ABB NPCT-01C 产品重量

产品标题：ABB NPCT-01C 咨询咨询 电源数字量控制卡

型号：ABB NPCT-01C 

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
SEC配电施工标准
日期：2004年10月G
15页，共30页
10.2.3中等土壤中的基础
电杆上的合力由开挖墙上的对接支承面积抵抗。
土壤应适当回填并夯实，尤其是在表面。伟大的
基础上的应力在接地线处，并向电杆对接方向减小。混凝土
应在施加荷载前至少固化三天。
10.2.4松散土壤中的基础
在松散土壤中，应通过增加基脚面积来加固地基。分裂
只有在由于侧面塌陷而难以挖掘的情况下才应使用桶
至于非常松散的细砂。该方法使用由分离桶或
拆除底座的直边钢油桶。模板应具有直径
至少为1米，因此可能需要将桶沿侧面分开，并连接两个或三个
形成所需的模板。
在上述方法可能不适用的情况下，例如土壤非常松散
对于水，可使用套管基础类型。
10.2.5运河沿线设置的电杆
设置在渠道或
距离运河边缘1200 mm以内，应为标准深度加上1100 mm
详见图10.1（从电杆孔下侧测量的深度）。在以下情况下
运河深度超过1.60 m，坡度大于IV:3H，2200 mm（而不是
1100 mm）应添加到标准深度。在挖洞达到
所需的埋置深度是不可能的，例如土壤不合适
可使用图纸10.2中详述的套管基础类型的坍塌可能性。
10.3斜锚基础
拉线锚基础应具有与拉线相同的强度要求。这个
锚阻力应计算为投影表面积乘以允许值
土壤的抗压强度。锚的面积必须足以防止切割
穿过地球；i、 e类；紧靠锚上方和与锚接触的地面不得
轴承故障。锚必须埋得足够深，以防止
土体提升锥体的拉力。因此，应设计斜撑基础
抵抗上拔力和滑动力。SEC DISTRIBUTION CONSTRUCTION STANDARD
DATE: October 2004G
Page 15 of 30
10.2.3 Foundation in Medium soil
The resultant forces on pole are resisted by the bearing area of butt on the excavation wall.
The soil should be fairly backfilled and well rammed, especially at the surface. The greatest
stress on the foundation is at ground line and decreases towards the butt of pole. Concrete
shall be cured for at least three days before load is applied.
10.2.4 Foundation in Loose Soil
In loose soil foundation should be strengthened by increasing the footing area. The split
barrel should be used only where digging of hole is difficult due to collapsing of sides such
as for very loose fine sand. The method uses shuttering made up from split barrels or
straight side steel oil drums with the bases removed. The shuttering should have a diameter
of at least 1 m so it may be necessary to split the barrels down the sides and join two or three
together to form the required shuttering.
In situation where above methods may not be applicable such as if soil is very loose and
with water, cased foundation type may be used.
10.2.5 Poles set along the canal
The foundation depth (direct embedment type) of poles that are set on the slope of canal or
within 1200 mm from the edge of canals, shall be the standard depth plus 1100 mm as
detailed in Drawing 10.1 (depth measured from the lower side of pole hole). In cases where
depth of canal is more than 1.60 m and slope is steeper than IV:3H, 2200 mm (instead of
1100 mm) should be added to the standard depth. In situation where digging of hole to attain
the required embedment depth is impossible, such as when soil is not proper and there are
chances of collapsing, cased foundation type as detailed in Drawing 10.2 may be used.
10.3 Stay Anchor Foundations

Stay anchor foundations shall have same strength requirements as specified for guys. The
anchor resistance shall be calculated as the projected surface area multiplied by allowable
compressive resistance of the soil. Area of the anchor must be sufficient to prevent cutting
through the earth; i. e; the earth immediately above and in contact with the anchor must not
fail in bearing. The anchor must be buried deep enough to prevent the vertical component of
the pull from lifting cone of earth body. Therefore the stay foundations shall be designed
against the uplift forces as well as sliding forces. 

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