描述
保护地(CG,Cabinet Grounding)
是为了防止设备外壳的静电荷积累、避免造成人身伤害而采取的保护措施。DCS系统所有的操作员机柜、现场控制站机柜、打印机、端子柜等均应接保护地。保护地应接至厂区电气专业接地网,接地电阻小于4Ω。
A
NEW SIEMENS 6ES7 214-1CC01-0XB0 MODULE 6ES72141CC010XB0
NEW STI MS4300 LIGHT CURTAIN COMPLETE SET 24″
KAWASAKI 50999-2145R10 PC BOARD 509992145R10
NEW MITSUBISHI FR-A520-1.5K-NA INVERTER FRA52015KNA
NEW YAMAHA SRCX 20 CONTROLLER
LUST MC6404 CONTROLLER
COMPUMOTOR MICROSTEP DRIVE AX106-178
XYCOM 5017-T FLAT PANEL MONITOR 5017
SIEMENS 6RB2100-0NA11 BOARD
NEW ALLEN BRADLEY 512-DJB-6P-26R DISCONNECT SIZE 3
NEW CHARMILLES M55B-659671001 BOARD