Page 213 - Industrial Power Engineering and Applications Handbook

Special-purpose motors 7/193

IEC Title IS BS IS0
60079- 15/1987 Electrical apparatus with type of protection ‘N’ 9628/1988 BS 6941/1988
8289/199 1 BS 5000-16/1997
60079-1711996 Inspection and maintenance of electrical installations in BS EN 60079-17/1997
hazardous areas (other than mines)
60079- 19/1993 Repair and overhaul for apparatus used in explosive
atmospheres (other than mines or explosives)
6OO79-20/1996 Data for flammable gases and vapours for electrical
apparatus
603 17(0-47) Requirements and dimensions for round copper wire BS EN 60317 (0-47)
6085 111996 Winding wires for submersible motors 8783/1995 BS EN 60851/1998
Textile motors: Part 1 Loom motors 2972-1 1990 -
Textile motors: Part 2 Card motors 2972-11 1990
Textile motors: Part 3 Spinning frame motors 2972-Ili 1990
Motors for submersible pump sets 9283/1995
Submersible pump sets 8034/1989
Specification for general purpose electrical power 950711995
driven winches for lifting and hauling
Code of practice for safe use of cranes 3177/1990 BS 574411979
Specification for power driven overhead travelling 4137/1995 BS 466/1984 4301-1
cranes, semi-goliath and goliath cranes for general use 8306
Specification for power-driven mobile cranes 457311990 BS 175711986
Specification for electrically driven jib cranes mounted 459411995 BS 2452/1954
on a high pedestal or portal carriage
Specification for high voltage busbars and busbar 808411992 BS 159/1992
connections
Related US standards ANSI/NEMA and IEEE

NEMA/MG 111993 Motors and generators ratings, construction, testing and performance
NEMA/MG 2/1989 Safety Standards (enclosures) for construction and guide for selection, installation and use of rotating machines
NEMAiMG 3/1990 Sound level prediction for insulated rotating electrical machines
NEMA/MG 1011994 Energy management guide for selection and use of three phase motors
NEMA/C50.41/1982 Polyphase induction motors for power generating stations

Notes
1 In the tables of relevant Standards in this book while the latest editions of the standards are provided, it is possible that revised editions
have become available. With the advances of technology and/or its application, the updating of standards is a continuous process by
different standards organizations. It is therefore advisable that for more authentic references, readers should consult the relevant
organizations for the latest version of a standard.
2 Some of the BS or IS standards mentioned against IEC may not be identical.
3 The year noted against each standard may also refer to the year of its last amendment and not necessarily the year of publication.

List of formulae used V = lifting speed in mls
77 = efficiency of the mechanism
Determining the size of motor
For traverse
For lifh’ng and hoisting
p,= 1.027 . T,,; N, kW (7.2)
%=- F’V kW (7.1) 1000. q
T,,, = maximum torque
F = useful load in kgf 77 = efficiency of the whole mechanism for traversing