CWB-10KV/1000-1500A outdoor copper conductor wall bushing

1. CM CMW, the CME, the CMD bus type 2. rated voltage (10 ~ 35) kV 3. frequency (15 ~ 60) Hz 4. three-phase AC

An overview

the - CM, CMW, the CME, the CMD busbar type wall bushing

High-voltage wall bushings: hereinafter referred to as the casing) to the rated voltage (10 ~ 35) kV, frequency (15 ~ 60) Hz three-phase AC system power station and substation power distribution unit, for the conductive part through the septum panels, walls or other grounded objects, since the insulation fixed connection between the support and the external conductor (busbar).Environmental conditions1) households within the casingThe ambient temperature is not higher than +40 °C, not lower than -40 °CAn altitude of not more than l000mRelative humidity on average less than 90%Ambient air should not corrosive or flammable gas, water, steam, and so obviously dirtyRecurrent severe vibration2) Outdoor casingThe ambient temperature is not higher than +40 °C, not lower than -40 °C;Elevation exceed l000m;Wind speed is not greater than 34m / sEnvironmental air contamination condition of use of the product, according to GB/T5582 divided into I, II, III, IV, 4;Recurrent severe vibrationSecond, product characteristics

Casing by the porcelain, metal accessories, the composition of the mounting flange and the conductive row (pole).

5, the installation instructions for use1 ceramic wall bushings for power frequency AC rated 40.5kv following the installation site ambient temperature of -40 ° C ~ +40 ° C, the altitude does not exceed 1000m of the power station and substation power distribution unit.

2 indoor wall bushing is not used for the casing of the enamel, metal accessories and cement glue has damaging effects or sufficient to reduce the place of the casing of electrical performance.

3.Ceramic wall bushings in the operation, such as partial discharge phenomenon, you should check the porcelain casing flange or cavity whether sprayed aluminum layer local shedding phenomenon, if any should be taken to the temporary equalizing measures.

4 Install a bus hole in a wall of ceramic wall bushings should be Falan Jia strong gluten maximum size openings.Third, the use and classification

Ceramic wall bushings for the power station and substation distribution equipment and high-voltage electrical appliances, for the wires through the ground partitions, walls, or electrical equipment enclosure to support the conductive part to make it right or housing insulation.

Ceramic wall bushings according to their use of the environment can be divided into indoor and outdoor ceramic wall bushings. Through the center of the conductor can be divided into the bus ceramic wall bushings, copper conductor, ceramic wall bushings and aluminum conductors, ceramic wall bushings.

When the copper conductor and the bus is directly connected, easy to produce galvanic corrosion, the contact surface temperature is too high cause the joints to burn, affecting the life of the equipment, it should be using copper and aluminum transition joints, but to cause trouble to the on-site construction, the use of aluminum conductors porcelain The casing can solve these problems.

Indoor and outdoor ceramic wall bushings porcelain pieces, conductive rod, both ends of metal accessories and mounting flange assembled. Bus ceramic wall bushings is made by the porcelain pieces, both ends of the metal accessories, bus plywood and mounting flange assembly (bus plywood usually with bus size by the user).The performance of ceramic wall bushings in line with the provisions of the GB12944.1 voltage ceramic wall casing technical conditions.

Model	Drawing No.	Rated voltage kv	Rated current A	5 seconds short time current kA	Outdoor side Nominal creepage distance (mm)	Power frequency voltage KV r.m.s not less than			The full-wave impulse withstand voltage kv peak is not less than	Bending failure load EN is not less than	Weight (kg)
						Dry tolerance	Wet withstand	Breakdown
CWB-10/200	2	10	200	3.8	230	47	30	75	80	4	6.2
CWB-10/400	2	10	400	7.2	230	47	30	75	80	4	6.3
CWB-10/630	2	10	630	12	230	47	30	75	80	4	6.5
CWB-10/1000	3a	10	1000	20	230	47	30	75	80	4	9.5
CWB-10/1500	3b	10	1500	30	230	47	30	75	80	4	9.5

 

CWB-10KV/1000-1500A outdoor copper conductor wall bushing