1、 ANSI/BHMA A156.23-2017 Revision of ANSI/BHMA A156.23-2010 STANDARD FOR ELECTROMAGNETIC LOCKS SPONSOR BUILDERS HARDWARE MANUFACTURERS ASSOCIATION, INC. Approved by the AMERICAN NATIONAL STANDARDS INSTITUTE December 29, 2017 2 AMERICAN NATIONAL STANDARD An American National Standard implies a consens
2、us of those substantially concerned with its scope and provisions. An American National Standard is intended as a guide to aid the manufacturer, the consumer and the general public. The existence of an American National Standard does not in any respect preclude anyone, whether he has approved the St
3、andard or not, from manufacturing, marketing, purchasing, or using products, processes, or procedures not conforming to the Standard. American National Standards are subject to periodic review and users are cautioned to obtain the latest editions. CAUTION NOTICE: This American National Standard is p
4、ermitted to be revised or withdrawn at any time. The procedures of the American National Standards Institute require that action be taken to reaffirm, revise, or withdraw this standard no later than five years from the date of publication. Purchasers of American National Standards receive current in
5、formation on all standards by calling or writing The American National Standards Institute. Published by BUILDERS HARDWARE MANUFACTURERS ASSOCIATION, INC. 355 Lexington Avenue, New York, New York, 10017 Copyright 2017 by the Builders Hardware Manufacturers Association, Inc. Not to be reproduced with
6、out specific authorization from BHMA Printed in the USA This Standard was developed by the Builders Hardware Manufacturers Association, Inc. It was approved by ANSI under the canvass method. BHMA was accredited on 21 March 1983 as a sponsor using the Canvass Method. 3 FOREWORD (This Foreword is not
7、a part of ANSI/BHMA A156.23) The general classification of builders hardware includes a wide variety of items which are divided into several categories. To recognize this diversity, a sectional classification system has been established. Electromagnetic locks is one such section and this Standard is
8、 the result of the collective efforts of members of the Builders Hardware Manufacturers Association, Inc. who manufacture these products. The total product standards effort is therefore, a collection of sections, each covering a specific category of items. Strength, cycle, operational tests and wher
9、e it has been necessary, material and dimensional requirements have been established to insure safety and stability to which the public is entitled. There are no restrictions on design except for those dimensional requirements imposed for the reasons given above. This Standard is not intended to obs
10、truct but rather to encourage the development of improved products, methods and materials. The BHMA recognizes that errors will be found, items will become obsolete, and new products and methods will be developed. With this in mind the Association plans to update, correct and revise these Standards
11、on a regular basis. It shall also be the responsibility of manufacturers to request such appropriate revisions. The BHMA numbers which indicate functions of electromagnetic locks do not identify size or design and are not intended to be used without necessary supplementary information. Individual ma
12、nufacturers catalogs should be consulted. 4 TABLE OF CONTENTS Section Page 1. SCOPE . 5 2. DEFINITIONS . 5 3. GENERAL 6 4. TEST METHODS . 7 5. STRENGTH TESTS . 9 6. ELECTRICAL TESTS 11 7. CYCLE TEST . 12 8. FINISH TESTS 13 9. EXPLANATION OF IDENTIFYING NUMBERS . 14 10. TYPICAL ILLUSTRATIONS, AND TYP
13、E NUMBER DESCRIPTIONS 15 APPENDIX A (NOT A PART OF ANSI/BHMA A156.23) 18 5 1. SCOPE 1.1 This Standard establishes requirements for electromagnetic locks and includes cyclical, dynamic, operational, strength and finish tests. This product is used for access control. 1.2 Tests described in this Standa
14、rd are performed under laboratory conditions. In actual usage, results vary because of installation, maintenance, and environmental conditions. 1.3 No lock can provide complete security by itself. Locks may be defeated by forcible or technical means, or evaded by entry elsewhere on the property. No
15、lock can substitute for caution, awareness of your environment, and common sense. Builders hardware is available in multiple performance grades to suit the application. In order to enhance security and reduce risk, consult a qualified locksmith or other security professional. 1.4 Grade Qualification
16、s Two classifications of tests are described in this Standard, Operational and Security. Manufacturers shall indicate the Grade level. A Grade 1 product shall meet all Grade 1 criteria, a Grade 2 product shall meet all Grade 2 criteria, and a Grade 3 product shall meet all Grade 3 criteria in each c
17、lassification. 2. DEFINITIONS 2.1 Armature A plate attracted by the energized electromagnet component of the lock and when in contact with the magnet, resistant to being separated from the magnet. Also called a strike. 2.2 Electromagnetic Lock. An electrically powered lock. It locks or unlocks a doo
