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FN5-12R(L)型戶內交流高壓負荷開關-熔斷器組合電器是我廠吸收消化國外先進技術，結合我國的供電要求，自行設計研制而成的。該產品經全面型式實驗和長期的試運行考核、性能達到IEC420《交流高壓負荷開關-熔斷器組合電器》(1990版)和GB3804 《3-63KV交流高壓負荷開關》標準要求，與國外同類產品比較，技術參數已達到同類產品水平，具有體積小、重量輕，可用于環網柜和箱式變電站，廣泛應用于12KV線路的電能分配，并有效地避免了設備的缺相運行。
該產品的研制成功填補了國內空白，可實現開關、隔離和接地三工位。
It is designed and developed by our own company by bringing in international advanced technology, considering our own country’s specificpower supply. It performances meet IEC420 《AC H.V Load Switch with Fuse》(1990 Edition) and GB3804 《3-63KV AC H.V.Load Switch》after strict test and long-time operating. compared to product of the kind in the foreign country , its technical parameter has reached the international level with the features of small volume and light weight. Can be used in package substation and ring network cebin . It is used widely in 12KV distribution network to protect the equipment againet working without phase.
The sucess of the product fills the domestic gap ,with functions of switch、isolating and earthing.
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FN5-12R(L)型戶內交流高壓負荷開關-熔斷器組合電器亦稱帶脫裝置負荷開關(以下簡稱開關)，適用于50Hz，額定電壓6-12KV的網絡中，可開斷負荷電流、過載電流及短路電流，本負荷開關配用CS6-Ⅰ型手動操作機構，本產品專用的CS□手動機構。
It is used in the network of 50Hz rated voltage 6-12KV for breaking load、over-load and short-circuit current , It is equipped with CS6-Ⅰ type handle operating mechanism. It is for the CS□ handle mechanism.
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額定電流（A）
帶脫扣裝置(撞針器)
帶接地閘刀
帶熔斷器
額定電壓
設計序號
戶內負荷開關
Rated current
With tripping gear(striker)
with earth switch
with fuse box
Rated voltage
Designed number
Indoor load switch
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1、海拔不超過1000米；
2、周圍空氣溫度 上限 +40oC 下限-25oC；
3、相對濕度，日平均值不大于95%，月平均值不大于90%(+25oC)；
4、周圍空氣應不受腐蝕性、可燃性氣體等明顯污染；
5、無經常性的劇列運動；
1、The altitude does not exceed 1000m.
2、The ambient air temperatrue : Max:+40oC. Min:-10oC.
3、The relatire humidity of air Daily average ≤95% . Monthly average ≤90% (temperature:25oC)
4、The ambient air should not be obviously polluted by corrosivity and the flammability gas.Etc.
5、The working situation without frequent violent.
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1、負荷開關-熔斷組合電器的技術參數見下表：
Technical parameter of Load Swith Fuse box （please see the table）
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序號
Number
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名稱
Name
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單位
Unit
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參數
Parameter
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| 1 |
額定電壓
Rated voltage
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KV |
12 |
| 2 |
最高工作電壓
Max.working voltage
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KV |
12 |
| 3 |
額定頻率
Rated frequency
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Hz |
50 |
| 4 |
額定電流
Rated voltage
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A |
100 |
| 5 |
額定短路開斷電流
Rated short-circuit switch-off current
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KA |
50 |
| 6 |
1min 工頻耐受電壓（有效值）對地、相間/隔離斷口
1min power frequency withstand voltage(value) to ground、interphase/ isolation break
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KA |
42/48 |
| 7 |
雷電沖擊耐受電（壓峰）值對地、相間/隔離斷口
Lighting impulse resisting voltage (peak) to ground、interphase/isolation break
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KV |
75/85 |
| 8 |
熔斷件撞擊輸出能量
Fuse link striking output energy
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Kg |
≈5 |
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2、組合電器所配負荷開關的技術參數見下表。
Technical parameter of load switch with switch with fuse vox (please see the table)
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序號
Number
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名稱
Name
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單位
Unit
