描述
接地总干线与接地体之间应采用焊接。埋地的接地干线可用有效截面积相同的热镀锌扁钢或圆钢进行焊接。接头可采用搭接,扁钢搭接长度为宽度的2倍,园钢为直径的6倍,接触应良好,连接应牢固,焊接处应做防腐处理。
ATMI Ecosys Vector Ultra 3000 Abatement System Used
Edwards iGX600N Dry Vacuum Pump Refurbished Unused
Edwards iGX600 Dry Vacuum Pump Refurbished Unused
AM&D Vacumizer 100, Ametek 7.5HP, 480V Vacuum Pump Good
MKS Portable Vacuum Calibration System PVS-6 Baratron
NASH CL9002 VACCUM PUMP TEST #85S0182 CAST IRON POS 1