GB 28755-2012 English PDFUS$509.00 · In stock
Delivery: <= 4 days. True-PDF full-copy in English will be manually translated and delivered via email. GB 28755-2012: Safety rules for simple lifts Status: Valid
Basic dataStandard ID: GB 28755-2012 (GB28755-2012)Description (Translated English): Safety rules for simple lifts Sector / Industry: National Standard Classification of Chinese Standard: J80 Classification of International Standard: 53.020.99 Word Count Estimation: 22,212 Quoted Standard: GB/T 5972; GB 6067.1-2010; GB/T 7024; GB 8903; GB 8918; GB 25856-2010 Regulation (derived from): National Standards Bulletin No. 28 of 2012 Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China Summary: This Chinese standard specifies the simple lift of design, manufacture, installation, alteration, repair, use, inspection and other basic safety requirements. This standard applies to tractors, forced type, rack and pinion, and a simple direct action hydr GB 28755-2012: Safety rules for simple lifts---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.Safety rules for simple lifts ICS 53.020.99 J80 National Standards of People's Republic of China Easy lift safety regulations Published 2012-11-05 2013-02-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China issued Table of ContentsPreface Ⅰ 1 Scope 1 2 Normative References 1 Terms and definitions 1 3 Basic requirements 4 2 5 construction (structure) 3 Metal Structure 5 6 7 7 major components Electrical equipment 12 8 9 security devices 13 10 markers, signs and safety signs 15 11 operates 16 12 inspection, testing, maintenance and repair 17ForewordThis standard of Chapter 1, Chapter 2, Section 3 recommendatory, and the rest are mandatory. This standard was drafted in accordance with rules GB/T 1.1-2009 given. The standard proposed by China Machinery Industry Federation. This standard by the National Standardization Technical Committee crane (SAC/TC227). This standard is drafted. Ningbo Special Equipment Inspection Institute. Participated in the drafting of this standard. Special Equipment Inspection Institute of Fujian Province, Zhejiang Province Special Equipment Inspection Institute, Ningbo Misaki crane Armed Ltd., Taizhou Brief introduction Lifting Equipment Co., Ltd., Fujian Jinjiang City Hengsheng Electrical Crane Co., Ltd., Liaoning Province Safety Science Research Institute of Special Equipment Safety Testing and Research Institute, Henan Province, Luoyang City Special Equipment Inspection. The main drafters. Caoguang Min, Chen Feng, Wang Jian child, can LIU Ji, Wang Jian, Ma Yi-Jian, Yu-jen its bell plum member, Chen Huihuang, wool double living, Yin Xiande, Guo Pengwei. Easy lift safety regulations1 ScopeThis standard specifies the basic safety requirements for simple lift design, manufacture, installation, alteration, maintenance, use, inspection and other aspects. This standard applies to traction type, compulsory, and rack and pinion type simple direct-acting hydraulic elevator. Other types of simple structure Referring lift may be used.2 Normative referencesThe following documents for the application of this document is essential. For dated references, only applies to the version dated paper Pieces. For undated references, the latest edition (including any amendments) applies to this document. GB/T 5972 crane wire rope maintenance, maintenance, installation, examination and discard GB 6067.1-2010 crane safety regulations - Part 1. General GB/T 7024 elevators, escalators, moving walkways term GB 8903 Elevator Rope GB 8918 important use of wire rope GB 25856-2010 only freight elevator manufacturing and installation of safety norms3 Terms and DefinitionsGB/T 7024 and define the following terms and definitions apply to this document. 3.1 Easy lift simplelift In the hoisting machine, winch, electric hoist, the hydraulic pump as a drive station, through the rope, rack and pinion, chains or the like hydraulic cylinders Huoxiang driven member, in the vertical direction within a hoistway or rigid guide means operating angle of less than 15 ° inclined to the vertical direction for carrying goods only Lifting machinery. 3.1.1. Traction elevator simple tractiondrivesimplelift Rely on simple friction driven elevator. 3.1.2. Forced simple lift positivedrivesimplelift By chain, non-frictional suspension rope driving an elevator simple. 3.1.3 Simple rack and pinion lift pinion-and-racksimplelift Simple rack and pinion elevator. 3.1.4 Simple direct acting hydraulic lift direct-actinghydraulicsimplelift The hydraulic cylinder is directly connected to the cargo, the cargo elevator driven synchronously simple operation. 3.2 Cargo cage Simple elevator means for carrying cargo. 3.3 Rated weight ratedcapacity The maximum mass allowed to bear in the cargo compartment under the specified design normal operating conditions. 3.4 Rated speed ratedspeed Under the cargo compartment design speed. 3.5 Effective cargo area availablecagearea When the cargo door is closed, measured in the plane area of the load floor. 3.6 Lifting height liftingheight From the bottom end of the upper surface of the landing sill to the vertical distance between the top ridge on the surface of the end stops. 