ASME A17.5:2004 pdf free download

ASME A17.5:2004 pdf free download.Elevator and escalator electrical equipment.
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 Canadian Electrical Code, Port I (CSA C22. 1) and the National Electrical Code (NFPA 70), whichever is applicable. Note: Contro(ter5. i.e., motion, moto& and opemt ion cone roSf er. are defined in CSA 844 and ASME A 17.1.
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 and electrical shock by presenting requirements for the proper design, the good construction, and the high quality of work of the equipment listed in Clause 1.1.
1.4
This Standard does not apply to devices that are rated for connection to extralowvoltage Class 2 supply
circuits as defined in the applicable electrical code.
Note: Ext ra-Iow-vottoge cfrcuitj are cñruits that hove a voltage of not ne than 30 V rms or 42.4 V peak.
1.5
In CSA Standards, shall” is used to express a requirement, I.e., a provision that the user Is obliged to satisfy in order to comply with the standard; “should” is used to express a recommendation or that which is advised but not required; “maya’ is used to express an option or that which is permissible within the limits of the standard; and “can’ is used to express possibility or capability. Notes accompanying clauses do not include requirements or alternative requirements; the purpose of a note accompanying a clause is to separate from the text explanatory or informative material. Notes to tables and figures are considered part of the table or figure and may be written as requirements. Annexes are designated normative (mandatory) or informative (non-mandatory) to define their application.
18 Printed circuit boards
18.1
Printed circuit boards shall comply with applicable printed circuit board requirements and shall be classedv-o, V-1 , and V-2.
Note: See CAN/CS4-C22.2 No.0.17 or ANSY/UL 94 for identification of the material classifications.
18.2
Notwithstanding Clause 18.1, a printed circuit board located in low-voltage, isolated secondary,limited-energy circuits of a Class 2 transformer or in an isolated secondary circuit of a transformerhaving a maximum capacity of 100 vA need not be classed as minimum v-2 and may be classed HB.Note: See CAN/CSA-C22.2 No.0.17 or ANSI/UL 94 for identification of the material classifications.
18.3
lf a printed circuit board is intended for connection only in low-energy circuits in which there is no risk ofelectric shock or injury to persons, the acceptability of the base material may be determined based onflammability tests only.
19 Tests
19.1 General
The temperature, overload, endurance, overvoltage,undervoltage, short-circuit, calibration, and dielectricstrength tests of CSA C22.2 No.14 or UL 508 shall be conducted as necessary, as well as the applicabletests of Clauses 19.2 to 19.9 of this Standard.
19.2 Endurance
19.2.1
Electromagnetic devices (e.g,armature, across-the-line, reduced voltage) that directly control anelevator’s ac or dc drive motors shall perform acceptably when subjected to an endurance test thatinvolves making and breaking 2 times the current corresponding to the horsepower rating of the devicefor 500 000 operations.For dc-rated devices, the load shall be a non-inductive resistive load.For ac-rateddevices, the load shall have a power factor of 0.4 to 0.5. The cycle rate shall be 1 s on and 9 s off, exceptthat the number of cycles per minute may be increased at the manufacturer’s option. The endurance testshall be conducted following the overload test of Clause 19.1.
19.2.2
Notwithstanding Clause 19.2.1, a controller that has the device’s coil circuit interlocked or sequenced suchthat in normal operation the device does not make or break current shall be tested as described in Clause 19.2.1, except the test current shall only be applied during the last 5 operations.
19.2.3
Notwithstanding Clauses 19.2.1 and 19.2.2, electromagnetic devices used in elevating devices for peoplewith physical disabilities (platform lifts and stairway chairlifts) shall perform acceptably when subjected tothe applicable endurance test of CSA C22.2 No.14 or uL 508.