1. Outline FZW32-12 type outdoor high voltage disconnecting vacuum break load switch is a new type of load switch which is the integration of mature experience of domestic existing load switch and advanced technology design of external. This load break switch is composed of disconnector, vacuum interrupter and operating mechanism and other parts. By using the principle of vacuum interrupter, with strong arcing ability, reliable performance, long service life, small volume, no explosion danger, no pollution etc advantage. The product can be used in transmission and distribution system of electric power, metallurgy, mine, chemical industry and other departments as control equipment, especially suitable for frequent operation place. 2. Instruction 1.Use vacuum interrupter, without explosion hazard and no need maintenance. 2.Disconnector and three-phase vacuum interrupter are ganged, when opening, there is obvious disconnecting fracture. 3.All components use stainless steel material, the chassis uses stainless steel material or  hot galvanizing coated with anti UV protection paint carbon steel, ensures product’s normal operation in outdoor environment. 4.Installation way mainly are single pole mounting and manual operation, also use motorized or remote control operation. 5.Widely used in rural and urban distribution network, railway and other distribution electricity circuit retrofit. 6.Great breaking capacity, safe, reliable, long electrical life, and can be  operated frequently. 3. Type Description 4. Environmental Conditions a. Altitude ≤1000m; b. Ambient air temperature -30~+40℃; c. Relative humidity: daily average ≤95%, monthly average ≤90%; d. Without frequent violent vibration. 5. Technical Parameters NO. Name Unit Value 1 Rated voltage KV 12 2 Rated frequency Hz 50 3 Rated current A 630 4 Rated active load breaking current A 630 5 Rated closed loop breaking current A 630 6 5%rated active load breaking current A 31. 5 7 Rated cable charging breaking current A 10 8 Rated breaking capacity of no-load transformer KVA 1600 9 Rated breaking capacitor bank current A 100  10 1min power frequency withstand voltage: vacuum fracture/phase-to-phase, phase-to earth, disconnectingfracture  KV  42/48  11 Lightning impulse withstand voltage: phase-to phase,phase-to-earth/disconnecting fracture  KV  75/85 12 Rated short time withstand current(thermal stability) KA 20 13 Rated short-circuit duration S 4 14 Rated peak withstand current(dynamic stability) KA 50 15 Rated short-circuit closing current KA 50 16 Mechanical life Times 10000 17 Vacuum interrupter contact erosion limit mm 0.5 18 Manual operating torque Nm ≤200            19        Load break switch vacuum interrupter assembling adjustment Clearance between opencontacts  mm  5±1 Average opening speed m/s 1.1±0.2 Three-phase openingasynchronism  ms  <5 Three-phase closingasynchronism  ms  <2 Distance between chargedbodies and phase-to-earth  mm  >200 Auxiliary circuit resistance μΩ ≥400 6. Installation Ways, Transverse Width and Phase-to-phase Distance  Installation way  Transverse width AB phase-to-phasedistance BC phase-to-phasedistance Single pole horizontal installation 1300mm 750mm 320mm Singe pole vertical installation 1230mm 500mm 500mm Singe pole vertical installation 1050mm 400mm 400mm 7. Basic Structure Drawing The load break switch with three-phase linkage, is mainly consist of frame, vacuum interrupter components, disconnector components and spring mechanism, disconnector and vacuum interrupter are fixed on frame via insulator, spring is fixed on frame. 1.Vacuum interrupter 2. Disconnector components 3. Insulating rod 4. Insulator 5. Spring 6. Frame 7. Earthing components Installation Ways and Mounting Bracket Schematic Diagram Installation ways of load break switch include pole top installation, horizontal installation and single pole vertical installation. 9.1. Single pole vertical installation (see figure) 1.Terminal 2.Hoop 3.Mounting bracket(long bracket, short bracket) 4.Load break switch 5.Pole 6.Power supply outgoing 7.Power supply incoming 9.2. Horizontal installation (see figure) 1.Switch bracket components 2.Connecting cooper bar 3.Load break switch 4.Operating lever 5.CT 6.Insulator 7.Fork type lock 8.Strain clamp 9.3. Pole top installation (see figure) 1.Connecting wire 2.Load break switch 3.Connecting cooper bar 4.Insulator 5.Fork type lock 6.Strain clamp 7.Switch bracket 8.Operating lever