1、ANSI/BHMA A156.23-2010 Revision of BHMA A156.23-2004 AMERICAN NATIONAL STANDARD FOR ELECTROMAGNETIC LOCKS SPONSOR BUILDERS HARDWARE MANUFACTURERS ASSOCIATION, INC. Approved by the American National Standards Institute August 20, 2010 2 AMERICAN NATIONAL STANDARD An American National Standard implies
2、 a consensus 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 appro
3、ved the Standard 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 Sta
4、ndard is permitted to be revised or withdrawn at any time.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
5、current information 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 2010 by the Builders Hardware Manufacturers Association, Inc. Not to be repro
6、duced without 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 Forewo
7、rd is not 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 S
8、tandard is 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 test
9、s and where 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 inten
10、ded to obstruct 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
11、Standards 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. Ind
12、ividual manufacturers catalogs should be consulted. 4 TABLE OF CONTENTS Section Page 1. SCOPE. 5 2. DEFINITIONS. 5 3. GENERAL 6 4. TEST METHODS . 6 5. STRENGTH TESTS . 7 6. ELECTRICAL TESTS 8 7. CYCLE TEST . 9 8. FINISH TESTS 10 9. EXPLANATION OF IDENTIFYING NUMBERS . 11 10. TYPICAL ILLUSTRATIONS, A
13、ND TYPE NUMBER DESCRIPTIONS 12 APPENDIX A (NOT A PART OF ANSI/BHMA A156.23) 15 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
14、Standard are performed under laboratory conditions. In actual usage, results vary because of installation, maintenance, and environmental conditions. 2. DEFINITIONS 2.1 Electromagnetic Lock. An electrically powered lock. It locks or unlocks a door by the activation or deactivation of an electromagne
15、t coupled to an armature. 2.1.1 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 perpendicular to the face of the door, which is obtained when t
16、he contact plane between magnet and armature is parallel to the door face. 2.1.2 Shear Lock The mounting arrangement of an electromagnetic door lock whereby the attraction between electromagnet and armature moves one or the other (usually the smaller armature) not only into contact with each other b
17、ut 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 mechanical, magnetic, gravitational, or other force.
18、2.2 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. 2.3 Indoor-Only Electromagnetic locks which are not suitable for continuous exposure to an outdoor environment.
19、 2.4 Rated Voltage The voltage 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 laborato
20、ry, and be subject to a periodic 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 Stan
21、dards Institute, 11 West 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. Electromagnetic locks are not permitted on some doors within a means of egress. Consult applicable building codes
22、and ANSI/NFPA 101 Life Safety Code. 3.6 Options. When specified, electromagnetic locks shall be equipped 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 indic
23、ate locked, unlocked or open door, and magnetic holding force. When supplied they shall be subject to tests 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 lab
24、oratory, and be subject to a periodic in-plant follow-up inspection service. 3.8 Power Requirements. Electromagnetic 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 shall be sup
25、plied with a junction box in accordance with the National Electric Code ANSI/NFPA 70-2008. 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 t
26、he 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 a
27、ll 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 Appear
28、ance 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. 7 4.2.5 Operational Salt Spray Test. One lock shall be tested and failure constitutes failure of the test. This test is not applicabl
29、e to locks designated for indoor-only usage. 4.3 Test Equipment 4.3.1 The Dynamic Test 5.3 shall be performed on the Security Test Fixture, or equivalent as necessary to achieve forces higher than its normal capability ,as shown in the ASTM F 476-84 (R2002) Standard Test Methods for Security of Swin
30、ging Door Assemblies (see 5.1.1, 6.4 and 8.4 of F 476-84). Mount and locate the electromagnetic lock in accordance with Figure 1. 4.3.2 The Operational Tests and the Cycle Tests shall be performed on 3 ft x 7 ft x 1 3/4 in (915 x 2130 x 45 mm) solid wood core doors and 16 gauge (.053 min) steel fram
31、es. The doors and frames shall 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. 4.3.3 The Strength Test 5.1, shall be conducted using a tension loadi
32、ng device where the load is applied 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. 4.3.4 Measuring equipm
33、ent shall consist of commercial 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 0.0
34、05 in. (0.13 mm) to obtain test data as specified. 5. STRENGTH TESTS 5.1 Strength Test Prepare the test specimen in accordance with 4.3.3. Energize the lock for 15 minutes at room temperature at its rated voltage + 2%. At a rate not slower than a 10 lbf (44 N) nor faster than a 20 lbf (90 N) per sec
35、ond, apply tension until the mechanism fully releases. The reading immediately prior to separation shall determine the holding force designation of the lock as specified. Requirements as specified in 5.7. 5.2 Preloaded Door Test (Warped Door) Energize the test specimen at 125% rated voltage. Place a
36、 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. Denergize the test specimen. The door shall swing open within one second when de-energized. 5.3 Dynamic Test
37、. 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 21.1 and 21.2 of ASTM F 476-84 (R2002). See Figure 1. Requirements as specified in 5.7 5.4 Under Voltage Test. The lock shall operate as
38、 intended while energized at 85% of its rated voltage. The holding force shall not be less than that given in requirements as specified in 5.7. 8 5.5 Operational Salt Spray Test (Does not apply to Indoor-only) This test shall be conducted in accordance with ANSI/BHMA A156.18-2006 for Materials and F
39、inishes. 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 allow to dry for 24 hours. The lock shall then operate at 85% of its rated holding force as specified in 5.7. 5.
