DFW cable distribution box (with switch) 10KV
1.1 Product use
DFW1G-12 cable distribution box for 7.2-12kV three-phase AC 50Hz power distribution system, connecting cables, as the acceptance and distribution of electricity purposes. No conductive parts exposed, all conductive parts are high-strength epoxy resin or silicone rubber insulation for closed, safe and reliable, the appearance can be touched, there is no risk of electric shock.
Cable through the elbow plug into the line, through the SF6 switch, insulated bus closed, and then through the load switch, the energy distribution out. Cable distribution box into the line to meet the cross-section of 50 ~ 400mm2 the use of power cables, this product can provide a single cable into the outlet, two-cable access to a variety of installation methods, with more than 100 kinds of wiring options available to users. Busbar side can be installed surge arresters, installation and maintenance is simple, there is no fire hazard, especially for urban residential and high-rise buildings as the distribution of energy use. Is a new type of power distribution equipment suitable for cable power supply.
1.2 Features and use of the product
1.2.1 All energized parts of the incoming and outgoing wires are completely enclosed by high insulation strength gel epoxy or silicon rubber. The insulation layer can withstand all test voltages and can be touched to meet the requirements of long-term operation.
1.2.2 The incoming line can be a solid insulation circuit breaker or a SF6 load switch. When the line for the SF6 switch, SF6 switch spring operating mechanism by the manual operation, outlet solid insulation circuit breaker with a dedicated division of the operating handle. As long as the operating force of the operating handle is greater than 300N (about 30kg), the closing speed of the movable contact is guaranteed to be a certain value, no longer with the operating force, thus ensuring the reliability of closing.
1.2.3 There is a mandatory function to prevent misuse. When the switch is in the closing state, can not be grounded operation, when the switch is grounded, can not be closed operation.
1.2.4 According to user needs into the circuit can be installed in each circuit short-circuit indicator and charged display.
1.2.5 The size of cable distribution box is very small, 1/3 of the conventional equipment, the top layer of double-layer anti-condensation structure, the wall is made of stainless steel, never rust. Installation can be removed when the four walls, cable wiring is very convenient.
1.2.6 A wide range of products, each road are used SF6 switch, you can use as an outdoor switch cabinet, you can also increase the insulation of the metering circuit, installed in the box-type substation as a high-voltage distribution board.
1.2.7 Routine grounding operation and routine insulation test of outgoing cable shall be completed by special plug without dismantling. For the line to find fault is particularly convenient.
GB3804 "3-63kV AC high-voltage load switch"; GBl985 "AC high-voltage isolating switch"; SD318 "high-voltage switchgear atresia (high voltage switchgear) Equipment technical conditions "; DL / T539" high-voltage switchgear common technical guidelines for ordering "the relevant provisions.
2. Installation conditions
2.1 The altitude of the installation site shall not exceed 2000m.
Note: Consult the manufacturer for installation altitude above 2000m above sea level.
2.2 The ambient temperature is not higher than +40 ℃, within 24 hours an average of not more than +30 ℃. Ambient temperature not lower than -30 ℃.
2.3 The surrounding medium without explosion and flammable danger, not enough to damage the insulation and corrosion of metal gas or steam, no conductive dust.
2.4 installation site without severe vibration and bumps, the installation gradient of not more than 5 °.
Note: for those who do not meet the above conditions of use or special conditions of use of the user can be resolved in consultation with the manufacturer.
3. Product name, model, program
3.1 Product Name: DFW1G-12 630/400 \ T0.4-type outdoor cable distribution box.
3.2 The wiring scheme of this product is made up of Arabic numerals and Chinese phonetic alphabets.
Principle and Structure
5.1 Brief description
DFW2G-12 high-voltage cable distribution box is 12kV SF6 load switch or solid insulation circuit breakers, silicon rubber elbow cable outlet device, closed bus, arrester, protective partition and stainless steel shell. A, B, C three-phase respectively by the same independent unit combination, the load switch with the operating handle phase operation.
All the live parts of the cable distribution box, including the bus system, outlet device, static contact, moving contact, arcing contacts, etc., and switch and switch connections are firmly installed in the high-strength insulating gel epoxy resin Cast insulation or silicone rubber insulation inside, the outer insulation using labyrinthine insulation structure, so that live parts and live parts between the ground have reached the air insulation distance ≥ 125mm above, insulation climbing distance ≥ 230mm or more, resulting in The product is fully insulated. Personnel operation without electric shock hazard.