3.7 Stop protection layer parkingprotectiondevice Easy lift stop layer when loading and unloading cargo, cargo prevent the occurrence of abnormal slip, fall safety devices. 3.8 Downlink overspeed protection device descendingover-speedprotectiondevice When the cargo downward speed exceeds the rated speed a certain value, the safety device can directly cause deceleration to a stop of the cargo. 3.9 Counterweight counterweight The hoisting ropes are connected by the traction wheel through the cargo box, the device is held during the traction capacity Traction elevator simple operation. 3.10 Counterweight balancingweight Means for Ping Heng weight of the cargo compartment and arranged to save energy.4 Basic requirements4.1 Easy lift should work properly under the following conditions. a) the installation site altitude does not exceed 1000m; b) in the machine room air temperature is maintained at between 5 ℃ ~ 40 ℃; c) running the wettest place monthly average maximum relative humidity of not more than 90%, while the mean minimum temperature not higher than 25 deg.] C; Fluctuation d) relative to the rated voltage of the supply voltage within a range of ± 10%; e) the ambient air should not contain explosive gas, flammable gas, corrosive gases, combustible dust and conductive dust. Note. Out of the above range, the manufacturer and the user consultation. Simple design lifts 4.2, the following parameters should be within the range, and should be given priority traction formula. a) From the nominal weight. not more than compulsory simple lift 1500kg, other types of simple lift is not greater than 3000kg; b) the rated speed. not more than 0.3m/s; c) lifting height. not more than traction type elevator simple 20m, other forms of easy lift is not greater than 15m; d) Number of landing. Traction elevator simple no more than 6 layers, other forms of simple lift no more than 4 layers. 4.3 Easy lift and all its parts, construction (structures) should be properly designed, reasonable structure, and in accordance with the mechanical, electrical, hydraulic and construction General technical requirements, hazardous materials should not be used. 4.4 Easy lift not manned operation. 4.5 Simple elevator operating device must be provided outside the cargo compartment, not any operation button disposed within cargo compartment. 4.6 Simple lifts in automatic leveling manner, the cargo box leveling accuracy should be within the range of ± 15mm. Simple Ping Heng factor 4.7 Traction lift should be in the range of 0.4 to 0.5. 4.8 Simple direct acting hydraulic lift full, and in the top end position of the leveling station, should the cargo box from settling in 10min More than 10mm. 5 construction (structure) 5.1 hoistway 5.1.1 General requirements 5.1.1.1 Simple lift the counterweight or Ping Heng weight of the cargo box should be mounted in the same hoistway. 5.1.1.2 wells should be simple lift private, shall not be installed nothing to do with the simple lift facilities in the hoistway. If the well is set at people Members can reach the space above, the bottom surface of the hoistway pit should be at least 5000N/m2 design load, and. a) the counterweight (or counterweight) buffer attached to extend to the solid pier with the solid surface; or b) counterweight (or counterweight) mounted on a predetermined downlink comply 9.3 overspeed protection device. 5.1.2 closed hoistway 5.1.2.1 closed Simple lift wells should be non-porous walls, floor and ceiling completely closed up. Allow only. a) layer, a door opening; b) access door trapdoor opening; c) the case of fire, smoke and gas exhaust hole; d) between the hoistway and the machine room is necessary functionality opening. 5.1.2.2 access door trapdoor 5.1.2.2.1 access doors and trap doors should be non-porous, its mechanical strength is not less than the landing door. 5.1.2.2.2 access door trapdoor shall open toward the inside of the hoistway. 5.1.2.2.3 access doors, trap doors shall be fitted with a key to open the lock, when the access door and open the trapdoor, without a key can also Its close and lock. Access door locked even in case, should not use a key to open the door from inside the hoistway. 5.1.2.2.4 all access doors, the doors should be equipped with a trap electrical interlocks to ensure that only a simple lift all overhaul Doors, trap doors are closed to start. Electrical interlocks should meet the safety contacts in the form of 8.5 predetermined. 5.1.3 hoistway walls, floor and roof 5.1.3.1 hoistway structure should be able to withstand at least. a) applying a load driving apparatus; b) stop layer for protecting the load generated by the operation means; c) operation of the downlink momentary overspeed protective device via a load applied to the guide means; d) generating load operation of the buffer; e) the cargo loading and unloading load generated. 