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Technical standards for elevator installation inspection

Note: The elevator inspection technical standards are mainly based on GB7588-95 "Safety Code for Elevator Manufacturing and Installation", GB10058-88 "Elevator Technical Conditions", GB10059-88 "Elevator Test Method", GB10060-93 "Elevator Installation Acceptance Specification".

1 Each elevator should be equipped with an independent main power switch, which should be installed at the entrance of the machine room for easy operation, and its capacity should be able to cut off the maximum current of the elevator in normal use

2 When there are two or more traction machines in the same machine room, the signs of the elevator corresponding to each switch should be set.

3 A counter with a locking device should be provided in the control circuit. No trouble-free trial operation shall be no less than 3000 times.

4 The control system should be equipped with effective phase sequence, phase failure and overload protection devices.

5 The traction machine should be equipped with a manual emergency operation device. In the case of loading and opening, manpower should be able to manually move the elevator up and down. Gearless elevators should be equipped with emergency electric operating devices, so that the elevator can be leveled nearby when the power is cut off.

6 The lifting direction of the car should be clearly marked at the turning point.

7 The action of the brake should be flexible and reliable, there should be no grinding and insertion during operation, and there should be no impact sound when stopping. Operation with brakes is strictly prohibited. The opening gap should not exceed 0.7mm.

8 When the tachogenerator is driven by chain or belt, a safety switch should be provided. After the feedback voltage is cut off, the elevator should brake immediately.

9 The speed limiter adjustment position is sealed. Indicate the speed of action, and indicate the direction of rotation in response to the action of the clamp; the speed limiter should undergo a calibration experiment every two years.

10 When the rated speed is greater than 1 m/s, the speed limiter should be equipped with a safety switch

11 The upper and lower limit switches should be intact and effective, and should not operate simultaneously with the upper and lower limit switches. After the limit switches are activated, neither the counterweight nor the car should contact the buffer.

12 When the car and counterweight are completely on the buffer, the further guiding stroke of the guide rail must not be less than the requirement of 0.1+0.035V2(m).

13 The counterweight side of the car top should be provided with protective fences. When the distance between the other sides and the hoistway wall is greater than 300mm, protective fences should be provided.

14 The force of the traction wire rope should be similar, the difference of the device should meet <=5%, the rope head combination should be reliable, the rope head plate should be fixed firmly, and the traction rope should not be bent, twisted, broken wire, or worn.

15 The car top should be equipped with a maintenance operation device that can cut off all operations in the car and the automatic switch circuit. Each button switch should be marked with its function name, and the safety switch should have a red mark.

16 When the car is equipped with a safety window, the car safety window should be equipped with an effective safety switch.

17 The clearance between the lower end of the landing door and the car door and the sill should be 4-8mm, and the landing door slider should be firmly fixed, and the slider should not come out of the sill chute. 18 The engagement depth of the door opening knife and the door pulley should meet >=5mm , Door knife and pulley, door knife and sill, pulley and car sill should not collide during operation.

19 Elevator accessories landing doors should be equipped with direct electrical and mechanical interlocks, the engagement depth should meet >=7mm, the side gap should be 1-3mm, the contact should be reliable, the fixing should be firm, and the passive door should be open and closed.

When the 20th floor door is opened, in an emergency state, the elevator should run at an inspection speed of <0.63m/s