ASME A17.5 pdf free download

ASME A17.5 pdf free download Elevator and escalator electrical equipment
1 Scope
1.1
The requirements of this Standard apply to the following electrical equipment for elevators, escalators,moving walks, dumbwaiters, material lifts, and elevating devices for persons with physical disabilities(platform lifts and stairway chairlifts):
(a)motor controllers;
(b) motion controllers;(c)operation controllers;(d)operating devices; and
(e) all other electrical equipment not listed/certified and labelled/marked according to another product
safety standard or code.
The equipment specified in this Standard is intended for installation in accordance with the CanadianElectrical Code, Part l (CSA C22.1) and the National Electrical Code(NFPA 70), whichever is applicable.Note: Controllers, i.e., motion, motor, and operation controllers, are defined in CSA B44 and ASME A17.1.
1.2
The electrical equipment covered by this Standard is intended
(a) to be connected to supply circuits at a nominal system voltage of 600 V or less;(b)for internal voltages that are not more than 1500 V; and
(c) for use in non-hazardous locations in accordance with the rules of the applicable electrical codes,
1.3
The object of this Standard is to reduce the risk of injury to persons and damage to property from fire andelectrical shock by presenting requirements for the proper design, the good construction, and the highquality of work of the equipment listed in Clause 1.i.
1.4
This Standard does not apply to devices that are rated for connection to extra-low-voltage Class 2 supplycircuits as defined in the applicable electrical code.
Note: Extra-low-voltage circuits are circuits that have a voltage of not more than 30 V rms or 42.4 V peak.
1.5
ln CSA Standards, ” shall” is used to express a requirement, i.e, a provision that the user is obliged tosatisfy in order to comply with the standard; ” should” is used to express a recommendation or that whichis advised but not required; ” may” is used to express an option or that which is permissible within thelimits of the standard; and “can” is used to express possibility or capability.Notes accompanying clausesdo not include requirements or alternative requirements; the purpose of a note accompanying a clause isto separate from the text explanatory or informative material. Notes to tables and figures are consideredpart of the table or figure and may be written as requirements. Annexes are designated normative
(mandatory) or informative (non-mandatory) to define their application.
1.6
SI (metric) units are the primary units of measure in this Standard. The yard/pound (imperial) units in the
text have been directly (soft) converted from the SI units.
2 Reference publications and abbreviations
2.1 Reference publications
This Standard refers to the following publications, and where such reference is made, it shall be to the
edition listed below, including all amendments published thereto.
CSA (Canadian Standards Association)
B44-00
Safety Code for Elevators
C22.1 -02
Canadian Electrical Code, Part I
CAN/CSA-C22.2 No. 0-M91 (R2001 )
General Requirements — Canadian Electrical Code, Part II
C22.2 No. 0.2-93 (R1 999)
Insulation Coordination
C22.2 No. 0.4-M1 982 (R1 999)
Bonding and Grounding of Electrical Equipment (Protective Grounding)
CAN/CSA-C22.2 No. 0.1 7-00
Evaluation of Properties of Polymeric Materials
C22.2 No. 1 4-95 (R2001 )
Industrial Control Equipment
CAN/CSA-C22.2 No. 94-M91 (R2001 )
Special Purpose Enclosures
ANSI/IEEE (American National Standards Institute/Institute of Electrical and Electronics
Engineers)
IEEE-4-1 995
Standard Techniques for High-Voltage Testing
ANSI/NFPA (American National Standards Institute/National Fire Protection Association)
NFPA 70-2002
National Electrical Code
ANSI/UL (American National Standards Institute/Underwriters Laboratories Inc.)
50 (1 995)
Cabinets and Boxes
94 (1 996)
Flammability of Plastic Materials for Parts in Devices and Appliances
840 (1 994)
Standard for Safety for Insulation and Coordination Including Clearances and Creepage Distances for Electrical
Equipment
ASME (American Society of Mechanical Engineers)
A1 7.1 -2000
Safety Code for Elevators and Escalators
UL (Underwriters Laboratories Inc.)
508 (1 999)
Standard for Industrial Control Equipment
746C (2001 )
Standard for Polymeric Materials — Use in Electrical Equipment Evaluations
796 (1 999)
Standard for Printed Wiring Boards
3 Construction
3.1
Electrical components used in control equipment shall be suitable for the intended application and shall be either
(a) certified to the requirements of the pertinent standards covering such components; or
(b) specifically evaluated for the intended use.