Dense flame-retardant bus duct connector

Dense flame-retardant bus duct connector

1Sheet metal fabrication:

aThe cutting, punching, and bending accuracy of the busbar must be ensured, especially the bending accuracy. Changes in the bending angle can cause uneven lengths of the conductor ends

bAll burrs on the cover plate and side plate should be cleaned thoroughly. When bending the side plate of the steel shell horizontally, the outer plate needs to be formed by a bending machine to reduce the bending radius;The inner panel is manually bent, increasing the bending radius in order to****Avoid sharp edges and corners between the conductor and the side plate to protect the insulation layer from damage;

cThe punching and positioning of the bent side panel should be strictly carried out according to the air type standard, otherwise the busbar at the corner will loosen, resulting in a decrease in heat dissipation effect and operational noise

1.Bimetallic pin structure, silver plated surface to ensure long-lasting contact pressure and low contact resistance

2.Equipped with a safety interlock mechanism, the plug-in box cannot be closed when it is not installed in place****Avoid plugging and unplugging the plug-in box under load.

Bus ducts have good applications in some high-rise buildings and large factories, mainly used in power supply systems to simplify power system wiring. However, during the operation of the bus duct, it will be cold and hot at times. The insulation layer will remove moisture when it is hot, and absorb moisture when it is cold. This will cause a decrease in insulation quality, and the joints will also loosen and oxidize. Therefore, wholesale bus ducts and bus ducts should be maintained and inspected regularly.

When the voltage disappears due to a fault in the bus duct and there are obvious short circuit symbols (such as fire, explosion)iThe operation team personnel shall not resume operation on their own and shall conduct a detailed inspection of the busbar equipment in case of explosions, smoke, etc.

If the components connected to the busbar fail or the bypass switch refuses to operate, causing the busbar to lose voltage, a detailed inspection should be carried out. Immediately isolate the faulty components in the busbar slot or open the knife switches on both sides of the faulty bypass switch, quickly restore the operation of the busbar, and send out other branches.

The variable capacity section is designed to achieve variable capacity of a single busbar.

The plug-in box is used to connect cables externally and supply power to other electrical equipment using the cables. The plug-in box is equipped with a switch circuit breaker.

Various bends are used to change the direction of the bus duct inside the building.

The terminal box is used to protect the end of the busbar trunking system.

Accessories include brackets, hangers, etc., used to fix and support horizontal and vertical bus ducts.

In terms of equipment, the busbar is composed of many sections, each of which is short and light in length. Therefore, only a few people are needed to activate the device. The busbar has many standardized parts and inventory, which can be shipped quickly and save on-site operation time. Its tight“sandwich”The plan can reduce electrical space, bus duct connectors, and then free up more space for commercial use, such as renting or using it as a public place. For equipment cables, it is a difficult task. Due to the heavy weight of a single cable, equipment operation requires the collaboration of many people and takes a lot of time to complete. In addition, due to the twisting radius of the cable, more equipment space is required.

The busbar wrapped with fire-resistant mica tape and the bracket made of fire-resistant insulation material. There are multiple grooves on the bracket, in which busbars are embedded and fixed. There is a bus duct connection box at one end of the bus duct, and a bus tap box inside the bus duct. Fire resistant busbar trunking has excellent insulation performance, which can be used continuously in normal environments or for more than one hour in fire environments. It can be used in high-rise buildings and important facilities to replace fire-resistant cables for power transmission and distribution.

Dense flame-retardant bus duct connector

During maintenance and inspection of bus ducts, the following items are usually checked: grounding conductors are very important as the life safety line of the system,DWPThe product design of the series can provide maximum protection for high-capacity power grid distribution, provide reliable grounding paths for ground faults, and provide short paths for ground wire short circuits.

2 High short-circuit withstand strength and good dynamic thermal stability

Bus duct adopts“sandwich”The basic structure has undergone multiple practical optimization designs, significantly improving the reliability of the product's use. insulating material*The heat resistance, insulation strength, and current carrying conductor of****The non-magnetic nature of the aluminum alloy shell enables the entire system to withstand higher short-circuit peak currents and has stable dynamic and thermal stability performance.

3.All live parts of the plug-in box have been tested****When installing the electrical isolation and plug-in box, the ground wire should be connected to the busbar system before the phase wire. When disassembling the plug-in box, the ground wire should be disconnected afterwards.

Corrosion resistance: The bus duct with a metal casing cannot resist acid rain corrosion, and corrosive gases and even corrosive liquids generated by chemical plants can splash onto electrical products. This requires the busbar to have anti-corrosion performance. The epoxy resin castable used for casting bus ducts has excellent anti-corrosion properties and can****Resist the erosion of various chemicals.

The electricity consumption in various industries is rapidly increasing, especially with the emergence of numerous high-rise buildings and large factory workshops. Traditional cables, as transmission lines, can no longer meet the requirements in high current transmission systems. The parallel use of multiple cables has brought many inconveniences to on-site installation and construction connections.

1The entire mainline system consists of multiple bus duct units(According to the corresponding factory number)Assembled by plug-in connection: After the installation of every two sections of busbar trunking, the gap between the ends of the two cover plates is200mm.

2After inserting the two ends of the enclosed bus duct into each other, insert the insulation bolt, insert the bowl shaped gasket, tighten the bolt with a torque wrench, and then install the joint cover plate and tighten the joint bolt. Maintenance requirements after fastening0.01mmIt is advisable to check with a feeler gauge if it cannot be inserted.

3Insert the enclosed busbar slot into the corresponding factory numbered starting and ending boxes, and fix them on the upper surface with a dust plate.

4Before powering on, it is necessary to conduct phase and connectivity tests on the bus duct system. Check the grounding resistance and insulation resistance, insulation must be used1000Vor500VMeasure the cold insulation resistance of the megohmmeter, with each section not less than20MΩ.

5When the indoor power supply bus duct and plug-in bus duct are horizontally oriented, the current can be adjusted according to the size of each1.8m—2.5mPlace a support, busbar slot connector profile, each4.88mWhen running vertically, placing a spring support can release the tension. Outdoor bus duct1.5mPlace a support, both horizontal and vertical are the same. Due to the increasing demand for electricity in various buildings such as buildings and factories, using the original circuit wiring method, namely the conduit method, brings many difficulties during construction. Moreover, when changing the distribution system, it is almost impossible to make it simpler. However, if bus ducts are used, it is very easy to achieve the goal, and it can also make the building more beautiful.