin (bolt) mounted on the stationary contact, the contact of the other end of the contact blade system can be divided into static contact with the connection and contact blade contact pressure by a spring to maintain contact with both ends. GN19-12ST/1000, 1250 and GN19-12CST/1000, 1250 in contact with a magnetic lock mounting plate, add a magnetic lock plate is intended; strengthened when the short circuit current is passed between the two slotted blade contacts the attraction. Also increased at the contact pressure of the contact, thus increasing the thermal stability of the dynamic switch contacts. GN19-12ST/400, 630 mounted isolation switch current limit through small blade close proximity, so the structure of non-magnetic lock plate. GN19-12ST/630, 1250 and GN19-12CST/630, 1250 in order to accommodate dual cable and dual outlet designed paperback style and wall switch disconnectors, for safety reasons, equipped with an interlock between two contact blade devices, interlock device into an interactive and single-acting. Chassis assembly: the chassis spindle limit plate (stop file) composed mainly used to guarantee the stopper plate conductive contact blade "points", "together" when you get the desired end position. Other notes 0577-62779305 Description of transaction integrity management Kuandaofahuo