ABB DSMB-02C 风电模拟 英文说明

产品标题：ABB DSMB-02C风电价优电源数字量控制卡

型号：ABB DSMB-02C

品牌：ABB

质保：七天验收期，质保期一年
发货期：1-3个工作日

产品图片展示

产品详情资料
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
垂度图表。弧垂板条固定在弧垂跨度内的每个电杆上。这条板条是直的
木材长度以及板条与
导线穿过架线轮是从表或垂度图上读取的值。
指定进行下垂的人员将站在其中一个
下垂板条，并从一条下垂板板条的顶部到上垂板条的顶端画一条视线
图11.2所示的另一个电杆。当导线的垂度与其线路水平时
看得出，它的下垂度是正确的。建议的做法是通过
10%（即降低10%的下垂度），并在终前静置约15分钟
松弛到正确的下垂度。
11.5下垂非水平跨度
当中间没有水平跨度时，非水平跨度只能用作下垂跨度
架线点。非水平跨度的垂度通过“非水平跨度”确定
垂度公式”，如图11.3所示，用水平垂度表示垂度
相同长度的跨度。16.4节中规定的测量弧垂的相同方法为
除弧垂板条和导线所在点之间的垂直距离外使用
穿过架线滑车的长度应为根据非水平跨度垂度计算得出的值
公式。
11.6装订
当下垂操作完成时，导线被转移到绝缘子上
导线端接。柱形绝缘子应紧固在销钉上。这个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 reading.
When the temperature is known, the corresponding sag for the sagging span is read off the
sag charts. A sag lath is fixed on each of the poles in the sagging span. This lath is a straight
length of wood and the vertical distance between this lath and the point at which the
conductor runs through the stringing wheel is the value read off the table or sag chart.
The person who is appointed to do the sagging will position himself behind one of the
sagging laths and take a sight line from the top of one sag lath to the top of the sag lath on
the other pole as shown in Drawing 11.2.When the sag of the conductor is level with his line
of sight, it is at the correct sag. It is recommended practice to over-tension the conductor by
10% (i.e. decrease sag by 10%) and allow to settle for about fifteen minutes before finally
slacking back to the correct sag.
11.5 Sagging Non-Level Spans

Non-level spans shall only be used as sagging spans when there are no level spans between
stringing points. Sags for non-level spans are determined by means of the “Non-Level Span
Sag Formula” given in Drawing 11.3 which express the sag in terms of the sag of a level
span of the same length. The same method as for measuring sag specified in section 16.4 is
used except the vertical distances between the sag lath and the point at which the conductor
runs through the stringing block shall be the values calculated from the non-level span sag
formulas.
11.6 Binding
When the sagging operation is finished, the conductor is transferred to the insulators and the
conductors terminated. The post type insulators shall be tightened on the pins. The
conductors are placed in the top groove of post insulators on IMP structures. Top ties should 
导线放置在IMP结构的支柱绝缘子的顶部槽中。顶部系带应

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