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。
Bell Gossett Centrifugal Pump and 5 HP MARATHON MOTOR
ACCO Wright Way 2 TON Electric Hoist 1 HP 3 PHASE
YALE 1/2 Ton Electric Hoist
P&H HARNISCHFEGER OVERHEAD ELECTRIC HOIST, 2-TON
Portage Model 30 Rotary Layout Table with Multi-Axis P
A02B-0076-8401 Bendix GE Fanuc Index Table
GOULDS PUMP STATION WITH 2 PUMPS & CONTROLS 1DW51D4EA
TOMBSTONE 16 X 8 X 28.5