【 Weak current College 】 elevator manufacturing and installation of the security specifications change larger content summary

GB7588-2003 the elevator manufacturing and installation of the security norms relative GB7588-1995 change larger content summary
1.3 main switch in the off position should be able to use the padlock or other equivalent device locks to ensure that there is no error.

2.6 wells road lighting switch (or equivalent) should be in the engine room and pit respectively to the two places are able to control the shaft road lighting.

Pit in Wells road lamp switch, opening the door to the pit should be easy to close.

4.1 by AC or DC power supply for motor directly, you must use two independent contactor cut off the power, the contactor contacts should be concatenated to the power circuit. Elevator stops, if one of the main contactor contacts is not open, most late next run direction changes, the need to prevent the car running again.

4.2 AC or DC motor with static electricity and control components, should be consistent with section section 12.7.3 GB7588.

Use DC generator-motor-driven elevator, its stop elevator drive host and check the stopped state part should be consistent with section section 12.7.3 GB7588.

4.3 DC generator-motor-driven elevator, its stop elevator drive host and check the stopped state part should be consistent with section section 12.7.3 GB7588.

4.4 above 4.3 and 4.2 the monitoring device do not need to be a safety circuit. However, only meet the requirements of article 7.1 later to obtain and use two independent contactor to cut off the motor current is the same effect, in order to use these devices.

Motor running time limiter actions, to restore normal operation of elevator only by manual reset. Resume broken power, traction machine does not need to remain in the stop position.

6.8 motor operation time limit for actions, to restore normal operation of elevator only by manual reset. Resume broken power, traction machine does not need to remain in the stop position.

Appendix A lists the 8.1GB7588 an electrical safety device actions should be following 8.7 of prevent lift hosts start, or make it stop immediately.

Electrical safety devices including:

A) one or several safety-contact, which is directly cut off power supply to drive a host of contactors or relay contactor of supply;

B) satisfy the standard requirements of safety circuits, including one or more of the following:

1) one or several meet standard requirements of the safety contacts, they are not directly off the main circuit contactor or power relay contactors;

Not meet the security requirements of the contact points of contact;

C) meet the requirements of Appendix H GB7588 symbol. (Connected)

8.4 and electrical safety circuit on the different points of connection only allows to capture information. These connected devices should meet the requirements of the safety circuit.

8.9 for safety circuits of sensor components should be consistent with Appendix f F6.3.1.1 GB7588.

9.5 contains electronic components of the safety circuit is security components, in accordance with the requirements of GB7588 in F6 to validate.

9.6 for printed circuit board shall meet the requirements of the table in Appendix H GB7588 H1 (3.6).

10.1 elevator electrical installations and electrical equipment electromagnetic compatibility should comply with the requirements of EN12015 and EN12016.

17.3 for removable disk driver wheel, at the latest in disk driver wheel mounted lift driver host, there is an electrical safety device is the action, so that the lift cannot be electric start.

17.6 emergency electric running switch itself or through another consistent with electrical safety devices provided by the electrical switch should make Dooly overspeed protection device of electric equipment failure.

18.5 emergency alarm system shall use a two-way intercom system, in order to continue with the rescue services. In launching this intercom system, sedan trapped passengers should no longer have to do any other operation.

18.6 if wells road, staff there were stranded without risk, by car or underground road escape, there should be in the risk Department sets the alarm device. The alarm device shall also be consistent with the above 18.2 and 18.5.

19.4 all participating to impose the brake wheel or wheel braking force brake machinery parts should be set in two assemblies. If a set of components does not work, there is still enough brake force that contained the load rating to rated speed downlink speed downlink of car.

Electromagnetic coil cores are considered mechanical parts, and coils are not.

20.2 traction wheels, pulleys and sprockets should GB7588-2003 table 3 sets of the protective device, to avoid:

A) personal injury;

B) rope or chains for relaxation while out of the Groove or sprocket;

Entering the rope and rope grooves or chains and sprockets.

