山东标准滚子链条多少钱

铝合金山东电缆桥架

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。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。

Selection principle of Shandong aluminum alloy cable bridge work ground, is to ensure that the test phase and formed in a closed loop, so that the instrument can get the correct test waveform. It should be noted that the ground wire, and system must work together, make the person, equipment, high pressure equipment and the measured cable cable tray to four parity. To ensure personal safety and equipment in good condition.

山东电缆桥架

电缆的相间故障，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。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。

Fault of Shandong cable tray cable wire, work must be one phase, and the phase and the system must do wire together. The aluminum alloy bridge lead-free casing, in high-voltage flashover test, the vast majority of fault is discharge on the earth or space. Fault relative or space also form a closed loop, but in fact equivalent impedance within the loop is quite large, so the instrument is not the correct test waveform.

山东电缆桥架