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參數
Parameter
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| 1 |
額定電壓
Rated voltage
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KV |
12 |
| 2 |
最高工作電壓
Max.working voltage
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KV |
12 |
| 3 |
額定頻率
Rated frequency
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Hz |
50 |
| 4 |
額定電流
Rated voltage
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A |
630 |
| 5 |
額定負載有功負載開斷電流
Rated power load switch-off current
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A |
630 |
| 6 |
5%額定有功負載開斷電流
5%Rated power load switch-off current
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A |
31.5 |
| 7 |
額定電容開斷電流
Rated capacity switch-off current
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A |
10 |
| 8 |
額定電感開斷電流
Rated iductacne switch-off current
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A |
40 |
| 9 |
額定轉移電流
Rated transfer current
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KA |
1.3 |
| 10 |
額定短時耐受電流
Rated short-time withstand current
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KA |
20 |
| 11 |
額定峰值耐受電流
Rated peak withstand current
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KA |
50 |
| 12 |
機械壽命
Mechanical life
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次 |
2000 |
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1、框架
2、支柱絕緣子
3、支座接線座
4、刀片
5、滅弧管
6、扭簧及扭簧銷軸
7、導向片
8、觸座接線板
9、拉桿
10、負荷開關轉軸
11、彈簧儲能機構
12、操作機構
1、Framework
2、Post insulator
3、Bearing wiring board
4、Blade
5、Arc extinguisher
6、Torsional spring and its pin bearing
7、Guide bar
8、Wring board
9、Draw bar
10、Load switch moving bearing
11、Spring energy-storing mechanism
12、Operating mechanism
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FN5-12 戶內交流高壓負荷開關
FN5-12 Indoor AC H.V. Load Switch
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1、框架
2、接地刀片
3、接地開關軸
4、支柱絕緣子
5、接地轉軸
6、支座接地板
7、刀片
8、滅弧管
9、拉簧接鈕簧銷軸
10、導向片
11、觸座接線板
12、拉桿
13、負荷開關軸
14、接線開關彈簧儲能機構
15、接地開關彈簧儲能機構
16、負荷開關操作機構
17、接地開關操作機構
1.Framework
2.Earth blade
3.Earth switch moving bearing
4.Post insulator
5.Earth moving bearing
6.Bearing wiring board
7.Blade
8.Arc extinguisher
9.Draw spring and torsional spring’s pin bearing
10.Guide bar
11.wiring board
12.Draw bar
13.Load switch moving bearing
14.Load switch spring energy-storing mechanism
15.Earth switch spring energy-storing mechanism
16.Load switch operating mechanism
17.Earth switch operating mechanism
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FN5-12D戶內交流高壓負荷開關
FN5-12D Indoor AC H.V. Load Switch
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1、FN5-12負荷開關
2、支座熔斷器接線板
3、熔管
4、熔斷器接線板
5、熔斷器支架
注：配RN3熔管電流75A及75A以上的安裝尺寸為括號內尺寸。
1、FN15-12 Load switch
2、Bering fuse box wiring board
3、Fuse link
4、Fuse box wiring board
5、Fuse box support
Notes:The installing size in the bracket is for RN13 fuse link with 75A or above 75A.
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FN5-12R 戶內交流高壓負荷開關
FN5-12R Indoor AC H.V. Load Switch
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1、FN5-12D負荷開關
2、支座熔斷器接線板
3、熔管
4、熔斷器接線板
5、熔斷器支架
注：配RN3熔管電流75A及75A以上的安裝尺寸為括號內尺寸。
1、FN15-12D Load switch
2、Bering fuse box wiring board
3、Fuse link
4、Fuse box wiring board
5、Fuse box support
Notes:The installing size in the bracket is for RN13 fuse link with 75A or above 75A.
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FN5-12DR戶內交流高壓負荷開關
FN5-12DR Indoor AC H.V. Load Switch
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1、FN5-12負荷開關
2、支座熔斷器接線板
3、熔管
4、熔斷器接線板
5、熔斷器支架
注：配RN3熔管電流75A及75A以上的安裝尺寸為括號內尺寸。
1、FN15-12 Load switch
2、Bering fuse box wiring board
3、Fuse link
4、Fuse box wiring board
5、Fuse box support
Notes:The installing size in the bracket is for RN13 fuse link with 75A or above 75A.
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FN5-12R/S 戶內交流高壓負荷開關
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