Our company specializes in the production of all kinds of wall bushings: copper indoor wall bushing CB-10 400A CB-10 600A CB-12 1000A CB-10 1500A copper outdoor wall sleeve CWB-12 400A CWB-10 630A CWB-10 1000A CWB-10 2000A CWB-12 3150 CWW-10 1250A CWW-10 630A CWW-10 1000A CWW-10 1600A cww-10 2000a cww-10 3150a cww-10 4000a cww-35 400a cww-35 630a cww-35 1000a cww-35 1600a cww-35 2000a cww-35 2500a cww-35 630a cww-35 1000a cww-35 1600a-3 cww-35 2000a-3 cww-20 2000a cww-20 3150a cwc-20 2000a cwlb-10 3150a cwc-20 1600a cwc-40.5/1250a cwc-40.5/1600a cwc-40.5/2500a cwc-40.5/3150a
1. CWC-405 1250A Outdoor Ceramic Bull CWW-35 1600A2500A Copper Row Bull Bushing Overview.
cwc-40.5 1250A Outdoor Ceramic Bull Through Wall Casing CWW-35 1600A2500A Copper Row Bull Through Wall CasingIt is suitable for three-phase AC system power stations and substation distribution devices with rated voltage of 10kv-35kv and frequency of 15-60Hz, and is used for the conductive part to pass through the partition, wall or other grounding objects to provide insulation support and fixed connection between external wires (busbars).
2. CWC-405 1250A Outdoor Ceramic Wall Bushing CWW-35 1600A2500A Copper Row Wall Sleeve Use and Classification.
cwc-40.5 1250A Outdoor Ceramic Bull Through Wall Casing CWW-35 1600A2500A Copper Row Bull Through Wall CasingIt is used in power stations and substations for power distribution devices and high-voltage electrical appliances, so that the conductor passes through the grounding partition, wall or electrical equipment shell, and supports the conductive part to insulate it to the ground or shell.
According to its use environment, the wall porcelain casing can be divided into indoor and outdoor wall porcelain casing. According to the different conductors passing through its center, it can be divided into bus through-wall porcelain casing, copper conductor through-wall porcelain casing and aluminum conductor through-wall porcelain casing.
When the copper conductor is directly connected with the busbar, it is easy to produce galvanic corrosion, and the temperature rise of the contact surface is too high, which causes the joint to burn out, affecting the life of the equipment, so the copper-aluminum transition joint should be used, but it brings trouble to the on-site construction, and the aluminum conductor porcelain sleeve can solve the above problems.
Indoor and outdoor wall porcelain casing is assembled from porcelain, conductive rod, metal accessories at both ends and mounting flanges. The porcelain sleeve of the bus through the wall is assembled by porcelain, metal accessories at both ends, bus splint and mounting flange (the bus splint is usually self-matched by the user according to the bus size).
cwc-40.5 1250A Outdoor Ceramic Bull Through Wall Casing CWW-35 1600A2500A Copper Row Bull Through Wall CasingThe performance is in line with GB129441. The provisions of the "Technical Conditions for High-pressure Penetrating Wall Porcelain Casing".
3. CWC-405 1250A Outdoor Ceramic Bull Wall Casing CWW-35 1600A2500A Copper Row Bull Wall Casing Installation and Use Instructions.
1.The wall porcelain sleeve is suitable for power frequency AC rated power 40Power stations and substations with an ambient temperature of -40 +40 and an altitude of no more than 1000m below 5kv.
2.Indoor wall casing is not suitable for places where the enamel, metal accessories and cement adhesive of the casing are destructive or sufficient to reduce the electrical performance of the casing.
3.If the partial discharge phenomenon occurs in the operation of the porcelain casing through the wall, the flange or inner cavity of the porcelain casing should be checked for the local falling off of the aluminum layer, and temporary pressure equalization measures should be taken in time if so.
4.The wall hole of the porcelain casing for the bus through the wall should be opened according to the size of the flange stiffener.