5.1.3.2 hoistway wall, floor and ceiling should be constructed of materials, non-combustible solid, this material should not itself contribute to the generation of dust, and Should have sufficient mechanical strength. with a force of 300N, acting vertically on either side in the shaft wall at any position, and uniformly distributed Circular or square area of 5cm2, shaft wall shall. a) without permanent deformation; b) no greater than the elastic deformation of 15mm. 5.1.4 headspace hoistway 5.1.4.1 headspace Traction elevator simple 5.1.4.1.1 counterweight when fully compressed in its buffer, should satisfy the following four conditions. a) the length of the cargo box guide means should provide further guidance not less than 0.1m stroke; b) the distance between the top of the cargo box stand on a plane corresponding to the top position of the shaft of not less than 1.0m; c) the free vertical distance between the lowest hoistway top member and the top member fixed to the top of the cargo apparatus is not less than 0.1M; d) above the loading space should be sufficient space, the size of the rectangular space to accommodate a 0.5m × 0.6m × 0.8m is Accurate, REN Yiping can be placed face down. 5.1.4.1.2 When the cargo is completely pressed in its buffer, the length of the counterweight guides should provide further guidance to not less than 0.1m stroke. 5.1.4.2 forced headspace simple lift 5.1.4.2.1 When the cargo is located on the limit position, should also meet the four conditions stipulated 5.1.4.1.1. 5.1.4.2.2 When the cargo is completely pressed in its buffer, counterweight (if any) should be able to provide a guide means into a length of not less than 0.1m of Step guided trip. 5.1.4.3 simple direct acting hydraulic lift headspace When the plunger reaches the extended extreme position, it should also meet the four conditions stipulated 5.1.4.1.1. Simple headspace rack gear lifts 5.1.4.4 5.1.4.4.1 When the cargo is located on the limit position, should also meet the four conditions stipulated 5.1.4.1.1. 5.1.4.4.2 When the cargo is completely pressed in its buffer, counterweight (if any) should be able to provide a guide means into a length of not less than 0.1m of Step guided trip. 5.1.5 hoistway pit facilities and pit space 5.1.5.1 pit facility 5.1.5.1.1 channel should be set a lower shaft pit, the pit should be kept clean. In addition to base and drainage means and the guide means to a buffer In addition, the bottom of the pit should be smooth, not seepage. Drainage should take measures to prevent reverse flow of water of the bottomless pit. 5.1.5.1.2 the pit should be set. a) stop means when the door is opened to the pit floor and are accessible on the pit floor, and to meet the requirements of 9.8.2; b) fixing the lighting device and the switch, power outlet independent; c) fixing the ladder is not a simple operation space protrudes elevator, except for the pit depth is not more than 1.2m. 5.1.5.2 pit space When the cargo box in its fully compressed buffer simple or direct acting hydraulic lift reaches the lowermost position of the plunger retracted, should also be filled Foot following conditions. a) the minimum distance between the bottom member and the cargo box corresponding to the vertical position of the pit not less than 0.1M; b) the pit has a sufficient space, the size of the space to accommodate a rectangular of not less than 0.5m × 0.6m × 1.0m of Prevail, REN Yiping can be placed face down. When the pit can not accommodate the rectangular space, the elevator should be provided a simple mechanical devices Position, to prevent the cargo bed person running or falling down when the pit; the mechanism should be provided with efficient electrical interlocks so It can be cut off at the simple lift of the role of electrical safety circuits. 5.2 engine room and maintenance platform 5.2.1 General requirements 5.2.1.1 Simple the elevator drive means and associated equipment should be placed on a special machine room or access platform, allowing only the room or access platform Xu personnel approved to enter. 5.2.1.2 room or maintenance platform may not be used for other purposes than the simple lift. 5.2.1.3 should provide safe passage out of the engine room personnel or maintenance platform that allows exceptional cases into the maintenance by cargo inspection window platform. 5.2.1.4 room or access to internet access channel should be set permanently electrical lighting device, in order to obtain appropriate illuminance. 5.2.1.5 room or access platform should be set. a) stop means (for internet access only), it is located near the entrance of the maintenance platform, and to meet the requirements of 9.8.2; b) fixing the lighting device and the switch, power outlet independent; c) fire fighting facilities (for room only). 5.2.2 engine room 5.2.2.1 room construction materials should be durable and easy to produce dust, should have a strong structure able to withstand a predetermined load, and Can adapt to all kinds of weather conditions, well ventilated. 5.2.2.2 room should be of sufficient size to ensure the safety of personnel and related equipment for convenient operation, especially for electrical equipment operation. 5.2.2.3 windows and doors should be weather-proof room, computer room door should be locked. 