| 详细介绍：
35Kv Indoor-Outdoor Antifouling Type wall bushing
35kV户内户外耐污型高压穿墙套管
CWW-40.5/1250-4高压防污型铜导体穿墙套管，高原型。
外形及安装尺寸图Appearance and installation dimensions
CWW-40.5/1250-4 Copper Conductor Wall Bushing
电站用穿墙套管适用于35kV及以下电压等级的电站、变电所配电装置及电器设备中，供导线（母线）穿过接地隔板，墙壁及封闭配电机构中作为绝缘支持和外部导线（母线）连接用。
High pressure wall bushing of power station is suitable for up to and including 35 kv voltage grade of power plant, substation, power distribution equipment and electrical equipment, For lead (bus) through the ground plate, Walls and closed distribution agencies as support and external insulation wire (bus) in connection with.
二、产品分类Product categories
电站用高压穿墙套管分为户内和户外两大类，有铜导体、铝导体及不带导体的母线式穿墙套管三种结构，并有普通型和耐污型两大类产品。
Wall bushing divided into two big series: indoor and outdoor，Three kinds of structure with copper conductor and aluminum conductor and busbar wall bushing without a conductor，And have a regular and fouling resistance type two categories of products.
由于产品较多，为便于用户查询，将产品分别分类介绍。其中又将耐污型系列分为爬电比距2.0cm/kV以下和2.5cm/kV以上两类。特别推荐爬电比距2.5cm/kV和3.1cm/kV产品，不仅户外端耐污性能高，而且尽可能地加大了户内端的爬电比距，以防止因凝露等原因造成闪络。
Because the product is more, for ease of user queries, the product classification is introduced respectively. Fouling resistance type series can be divided into two types of Creepage distance ≤2.0cm/kV and ≥2.5cm/kV. Particularly recommended creepage distance 2.5 cm/kV and 3.1 cm/kV products. Not only outdoor side fouling resistance is high, but also increased than indoor the creepage distance as far as possible, in order to prevent the flashover caused by condensation, etc.
三、产品制造依据Product manufacturing basis
高压穿墙套管性能符合GB12944.1-91《高压穿墙套管技术条件》、GB12944.2《高压穿墙套管尺寸与特性》的规定。
High pressure wall bushing Performance conforms to GB12944.1-91 High pressure wall bushing technology conditions and GB12944.2 High pressure wall bushing size and characteristics.
四、使用环境
1）户内套管Indoor bushing
a)环境温度不高于+40℃，不低于-40℃；
The environment temperature is ≤ + 40 ℃, ≥- 40 ℃
b)海拔不超过1000m;
The altitude does not exceed 1000 m;
c)相对湿度月平均不大于90%；
The average ≤ 90% relative humidity;
d)周围空气应不受腐蚀性和可燃气体、水蒸汽等明显污秽；
Ambient air should not be obvious, such as corrosive and flammable gas, water vapor and filth.
e)无经常性的剧烈振动。
No recurrent severe vibration.
2）户外套管Outdoor bushing
a)环境温度不高于+40℃，不低于-40℃；
The environment temperature is ≤ + 40 ℃, ≥- 40 ℃
b)海拔不超过1000m;
The altitude does not exceed 1000 m;
c)风速不大于34m/s；
Wind speed is not more than 34 m/s;
d)产品的使用环境的空气污秽程度，按GB5582分为0、Ⅰ、Ⅱ、Ⅲ、Ⅳ等五级；
Products using the environment air polluted degree, accord to GB5582 into 0, Ⅰ, Ⅱ, Ⅲ, Ⅳ;
e)无经常性的剧烈振动。
No recurrent severe vibration.
五、型号说明 Model specification
C——户内铜导体穿墙套管Indoor copper conductor wall bushing；
CW——户外-户内铜导体穿墙套管Indoor-outdoor copper conductor wall bushing；
CB——户内圆导杆穿墙瓷套管Indoor circular guide wall porcelain bushing；B—抗弯破坏负荷等级Bending failure load level，8kN（加强型enhanced）。
CWB——户外-户内圆导杆穿墙瓷套管Indoor-outdoor circular guide wall porcelain bushing；
CWC——户外-户内穿墙瓷套管Indoor-outdoor wall porcelain bushing；C—抗弯破坏负荷等级Bending failure load level，12kN（加强型enhanced）。
CL——户内铝导体穿墙套管Indoor aluminum conductor wall bushing；
CWL——户外-户内铝导体穿墙套管Indoor-outdoor aluminum conductor wall bushing；
CLB——户内铝导体穿墙套管Indoor aluminum conductor wall bushing（加强型enhanced）；
CWLB——户内-户外铝导体穿墙套管（加强型enhanced）Indoor-outdoor aluminum conductor wall bushing
CWW——户外-户内耐污型铜导体穿墙套管Indoor-outdoor antifouling type copper conductor wall bushing；
CWWL——户外-户内耐污型铝导体穿墙套管Indoor-outdoor antifouling type aluminum conductor wall bushing；
CWWLB——户外-户内耐污型铝导体穿墙套管（加强型enhanced）Indoor-outdoor antifouling type aluminum conductor wall bushing；
CM——户内母线穿墙套管Indoor busbar wall bushing；
CMW——户内-户外母线穿墙套管Indoor-outdoor busbar wall bushing；
CMWW——户外-户内耐污型母线穿墙套管Indoor-outdoor antifouling busbar wall bushing；
字母后数字为设计顺序号After the letter digital serial number for a design。
例type example： CWWL-35/630-3
系35kV电压、630A电流、户外-户内耐污型铝导体穿墙套管，适用于3级污区。
System of 35 kV voltage, the current 630A, indoor and outdoor fouling resistance type aluminum conductor wear casing wall, suitable for level 3 polluted.
