山东花海花卉穴盘苗

在技术上具有海量参数的电缆桥架在选型时桥架的所有零部件符合系列化、通用化、标准化的成套要求应体现结构简单，配置灵活和维修方便等特点，全部零件均需进行镀锌处理，安装在建筑物外露天的桥架，如果是在邻近海边或属于腐蚀区，则材质必须具有防腐、耐潮气。

In technology with mass parameters of bridge in the model selection of the cable tray in the seriation, generalization and standardization of complete sets of all parts meet requirements should reflect a simple structure, flexible configuration, and maintenance is convenient wait for a characteristic, all parts are to be galvanized processing, installation outside the building open bridge, if it is in near the sea or belong to the corrosion area, must have the anti-corrosion material, resistant to moisture.

山东电缆桥架

Shandong cable tray

铝合金桥架工作地线的选择原则，是要确保测试相与其构成为一闭合回路，使本仪器能够得到正确的测试波形。还应注意的是，工作地线必须和系统地连在一起，使人、仪器地、高压设备地以及被测电缆的电缆桥架地四体同位。以确保人身安全和仪器设备完好。

Aluminum alloy bridge work principle of selecting ground, is to ensure that test phase with a closed loop, make this instrument can get the correct test waveform. Work should also be noted that ground wire must be systematically together, make the person, equipment, high pressure equipment and the cable tray to four segments of the cable under test with. In order to ensure the personal safety and equipment in good condition.

若电缆是相间故障，工作地线必须是其中一相线，且做地线的相线必须和系统地连在一起。对于无铅套管的铝合金桥架，在进行高压闪络测试时，绝大多数故障是对大地或空间放电。从理论上讲，故障相对地或空间也形成一闭合回路，但实际上回路内的等效阻抗相当大，从而仪器上也就得不到正确的测试波形。山东电缆桥架

在测试中如果遇到这种情况可采取对可疑故障点直接定点的方法来解决。无论什么地线，其接地点一定要可靠。

If the cable is interphase fault, ground work must be one of the phase line, and do the ground line must together and systematically. For lead-free casing of the aluminum alloy bridge, the high voltage flashover test, most of the fault is on the earth or space discharge. Theoretically, fault relatively or space also form a closed loop, but in fact in the loop of the equivalent impedance is quite large, which also won't get the correct test waveforms on the instrument. Shandong cable tray in the test if you encounter this kind of circumstance can adopt to doubtful point of failure point method to solve directly. Regardless of the ground, the ground must be reliable.