SB171 3BSE004802R0001 风电模拟量怎么使用

产品标题：ABB SB171 3BSE004802R0001 风电价优电源数字量控制卡

型号：ABB SB171 3BSE004802R0001 

品牌：ABB

质保：七天验收期，质保期一年
发货期：1-3个工作日

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产品详情资料
 时拉线来满足张拉荷载。应该注意的是
架线部分不能在LAP结构上结束。
在现有架空线路下架线时，应在
准确的交叉点。应在导线上放置一个非运行的纤维绳环
被拴在柱子上。这根绳子的长度应使新导线
不能高于图纸所示的现有线下的指定高度
11.1.在现有线路上架线时，应将其关闭
可能需要结构来帮助在现有线路上架线。列车长是
提升至架线滑车上的适当位置，绳索准备下垂。
11.3选择下垂跨度
应首先计算架线点之间的平均跨度长度。这已经完成了
将架线点之间的总长度除以跨距数。实际
接近此图的水平跨度用于使线下垂。如果可能，此跨度应为
靠近线路中心。如果这不可能，则靠近另一端的跨度中的下垂
沙特阿拉伯电力公司
SDCS-01 SEC配电施工标准
日期：2004年10月G
第24页，共30页
应在终终止前进行检查。下垂跨度应在现场测量
用磁带。
11.4下垂
导体在温暖的日子膨胀，在寒冷的日子收缩。因此，下垂和
因此，导体张力随温度而变化。在下垂发生之前
为了计算弧垂，将记录导线的温度。重要的是
温度的测量应尽可能接近导线的位置，
在下垂期间，温度计应挂在其中一根导线上
下垂跨度的支撑。温度计应静置一分钟
在阅读之前。
当温度已知时，用
垂度图 can be saved by mounting stringing blocks on poles during erection, together with
pilot ropes (to pull the conductors through the wheels from ground level). The stringing
blocks should be clean and running freely. If the section being strung ends on an angle pole,
a temporary guy should be required to cater for the tensioning load. It should be noted that a
stringing section cannot end on a LAP structure.
When stringing under an existing overhead line, a temporary stay should be installed at the
exact crossing point. A nonrun loop of fiber rope should be placed over the conductors
being strung and tied to the stay. This rope should be of such length that the new conductor
cannot go higher than their specified height under the existing line as shown in Drawing
11.1. When stringing over an existing line, it should be switched off and a temporary
structure may be required to help string the line over the existing line. The conductor is
lifted into position on the stringing blocks and the line is ready for sagging.
11.3 Choosing Sagging Span
The average span length between the stringing points should first be calculated. This is done
by dividing the total length between stringing points by the number of spans. The actual
level span nearest this figure is used to sag the line. This span, when possible, should be
near the centre of the line. Where this is not possible, the sag in a span near the other end 
الشرآة السعودية للكهرباء Company Electricity Saudi
SDCS-01 SEC DISTRIBUTION CONSTRUCTION STANDARD
DATE: October 2004G
Page 24 of 30
should be checked before final termination. The sagging span should be measured on site
with a tape.
11.4 Sagging
Conductors expand on warm days and contract on cold days. Because of this the sag and
consequently the conductor tension varies with temperature. Before sagging takes place, the
temperature of the conductor will be noted in order to calculate the sag. It is important that
the temperature is measured as close as possible to the position the conductor will be in,
during sagging and the thermometer should therefore be hung on one of the conductor
supports of the sagging span. The thermometer should be allowed to settle for a minute
before taking r 

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