20.3 the protective devices should be able to see the rotating parts without prejudice to the checks and maintenance work. If the protective device is meshed, its hole size should be consistent with GB12265.1-1997 table 4.

Protective device only in the following situations can be removed:

A replacement wire rope or chain);

B) replace the rope or chain;

C) reprocessing Groove.

Safety coefficient suspension rope 21.6 should GB7588-2003 Appendix N calculations. In any case, the safety factor should not be less than the following values:

A) for three or three more rope for traction lifts to 12;
R > b) for two rope's traction lifts to 16;

C) for 12 Web lifts;

Safety factor is equipped with rated load of the car to stop * in the lowest level station, a rope of minimum breaking load (N) and the rope is most strongly (N) ratio.

22.3 rope traction should meet the following four conditions:

A) car mount to 125% of the rated load of circumstances should remain flat layer status does not slip;

B) must be guaranteed in any emergency braking situations, regardless of the car is empty or loaded, its deceleration values cannot exceed the buffer (including reduced stroke buffer) when the deceleration values.

C) when the pressure in the buffer on the traction machine press the elevator up direction rotation should be can't enhance the unladen car.

D) traction calculation should be consistent with GB7588-2003 Appendix M.

23.9 force-driven elevator should have a electrical safety device, the device on the rope or chain relaxation time will make the elevator should stop running. This equipment and these 23.7 requirements can be the same device.

25.2 compensation rope used must meet the following criteria:

A) using the tension wheel;

B) tensioning wheel pitch diameter and compensation rope diameter ratio of not less than 30;

C) tensioning wheel should set the protection devices;

D) gravity keep compensation rope tensioning status;

With an electrical safety devices to check for the compensation of Xiao Zhang tight rope.

29.1 traction-driven elevator, should be installed Dooly overspeed protection device.

The device includes speed monitoring and deceleration components, should be able to detect the uplink speed out of the car, its lower limit is the elevator the rated speed of 115% of the ceiling is the front 26.2, and should be able to make the car-park, or at least make it slower to the design of the buffer.

The device should function 29.2 in:

A) cabin; or

B) on the weight; or

C) wire rope system (hanging rope or compensation rope); or

Traction wheel (for example, direct role in traction wheel, or in most * near traction wheel traction axle).

29.3 if the appliance requires external energy to drive, when the energy is not, the device should be able to make the elevator brake and keep it in a stopped state. Belt-driven compression spring.

The device should be can't 29.4 without those in elevator functioning control speed, slow down or stop, with the participation of the part to the requirements of the preceding 29.1, unless these parts exist internal redundancy.

The device in action, can be connected with the car to help complete a mechanical device, regardless of the mechanism for other purposes.

The device to enable 29.5 empty cabin system stop period, its maximum deceleration shall not be greater than 1gn.

29.6 Dooly overspeed protection device movement of the elevator speed monitoring part should be consistent with the requirements of the preceding 26 part Builder or similar device.

29.7 uplink overspeed protection device actions so that an electrical safety devices.

29.8 uplink overspeed protection device actions, should be made by qualified personnel make it free.

The appliance release, you should not need to be close to the car or counterweight.

29.9 release, the device should be in good working condition.

Type test reports shall be consistent with the provisions of Appendix F7 GB7588, on-site physical and installation status should be the type test conclusions (for example, allow the quality, speed and the Rails action etc).

36.3 if car door needs to be locked (see section 47.6c)), the locking device design and operations should be used with layer door locking devices of similar structure, and equally as GB7588 Appendix F1 of type test.

39.4 for freight elevator, in order to prevent non-excluded personnel passenger possible overloading, cabin area should be restricted. Typically, rated load and car maximum effective area of the relationship should be consistent with GB7588-2003 table 1.

Exceptional circumstances, in order to meet the requirements to qualify for both the provisions of table 1), in its laden Elevator Safety subject to effective control, the cabin area exceeds the requirements of the table 1.