18、r by the activation or deactivation of an electromagnet coupled to an armature. 2.2.1 Direct Pull The mounting arrangement of an electromagnetic door lock whereby an opening force applied to the face of the door is directly opposed by the attraction of the magnet and armature along an axis perpendic
19、ular to the face of the door, which is obtained when the contact plane between magnet and armature is parallel to the door face. 2.2.2 Shear Lock The mounting arrangement of an electromagnetic door lock whereby the attraction between electromagnet and armature moves one or the other (usually the sma
20、ller armature) not only into contact with each other but also into a position of mechanical restraint by a third member which prevents sliding separation (shear) of the magnet and armature along their contact plane. To unlock, the moving member is then retracted into its original resting position by
21、 mechanical, magnetic, gravitational, or other force. 2.3 Graded Holding Force The holding force increment shown in 5.7 as it relates to its associated BHMA grade. 2.4 Indoor-Only Electromagnetic locks which are not suitable for continuous exposure to an outdoor environment. 2.5 Rated Voltage The vo
22、ltage in which the electromagnetic lock is to be used and the same voltage in which the electromagnetic lock is tested under section 5.1 Strength Test. 6 3. GENERAL 3.1 An electromagnetic lock shall be listed or labeled by a nationally recognized independent testing laboratory, and be subject to a p
23、eriodic in-plant follow-up inspection service. 3.2 Tolerances. Where only minus tolerances are given, the dimensions are permitted to be exceeded at the option of the manufacturer. 3.3 Reference to other Standards. ANSI Standards are available from the American National Standards Institute, 11 West
24、42nd Street, New York, NY 10036 or . 3.4 Values. Required values in this Standard are given in US units. The SI (metric) equivalents are approximate. 3.5 Codes. Consult applicable building codes and ANSI/NFPA 101 Life Safety Code. 3.6 Options. When specified, electromagnetic locks shall be equipped
25、with one or more options (consult individual manufacturers catalogs). These shall consist of switches, special electronic circuits, or a combination of both that are utilized to monitor and indicate locked, unlocked or open door, and magnetic holding force. When supplied they shall be subject to tes
26、ts as required in 5. 3.7 Use on Fire Doors. Electromagnetic locks used on labeled fire door assemblies shall be listed or labeled for fire doors by a nationally recognized independent testing laboratory, and be subject to a periodic in-plant follow-up inspection service. 3.8 Power Requirements. Elec
27、tromagnetic locks shall be operated by direct (DC) or alternating (AC) current. Locks requiring power in excess of 30 VAC RMS (volts alternating current root mean square) or 42.5 VDC RMS shall be supplied with a junction box in accordance with the National Electric Code ANSI/NFPA 70-2017. 3.9 Instal
28、lation Shall be performed in accordance with the manufacturers installation instructions. 7 4. TEST METHODS 4.1 Test Specimens. Locks for testing shall be selected at random from the manufacturers finished stock. Use separate samples for each test, four total. Additional parts are also required for
29、the Appearance Finish tests as described. No sample is required for indoor-only products in the Operational Salt Spray Test, 4.2.5. 4.2 Failure Criteria 4.2.1 Cycle and Operational Tests. One lock shall be tested for all cycle and operational tests and failure of any one test constitutes failure of
30、all tests in this category. 4.2.2 Dynamic Test. One lock shall be tested for the dynamic test and separation of the armature and the lock constitutes failure of this test. 4.2.3 Strength Test. One lock shall be tested for the strength test and separation constitutes failure of this test. 4.2.4 Appea
31、rance Finish Tests. One armature and one outside lock body shall be tested for each finish being tested. Failure of any part shall constitute a failure of that finish. 4.2.5 Operational Salt Spray Test. One lock shall be tested and failure constitutes failure of the test. This test is not applicable
32、 to locks designated for indoor-only usage. 4.3 Test Equipment 4.3.1 The Operational Tests, Cycle Tests and Optional Power Consumption Test shall be performed on 3 ft x 7 ft x 1 3/4 in (915 x 2130 x 45 mm) solid wood core or steel doors and 16 gauge (.053 min) steel frames. The doors and frames shal
33、l be rigid enough to hold the lock firmly and to withstand the tests outlined. Doors shall be hung on heavy duty ball bearing hinges or pivots and shall be equipped with a size 3 hydraulic door closer. 4.3.2 The Strength Test 5.1, shall be conducted using a tension loading device where the load is a
