Elements and Calculations Affecting Width of Cable Bridge

电缆桥架宽度B确实定与电缆任务的性质有关，由于电力电缆和控制电缆的任务方式不同，所以电缆桥架宽度普通也有所不同。

Width B of cable bridge is definitely related to the nature of cable task. Because of the different tasks of power cable and control cable, the width of cable bridge is generally different.

电力电缆在桥架内普通是单层程度排放，所以其装置桥架宽度B爲：

Power cable in the bridge is generally single-layer emission, so its device bridge width B is:

式中：d1、d2、d3…爲桥架内各种电缆的外径，单位爲mm。

In formula: d1, d2, d3... For the external diameter of various cables in the bridge frame, the unit is mm.

n1、n2、n3…爲上述同种型号规格电缆的根数。

N1, N2, N3... The number of cables of the same type and specifications mentioned above.

k1、k2、k3…爲上述电缆放置时的间距。其值小应大于电缆直径的1/4。

K1, K2, K3... For the spacing of the above cables when placed. The minimum value should be greater than 1/4 of cable diameter.

普通状况下，控制电缆在桥架内既可以程度陈列，也可以叠放。以其桥架内控制电缆总截面S不超越电缆桥架总截面S0的40%爲准绳。控制电缆的截面S爲：

Under normal conditions, the control cables can be displayed or overlapped in the bridge frame. The criterion is that the total section S of the control cable in the bridge does not exceed 40% of the total section S 0 of the cable bridge. The section S of the control cable is:

式中：S1、S2、S3…爲桥架内各种控制电缆的截面积(包括护层局部)单位爲mm2;d1、d2、d3…爲桥架内各种控制电缆的外径，单位爲mm;n1、n2、n3…爲上述同种型号规格电缆的根数。

Formula: S1, S2, S3... The cross-sectional area of various control cables in the bridge frame (including the local protective layer) is mm2; d1, d2, D3.. For the external diameter of various control cables in the bridge, the unit is mm; n1, n2, N3.. The number of cables of the same type and specifications mentioned above.

相应的控制电缆桥架的宽度爲b：

The width of the corresponding control cable bridge is b:

式中：h——电缆桥架的高度，单位爲mm。

Type: H - the height of cable bridge in mm.

爲保证桥架平直美观，划一分歧，它的程度方向载荷形变普通应控制在4.0mm以内。依据所选取的电缆桥架宽度和所要求的桥架程度方向载荷形变的大小，查对相应机构方式的桥架荷载的特性曲线，当不能满足形变要求时，可以适当增大桥架侧高或许减小支撑间距，以便满足装置要求。

In order to keep the bridge straight and beautiful and divide into different parts, the degree and direction of load deformation should be generally controlled within 4.0 mm. According to the width of the selected cable bridge and the load deformation in the required direction of the degree of the bridge, the load characteristic curve of the corresponding mechanism mode of the bridge can be checked. When the deformation requirement can not be met, the side height of the bridge can be appropriately increased or the spacing of the support can be reduced to meet the requirements of the device.

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In summary, all the above-mentioned Jinan Hangfeng Industrial Co., Ltd. provides, want to know more about Shandong cable bridge, welcome to pay attention to our website: http://www.sdhangfeng.com Thank you for your support!