GB 10055-2007Safety code for builder's hoist (English PDF)

3 Complete machine

4 Foundation

5 Landings

6 Cage

7 Counterweight and its guide rails

8 Wire ropes and pulleys

9 Drive system

10 Guide and buffer devices

11 Safety devices

12 Attachment of the mast

13 Electrical system

Foreword

Clauses 3.2, 8.2.8, 9.2.1 and 9.3.6 a) of this standard are recommended; the remainder are mandatory.

This standard replaces GB 10055-1996, Safety rules for builder's hoists.

Compared with GB 10055-1996, the main changes are as follows:

- the title of the standard has been changed to "Safety code for builder's hoist";

- the installation verticality deviation of the axis of the hoist mast relative to the horizontal reference plane of the base has been added;

- a requirement has been added that mast sections with different chord tube wall thicknesses shall be marked;

- a requirement has been added that a mast section shall be scrapped or downgraded when the wall thickness of its chord tubes is reduced by corrosion or wear;

- buffers have been made compulsory on passenger-and-goods hoists and on goods hoists of 400 kg and above;

- the travel speed of the cage during erection, dismantling and maintenance has been specified;

- requirements on the mesh openings and opening sizes of woven-mesh enclosures and doors have been added;

- the requirements on the clear height of landing doors have been divided into full-height landing doors and reduced-height landing doors;

- a requirement has been added that hoists with a rated lifting speed above 0.7 m/s shall be fitted with a slow-down switch;

- the requirements on the method of connecting wire ropes have been deleted, and requirements have been added on the terminations or fittings used when a reserve length of wire rope is stored.

This standard was proposed by the China Machinery Industry Federation.

This standard is under the jurisdiction of the Beijing Research Institute of Construction Mechanization.

Drafting organisations: Construction Mechanization Research Branch of the China Academy of Building Research, Beijing Research Institute of Construction Mechanization, Langfang Kaibo Construction Machinery Technology Co., Ltd.

Main drafters: Wang Donghong, Li Shoulin, Li Jing, Li Xiuhui, Zhang Meijia.

Previous editions of the standard replaced by this standard:

- GB 10055-1988, GB 10055-1996.