5.2.2.4 hole size on the room floor, under the conditions of use should be minimized to meet. To prevent the object through the opening located above the hoistway Mouth, including the risk of falling through the openings of the cable should be used rims, the rims projecting surface should at least 50mm. 5.2.3 Maintenance Platform 5.2.3.1 When the drive means provided in the pit area, the pit floor as to allow the access platform, and in a suitable service position a mechanical When the apparatus should be provided with efficient mechanical electrical interlocks so that it can in effect; means to prevent personnel in the pit when the cargo run or fall Easy lift off electrical safety circuits. 5.2.3.2 When the drive means is provided in the shaft head, the top of the cargo as to allow access platform and in a suitable service position a mechanical means Is set to prevent the cargo bed when run or fall down on top of the cargo inspection personnel; the mechanism should be provided with efficient electrical interlocks so It can be cut off at the simple lift of the role of electrical safety circuits. 5.2.3.3 When the shaft ceiling provided with a dedicated access platform, the access door should be provided in line with the provisions of 5.1.2.2. Maintenance platform will be set up To fence. Metal structure 6 6.1 cargo 6.1.1 cargo structure 6.1.1.1 lifts the cargo should be simple rigid structure, in addition to the cargo door, and the necessary maintenance window vent, the other surface of the cargo to be Closed. Cargo must not take the form of a tablet, and other platforms. 6.1.1.2 When the cargo into the maintenance need information from the internet, is provided on the cargo box size should be no less than 0.5m × 0.35m, and the electrical interlock with Maintenance window arrangement. 6.1.1.3 should be installed at least two pairs of guide shoes or guide wheels, guide rollers or guide shoes should be reliable and easy to replace fixed. 6.1.1.4 cargo box walls, roof and the cargo bed, and cargo box structure should have sufficient mechanical strength to withstand normal elevator simple When running, the cargo or impinges on the buffer, or when a load acts downward overspeed protection layer for protecting the device and stop devices. 6.1.1.5 When the top outside edge of the cargo from the hoistway wall free distance exceeds 300mm, the height of the top of the cargo should be added not less than 700mm, an interval of not more than 350mm, a height of not less than a lower skirting board fence of 100mm. 6.1.2 cargo area and the maximum effective nominal weight relationship Cargo area and the maximum effective rated lifting relations to comply with Table 1. Not clear from the simple to the nominal weight of the lifts, Its rated capacity in accordance with Table 1, the maximum effective area of the cargo corresponding to the rated capacity is determined. Table 1 cargo area and the maximum effective nominal weight relationship Rated weight kg Cargo largest effective area m2 Rated weight kg Cargo largest effective area m2 ≤200 1.00 1000 3.60 300 1.35 1200 4.20 400 1.76 5.10 1500 500 2.10 1600 5.35 600 2.40 1800 5.82 700 2.70 6.30 2000 800 3.00 2500 7.50 900 3.30 3000 8.70 NOTE. the intermediate area of its starting weight determined by a linear interpolation. 6.1.3 cargo height Huoxiang clear height of not less than 1800mm. 6.1.4 cargo entrance 6.1.4.1 General requirements 6.1.4.1.1 inlet cargo box should be installed horizontally slidable nonporous cargo compartment door. 6.1.4.1.2 rear cargo compartment door is closed, a gap between the door leaf and the door and between the posts, lintels and sills not greater than 10mm. 6.1.4.1.3 cargo compartment door interlocks should be provided electrically, in the case of normal operation, if there is a plurality of the cargo door or door leaf cargo compartment Any one of the doors open, the cargo should not start or continue to run. 6.1.4.1.4 cargo compartment door of an electrical interlock device should meet the safety contacts in the form of 8.5 predetermined. 6.1.4.1.5 should be installed on the cargo bed apron sill, apron vertical height of not less than 300mm, a width not less than the respective landing Clear width of the opening. 6.1.4.2 cargo box with the cargo box facing the inlet shaft wall spacing The cargo door respective door-side layer is not provided if the elevator stops at the landing summary is turned on, this cargo compartment door sill, sliding door or frame Recent work with the relevant edge of the door facing the landing surface of the inner shaft within the range of vertical landing door unlocking zone should not exceed 0.15m. If a boss provided on the surface within the hoistway method to meet this requirement, the effective width of the projection is not less than the cargo door guard width Degrees, plus 0.10 M each side, and the boss surfaces c......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB 28755-2012_English be delivered?Answer: Upon your order, we will start to translate GB 28755-2012_English as soon as possible, and keep you informed of the progress. The lead time is typically 2 ~ 4 working days. The lengthier the document the longer the lead time.Question 2: Can I share the purchased PDF of GB 28755-2012_English with my colleagues?Answer: Yes. The purchased PDF of GB 28755-2012_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.Question 3: Does the price include tax/VAT?Answer: Yes. 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