40、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 strength test at its ranking at the rated voltage for the tested lock. Remove from the chamber, apply power and te
41、st within 10 minutes. Requirements as specified in 5.7. High - 0F/C Low - 0F/C Indoor-Only 120/49 32/0 All others 151/66 -31/-35 5.7 Requirements (All Grades) Holding Force lbf. (N) Dynamic Test Joules (5 blows) Under Voltage Operational Salt Spray Ambient Temp Test 500 45 425 lbf (2224 N) 425 lbf 5
42、00 1000 68 850 lbf (3780 N) 850 lbf 1000 1500 95 1275lbf(5670 N) 1275lbf 1500 2000 and above in 500 lb. increments only Holding Force times .07 Holding Force times .85 Holding Force times .85 Holding Force times 1.0 6. ELECTRICAL TESTS 6.1 Residual Magnetism Test. Disconnect the door closer and powe
43、r the test lock for 24 hours. Then disconnect the power and immediately apply an opening force to the door 30 in (762 mm) from the pivot center and 40 in (1016 mm) from the bottom of the door. The force required to open the door (separate the door from the magnet) shall not exceed the value given be
44、low: Requirement: Within one second: 4 lbf (18 N) 6.2 Over Voltage Test. The lock shall withstand over voltage requirement below continuously for 24 hours without damage to the coil. Requirement: 125% of Rated Voltage 9 6.3 Inductive Kickback Test. Connect the lock through a switch to a power supply
45、 of the rated voltage as shown in Figure 3. If designed to operate at more than one voltage, the test lock shall be configured for the highest operating voltage. Use a storage oscilloscope with a minimum singleshot bandwidth of 200 megahertz with a ten mega-ohm probe set to trigger on the falling ed
46、ge of the supply voltage. Open the switch and record the captured trace. Peak voltage shall not exceed the value below. Requirement: Peak voltage not to exceed 53 volts 6.4 Dielectric Voltage Withstand Test. The lock shall meet the requirement below after the application for one minute of a 40-70 Hz
47、 alternating potential as follows: (1) between all live parts and enclosures, and (2) between live parts of circuits operating at different potentials or at different frequencies. The electrical connection between circuits shall be disconnected before application of the test potential. The test pote
48、ntial shall be 500 volts for circuits operating at 30 VAC or VDC or lower and 1000 volts plus twice the rated voltage for circuits operating at higher voltage instantly applied and sustained for one minute. Requirement: No Breakdown 6.5 Temperature Rise Test shall be conducted in accordance with UL
49、1034 - 2000, Section 41. Requirement: 70o F + 5 to 160o F maximum (21o C + 2 to 71o C maximum) at steady state temperature. 7. CYCLE TEST 7.1 Using the test equipment described in 4.3.2, apply a horizontal 15 lbf (67 N) 30 in (762 mm) from the pivot center and 40 in (1016 mm) from the bottom of the door in the direction of door swing. De-energize the lock and open the door. Allow the door closer to cause the door to close and then re-energize the lock. Repeat this cycle until the number of cycles specified have been completed. Cycles per minute shall
