BS 4465:1989
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
Specification for design and construction of electric hoists for both passengers and materials
Hardcopy , PDF
30-06-2014
English
31-01-1990
Foreword
Committees responsible
Specification
Section one. General
1. Scope
2. Definitions
3. Design considerations
Section two. Structural design and construction
4. Loads and load combinations
5. Selection of steel, minimum thickness and working
stresses
6. Stresses in structural components
7. Basic stresses in connections
8. Proportions of structural components, plates and
web stiffeners
9. Fluctuating loads: permissible fatigue stresses
Section three: Mechanical design and construction
10. Hoist cage and enclosure
11. Hoistway enclosure and gates
12. Interlocking of gates
13. Rope suspension
14. Rack and pinion suspension system
15. Driving machinery
16. Brake
17. Counterweights
18. Safety gear
19. Overspeed governors
20. Buffers
21. Hoist cage overrun
22. Safety switches
23. Guarding
24. Notices
Section four. Electrical design and construction
25. Mains supply isolating switch
26. Cables and wiring
27. Protection against the effects of external
influences
28. Earthing
29. Control circuits, panels, equipment and systems
30. Suppression of radio and television interference
Section five. Testing
31. General
Section six. Instruction manual
32. General
Appendices
A. Legislation and related documents
B. Text deleted
C. Derivation of design wind pressures
D. The use of steels of higher tensile strengths than
those of steels complying with BS 4360
E. Basic formula for calculation of Cs
F Text deleted
G. Certificate of type test for safety gear
Tables
1. List of loads
2. Load combinations
3. Impact factors
4. Design wind pressures
5. Force coefficients Cf
6. Shielding factors phi
7. Basic stresses in structural members
8. Values of Robertson constant alpha for struts of
various sections
9. Values of F crip for steels complying with BS 4360
10. Values of K1
11. Values of K2
12. Values of A and B to be used for calculating
values of Cs
13. Basic stress Pbc,bas for different values of
critical stress Cs
14. Basic average shear stress Pq,bas in stiffened
webs of steel complying with BS 4360
15. Basic stresses in welds
16. Basic stresses in rivets as a percentage of YR0.2
17. Effective lengths of parts in compression
18. Effective length with no lateral bracing
19. Maximum width of plates in compression
20. Projection of unstiffened compression flange plates
21. Values of P for fluctuating stresses for various
classes of constructional details
22. Size of perforation or opening in cage enclosure
related to clearance
23. Clearance between turns of rope on helically
grooved drums
24. Type of safety gear for counterweights
25. Governor tripping speeds
Figures
1. Conversion chart for wind speed and pressure
2. Definitions: aerodynamic slenderness, section
ratio, solidity ratio and spacing ratio
3. Design throat thickness of fillet welds
4. Design throat thickness of deep-penetration fillet
welds
5. Effective length with lateral bracing
6. Typical class E weld details
7. Typical class F weld details
8. Typical class F and class G weld details
9. Typical class G weld details
10. Angle of fleet
Index
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