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ASME A17.5 2014

ASME A17.5 2014

$98.04

ASME A17.5 Elevator and Escalator Electrical Equipment

Published By Publication Date Number of Pages
ASME 2014 89
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ASME A17.5 applies to the electrical equipment for elevators, escalators, moving walks, dumbwaiters, material lifts, and elevating devices for persons with physical disabilities (platform lifts and stairway chairlifts): • motor controllers; • motion controllers; • operation controllers; • operating devices; and • all other electrical equipment not listed/certified and labeled/marked according to another product safety standard or code. The equipment specified in this Safety Standard is intended for installation in accordance with the Canadian Electrical Code, Part 1 (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. ASME has been defining safety in elevators, escalators and related equipment since 1921. ASME A17.5 is harmonized with CSA B44.1 to provide one comprehensive solution for jurisdictions throughout North America. This Safety Standard is to be used in conjunction with other volumes of ASME’s A17 series of safety standards. Careful application of these A17 safety standards will help users to comply with applicable regulations within their jurisdictions, while achieving the operational and safety benefits to be gained from the many industry best-practices detailed within these volumes. Intended for anyone involved with the safety of elevators, escalators and related conveyances.

PDF Catalog

PDF Pages PDF Title
3 ERRATA
5 Standards Update Service
9 Contents
12 CSA Technical Committee on the Elevator Safety Code
15 ASME A17 Elevator and Escalator Standards Committee
17 CSA B44.1/ASME A17.5 Joint Committee on Elevator and Escalator Electrical Equipment
19 Preface
21 1 Scope
22 2 Reference publications, abbreviations, and definitions
2.1 Reference publications
24 2.2 Abbreviations
2.3 Definitions
27 3 Construction
4 Enclosure construction
4.1 General
4.2 Thickness of cast-metal enclosures for live parts
28 4.3 Thickness of sheet-metal enclosures for live parts
5 Doors and covers
29 6 Polymeric enclosures
31 7 Openings in enclosures
7.1 Requirements for all enclosures
32 7.2 Requirements for equipment enclosures marked in accordance with Clause 20.22
8 Wire-bending space
33 9 Enclosures with environmental ratings
10 Protection against corrosion
11 Insulating material
12 Protective devices
12.1 Overcurrent protection
12.2 Number, arrangement, and ratings or settings of protective devices
34 12.3 Supplementary overcurrent protection
12.4 Disconnecting means
36 12.5 Power from more than one source
13 Protection of control circuits
13.1 Control circuit conductor protection
13.2 Control circuit transformer protection
37 13.3 Use of supplementary protectors in control circuits
38 14 Internal wiring
15 Wiring terminals and leads
40 16 Electrical spacings
44 17 Grounding
45 18 Printed circuit boards
19 Tests
19.1 General
46 19.2 Endurance
19.3 Solid-state ac motor controller tests
48 19.4 Power-conversion equipment
51 19.5 Impact test
19.6 Printed circuit board coatings
52 19.7 Transient-voltage-surge suppression
19.8 Compression
19.9 Deflection
53 19.10 Cord pullout
19.11 Crushing resistance test
20 Marking
59 Tables

Table 1 Thickness of sheet metal for enclosures — Carbon steel or stainless steel
60 Table 2 Thickness of sheet metal for enclosures — Aluminum, copper, or brass
61 Table 3 Size of bonding conductor
Table 4 Minimum acceptable distance from an opening to a part that can involve a risk of electric shock or injury to persons
62 Table 5 Minimum spacings for live parts
63 Table 6 Wire-bending space at the terminal of enclosed motor controllers
Table 7 Maximum acceptable rating of overcurrent device
64 Table 8 Allowable ampacities of insulated copper conductors inside elevator electrical equipment enclosures (based on a maximum room ambient temperature of 40 °C)
Table 9 Ampacity correction factors for multiple conductor groupings
65 Table 10 Full-load motor-running currents in amperescorresponding to various ac horsepower ratings
67 Table 11 Full-load motor-running currents in amperes correspondingto various dc horsepower ratings
68 Table 12 Minimum conductor spacings for printed circuit boards*
69 Table 13 Minimum acceptable spacings for equipment for which transient voltages are known and controlled
70 Table 14 Dimensions of bushings
Table 15 Size and number of conductors per grounding termination
71 Table 16 Size of grounding conductors
72 Table 17 Sequence of tests for solid-state ac motor controllers
73 Table 18 Maximum permissible temperature rises
75 Table 19 Sequence of tests for power-conversion equipment
76 Table 20 Rating codes for ac control circuit contacts at 50 and 60 Hz
77 Table 21 Rating codes for dc control circuit contacts
78 Figures
Figure 1 Articulated probe
79 Figure 2 Location of applicators for crushing resistance test
80 Annex A (informative)
86 Annex B (informative)

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ASME A17.5 2014
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