34、pplied directly and at a rate not slower than a 10 lbf (44 N) per second nor faster than a 20 lbf (90 N) per second. Locks shall be installed in accordance with Figure 2 of this Standard and using the mounting hardware supplied by the manufacturer. 4.3.3 Measuring equipment shall consist of commerci
35、al torque meters, force meters and load dynamometers and tension loading devices capable of a combined calibration and reading accuracy within 5% to obtain test data as specified in the applicable performance tests. A linear measuring gauge accurate to reading within 0.005 in. (0.13 mm) to obtain te
36、st data as specified. 4.3.4 Required values in this Standard are given in US units. The SI (metric) equivalents are approximate. All values which do not carry specific tolerances or are not marked maximum or minimum shall have the following tolerances: Linear dimensions shall be 1/16 in (1.6 mm). Po
37、unds or pound force shall be 5%. Angular measurements shall be 4 degrees. Voltage measurements shall be 5 percent. Temperature measurements shall be 4 degrees F ( 2 degrees C). Relative humidity shall be 5 percent. 4.3.5 The Residual Magnetism Test (6.1) shall be performed using the door set-up spec
38、ified 8 in 4.3.1 and the Figure below. A power supply capable of generating 12 or 24 VDC shall be used to provide power to the test lock and the continuity circuit. A switch assembly shall be provided for interruption of the power to the lock circuit without disruption of power to the continuity cir
39、cuit. An oscilloscope shall be connected to both circuits for the purpose of monitoring the voltage level at each circuit. The oscilloscope should be set to produce waveforms of the voltage to the lock and continuity circuit simultaneously. Measurements on the oscilloscope should be taken from the t
40、railing edge of the drop in voltage on the lock circuit waveform to the trailing edge of the drop in voltage to the continuity circuit waveform. 9 5. STRENGTH TESTS 5.1 Strength Test See Figure 2. Prepare the test specimen in accordance with 4.3.2. Energize the lock for 15 minutes at room temperatur
41、e at its rated voltage + 2%. Test multiple voltage rated products at both the minimum and maximum voltage. At a rate between 10 lbf (44 N) and 20 lbf (90 N) per second, apply tension until the graded holding force is reached. The specimen passes if there is no separation. 5.2 Preloaded Door Test (Wa
42、rped Door) Energize the test specimen at 125% rated voltage per 4.3.1. Place a 50 lbf (222 N) load perpendicular to the door at a point 1 in. (25.4 mm) from the lock edge of the door and on the center line of the normal latch bolt location, in the direction of opening. De-energize the test specimen.
43、 The door shall swing open within one second when de-energized. 5.3 Dynamic Test Figure 1. Prepare the test specimen in accordance with 4.3.1. Energize the lock at its rated voltage + 2% and lock the door in the closed position. Test in accordance with 20.1 and 20.2 of ASTM F 476-14. Lock must not s
44、eparate when subjected to five impacts per the requirements specified in 5.7 . 5.4 Under Voltage Test The lock shall operate as intended while energized at 85% of its rated voltage. The graded holding force shall not be less than that as specified in 5.7. 5.5 Operational Salt Spray Test (Does not ap
45、ply to Indoor-only) This test shall be conducted in accordance with ANSI/BHMA A156.18-2016 for Materials and Finishes. The entire lock assembly shall be tested unlocked and positioned in the normal installation orientation. After 96 Hours exposure, remove the sample, wash under running water, and al
46、low to dry for 24 hours. The lock shall then operate at 85% of its rated holding force as specified in 5.7. 5.6 Ambient Temperature Test After four hours exposure to the temperatures given below without power applied during the high and low ambient temperature exposure, the lock shall meet the stren
47、gth test at its ranking at the rated voltage for the tested lock. Remove from the chamber, apply power and test within 10 minutes. The holding force shall not be less than specified in 5.7. High - 0F/C Low - 0F/C Indoor-Only 120/49 32/0 All others 151/66 -31/-35 10 5.7 Requirements (All Grades) Hold
48、ing Force - lbf (N) Grade 5.1 Strength 5.4 Under Voltage 5.5 Salt Spray 5.6 Ambient Temperature 5.3 Dynamic Test (Joules) 7.1 Cycles 3 500 (2224) 425 (1890) 425 (1890) 500 (2224) 45 1 Million 2 1000 (4448) 850 (3780) 850 (3780) 1000 (4448) 68 1 Million 1 1500 (6672) 1275 (5671) 1275 (5671) 1500 (667
49、2) 95 1 Million Specify grade 1 plus suffix 2000 and above in 500 lb. increments only Holding force times .85 Holding force times .85 Holding force times 1.0 Holding force times .07 1 Million 11 6. ELECTRICAL TESTS 6.1 Residual Magnetism Test Set-up the test according to 4.3.4 and power the test lock for 24 hours. At the end of the 24 hour period and before power to the magnet is switched off, apply a 4 lbf (18N) weight to the door at 30 in (762 mm) from the pivot center and 40 in (1016 mm) from the bottom of the door providing f