例type example： CWWL-35/630-1-G
系35kV电压、630A电流、户外-户内高原耐污型铝导体穿墙套管，适用于1级污区。
35 kV voltage system, current 630A , indoor-outdoor plateau fouling resistance type aluminum conductor wall bushing, suitable for level 1 polluted area.
例type example： CWWB-35Q/630
系35kV电压、630A电流、大爬距铜导体穿墙套管。
System of 35 kV voltage, the current 630 A, the high creepage distance copper conductor wall bushing.
六、穿墙套管技术参数Wall Bushing Technical parameters
|
No.
|
Device name
|
35kV AC HV Aluminum Conductor Wall Bushing
|
35kV AC HV Copper Conductor
Wall Bushing
|
|
1
|
Type
|
CWWLB-40.5/
630A-4
|
CWWLB-40.5/
1250A-4
|
CWW-40.5/
1250A-4
|
CWW-40.5/
2000A-4
|
CWW-40.5/
3150A-4
|
|
2
|
The rated voltage（kV）
|
35
|
35
|
35
|
35
|
35
|
|
3
|
Highest voltage for equipment Um（kV）
|
40.5
|
40.5
|
40.5
|
40.5
|
40.5
|
|
4
|
Rated current（A）
|
630
|
1250
|
1250
|
2000
|
3150
|
|
5
|
Rated frequency（Hz）
|
50
|
50
|
50
|
50
|
50
|
|
6
|
Thermal stability of current (Valid values)/time of duration
|
40kA/3s
|
40kA/3s
|
40kA/3s
|
40kA/3s
|
40kA/3s
|
|
7
|
Full wave impulse voltage（peak）（kV）
|
200
|
200
|
200
|
200
|
200
|
|
8
|
1min dry power frequency withstand voltage(Valid values)（kV）
|
95
|
95
|
95
|
95
|
95
|
|
9
|
1min wet power frequency withstand voltage (Valid values)（kV）
|
80
|
80
|
80
|
80
|
80
|
|
10
|
average diameter(Wall hole)(mm)
|
220
|
220
|
220
|
260
|
260
|
|
11
|
working life(year)
|
≥30
|
≥30
|
≥30
|
≥30
|
≥30
|
|
12
|
Casing
|
Specific Distance of Creepage
|
mm/
kV
|
Outdoor ≥31
|
Outdoor ≥31
|
Outdoor ≥31
|
Outdoor ≥31
|
Outdoor ≥31
|
|
Indoor ≥25
|
Indoor ≥25
|
Indoor ≥25
|
Indoor ≥25
|
Indoor ≥25
|
|
Dry arcing distance
|
mm
|
≥400
|
≥400
|
≥400
|
≥400
|
≥400
|
|
Creepage distance/dry arcing distance
|
|
≤4.0
|
≤4.0
|
≤4.0
|
≤4.0
|
≤4.0
|
|
13
|
Terminal mechanical strength
|
Random direction
|
N
|
1250
|
1250
|
1250
|
1250
|
1250
|
|
Actual total load
|
N
|
≤ 50% of the dynamic loading
|
≤ 50% of the dynamic loading
|
≤ 50% of the dynamic loading
|
≤ 50% of the dynamic loading
|
≤ 50% of the dynamic loading
|
|
Extreme dynamic loading
|
N
|
A static load of 1.4 times
|
A static load of 1.4 times
|
A static load of 1.4 times
|
A static load of 1.4 times
|
A static load of 1.4 times
|
|
16
|
Bending resistance load
|
N
|
4000
|
4000
|
4000
|
4000
|
4000
|
|
17
|
Insulation material
|
Porcelain bushing
|
Porcelain bushing
|
Porcelain bushing
|
Porcelain bushing
|
Porcelain bushing
|
|
18
|
Electrical conductor
|
material
|
Aluminum
|
Aluminum
|
Copper
|
Copper
|
Copper
|
|
specifications
|
1 Piece 40×8
|
1 Piece 60×12
|
1 Piece 60×10
|
2 Piece 80×8
|
2 Piece 100×10
|
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