1. Regular inspection: Household elevators do not require mandatory acceptance, but the time interval for comprehensive inspection of household elevators should not exceed 12 months, especially regarding the effectiveness of the following items; 

a) Door lock device (for sliding doors); 

b) Electrical safety devices; 

c) Grounding continuity; 

d) Support and suspension system; 

e) Drive device and brake; 

f) Devices to prevent free fall and overspeed descent, such as speed limiters and safety clamps; 

g) Alarm system; 

h) Door protection devices (such as safety touch panels and light curtains); 

i) Inspection of the inner surface of the shaft (such as distance, surface, and sharp edges); 

j) Guide rails and boots; 

k) Lighting and emergency lighting; 

l) Emergency operation device; 

m) All identification.