Here the "effective control" means:

Design and calculation of a) the elevator should consider car actual loading capacity has reached the cabin area according to table 1 provisions corresponding to the rated load of the lift force all related components (such as Dray and termination equipment, traction axle, tractor gear, brakes, car and car racks, etc.) have sufficient strength and stiffness, rope and traction wheel slipping between the safety clamp, buffer can meet use requirement;

B) cabin of overloading should consist of one line with the above 32 part of overload alarm device to monitor;

C) should be in the working area from the station to see the total position sets a flag indicating that the freight elevator load rating;

D) should be dedicated to the delivery of specific light cargo, its volume can guarantee full cabin, the total mass of the goods does not exceed the rated load;

E) Elevator have full-time drivers and strictly limited access.

B a), above), c) from the elevator manufacturer; d), e) the user is responsible for the elevator.

In addition, the freight elevator design computing not only consider the rated load, but also may enter the car's handling device for quality.
BR > for approved and trained users using non-commercial vehicle lifts, rated capacity should by company car the effective area of not less than 200kg/m2. 39.5 passenger elevator and beds elevator maximum rated load and effective relationship between the area shall be consistent with GB7588-2003 table 1.

For cabin of recessed and bumps, regardless of height is less than 1m, also regardless of whether there is a separate door protection, in the calculation of car maximum effective area must be counted.

When the door is closed, the cabin entrance of any effective area are counted.

In order to allow the car design changes on GB7588-2003 table 1 the rated load of the corresponding car maximum effective area allows the increase of not more than 5% of the table column.

In addition, the car's overload should be a consistent with provisions of the preceding part 14 of overload alarm device to monitor. 42.3 from car top outer edge over a horizontal distance of free 0.30m, car top should be equipped with a guardrail.

Free distance should be measured to Wells road, Wells road wall has a width or height is less than 0.30m dimple, allows the pits are slightly larger distances.

42.4 guardrail by handrails, high retaining skirting 0.10m and the fence height halfway up the Middle rail.

According to the fence handrail outside edge of the horizontal distances free, handrail height:

A) when the free distance not greater than 0.85m, should not be less than 0.70m;

When the free distance greater than 0.85m, should not be less than 1.10m. 42.5 handrail outer edge and wells road in any parts [on (or balance weight), switch, Rails, bracket, and so on] the horizontal distance between should not be less than 0.10m.

Personnel should be able to safely and easily through the barrier of entry to enter the car top.

Guardrail should be installed in car top edge up to 0.15m.

45.5 Rails and accessories and connectors should be able to withstand the elevator safety operation imposed on load and stress. Guide of calculation should be consistent with GB7588-2003 Appendix G and section 10.1.2. 49.2 on (or balance weight) in operation area should be rigid barrier protection, the barrier from the elevator pit floor max 0.30m Office up to the height of at least 2.50m. Their width should be at least equal to the weight (or balance weight) in width on each side with 0.10m.

If this barrier is net pass, you should follow the GB12265.1-1997 section 4.5.1.

In exceptional cases, to pit installation position of the elevator components, allows the barrier on minimal gaps. 49.3 are more than one elevator shafts, different elevator movement parts should be set across the barrier. Barrier to net pass, you should follow in 4.5.1 GB12265.1-1997.

Barrier should be at least from the cabin, on heavy (balance) trip to the lowest point of the lowest floor stand floor above 2.50m height. Width should prevent staff from one pit pit to another. Meet the previous 48.4b) exceptions.

If the cabin top edge and the adjacent elevator movement parts [cabin, on (or balance weight)] horizontal distance less than between 0.50m, this barrier should be throughout Wells road. Their width should be at least equal to the moving parts or moving parts of the need to protect some of the extra width per edge 0.10m. 53.2 wells road should have permanent electrical lighting, even if all the doors closed car top surface above and pit floor above 1m Department of illuminance is at least 50lx.

Lighting should set: Wells road, the highest and lowest point within the installation of a 0.50m lamp, the lamp in the Middle again.

For partial closure well road, if well road near enough shafts of electrical lighting, can not set lighting. Excerpted from the traction and force-driven elevator type test rules