電站用穿墻套管適用于35kV及以下電壓等級(jí)的電站、變電所配電裝置及電器設(shè)備中，供導(dǎo)線（母線）穿過接地隔板，墻壁及封閉配電機(jī)構(gòu)中作為絕緣支持和外部導(dǎo)線（母線）連接用。
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）產(chǎn)品分類Product categories
電站用高壓穿墻套管分為戶內(nèi)和戶外兩大類，有銅導(dǎo)體、鋁導(dǎo)體及不帶導(dǎo)體的母線式穿墻套管三種結(jié)構(gòu)，并有普通型和耐污型兩大類產(chǎn)品。
Wall bushingdivided 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.
（三）產(chǎn)品制造依據(jù)Product manufacturing basis
高壓穿墻套管性能符合GB12944.1-91《高壓穿墻套管技術(shù)條件》、GB12944.2《高壓穿墻套管尺寸與特性》的規(guī)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.
二、主要技術(shù)參數(shù) Main technical parameters
（一）使用環(huán)境
1.戶內(nèi)套管Indoor bushing
a)環(huán)境溫度不高于+40℃，不低于-40℃；
The environment temperature is ≤ + 40 ℃, ≥- 40 ℃
b)海拔不超過1000m;The altitude does not exceed 1000 m;
c)相對(duì)濕度月平均不大于90%；
The average ≤ 90% relative humidity;
d)周圍空氣應(yīng)不受腐蝕性和可燃?xì)怏w、水蒸汽等明顯污穢；
Ambient air should not be obvious, such as corrosive and flammable gas, water vapor and filth.
e)無經(jīng)常性的劇烈振動(dòng)。No recurrent severe vibration.
2.戶外套管Outdoor bushing
a)環(huán)境溫度不高于+40℃，不低于-40℃；
The environment temperature is ≤ + 40 ℃, ≥- 40 ℃
b)海拔不超過1000m;The altitude does not exceed 1000 m;
c)風(fēng)速不大于34m/s；Wind speed is not more than 34 m/s;
d)產(chǎn)品的使用環(huán)境的空氣污穢程度，按GB5582分為0、Ⅰ、Ⅱ、Ⅲ、Ⅳ等五級(jí)；
Products using the environment air polluted degree, accord to GB5582 into 0, Ⅰ, Ⅱ, Ⅲ, Ⅳ;
e)無經(jīng)常性的劇烈振動(dòng)。No recurrent severe vibration.
（二）型號(hào)說明 Model specification
CWB—戶外-戶內(nèi)圓導(dǎo)桿穿墻瓷套管Indoor-outdoor circular guide wall porcelain bushing；
CWC—戶外-戶內(nèi)穿墻瓷套管Indoor-outdoor wall porcelain bushing；C—抗彎破壞負(fù)荷等級(jí)Bending failure load level，12kN（加強(qiáng)型enhanced）。
CWL—戶外-戶內(nèi)鋁導(dǎo)體穿墻套管Indoor-outdoor aluminum conductor wall bushing