a. Electrical safety device of gantry crane
 General power switch earth leakage protection device
 Crane travelling emergency stop button 
 Crane travelling warning light
 Lifting travel limit（max）, crane travel limit and trolley travel limit
 Lifting load limiter
Anemoclinograph
 Lifting trolley travel locking device
 Crane stop rail clamping device
b. Electrical system protection device
  Lightning arrester
Overload, overcurrent, short-circuit protection, monitoring indicator and interlocking device
Overvoltage, undervoltage protection; mechanical and electric interlock mechanism (avoid misoperation)
Gantry crane sets up inclined staircase, handrail, walking platform and other safety auxiliary facilities to ensure convenient construction and personnel safety.