1、A17.1 Elevators and EscalatorsINTERPRETATIONSNo. 32July 2009June 2012THE AMERICAN SOCIETY OF MECHANICAL ENGINEERSTWO PARK AVENUE O NEW YORK, NY 10016No part of this document may be reproduced in any form,in an electronic retrieval system or otherwise,without the prior written permission of the publi
2、sher.Copyright 2013 byTHE AMERICAN SOCIETY OF MECHANICAL ENGINEERSAll rights reservedPrinted in U.S.A.INTERPRETATIONS NO. 32July 2009 through June 2012INTRODUCTIONAs a service to persons who use the A17.1 Code forenforcement or as a guide, the A17 Committee rendersinterpretations of the requirements
3、 upon request. ThePreface to the Code explains the procedure forrequesting interpretations.This booklet includes the interpretations which wereissued by the A17 Committee from July 2009 throughJune 2012. Subsequent interpretations will be includedwith each new edition of the Code.APPLICABILITY OF IN
4、TERPRETATIONSEach interpretation applies to the edition and supple-mentslistedforthatinquiry.ManyoftheRulesonwhichthe interpretations have been made have been revisedin later editions or supplements. Where such revisionshave been made, the interpretations may no longer beapplicable to the revised Ru
5、le.ASMEproceduresprovideforreconsiderationoftheseinterpretations when or if additional information isavailable which might affect any interpretation. Further,persons aggrieved by any interpretation may appeal tothecognizantASMEcommitteeorsubcommittee.ASMEdoes not “approve,” “certify,“ ”rate,“ or “en
6、dorse” anyitem, construction, proprietary device, or activity.INTERPRETATIONS INDEXA subject index of interpretations is included in thisbooklet on pages 81 through 98. This index includes allinterpretations that have been issued on the A17.1 Codesince 1972.The interpretations are listed in order by
7、 the subjects(Part, Section, Rule, etc.). The ”Edition” refers to theedition or addenda of the Code on which the interpreta-tion was rendered, e.g., “85a” refers to A17.1a1985.The “Bk. No.” refers to the interpretations bookletnumber in which the interpretation was published. Theinterpretations that
8、 were issued from 1972 through 1979were published in a separate book which may be pur-chased from ASME. Subsequent interpretations wereissued in separate booklets which have accompaniedeach edition and supplement of the A17.1 Code since1981. These are listed below.Books 2 through 13 have also been c
9、ompiled in aseparate publication which may be purchased fromASME.iiiEdition orNumber Dates Interpretations Were Issued Supplement1 1972 through 1979 . . .2 June 1979 through September A17.1198119803 September 1980 through Decem- A17.1a1982ber 19814 January 1982 through December A17.1b198319825 Janua
10、ry 1983 through December A17.1198419836 January 1984 through September A17.1a198519847 October 1984 through April 1985 A17.1b19858 May 1985 through October 1985 A17.1c19869 November 1985 through April A17.1d1986198610 May 1986 through October 1986 A17.1e198711 November 1986 through April A17.1198719
11、8712 May 1987 through April 1988 A17.1a198813 May 1988 through May 1989 A17.1b198914 June 1989 through May 1990 A17.1199015 June 1990 through May 1991 A17.1a199116 June 1991 through May 1992 A17.1b199217 June 1992 through May 1993 A17.1199318 June 1993 through May 1994 A17.1a199419 June 1994 through
12、 May 1995 A17.1b199520 June 1995 through May 1996 A17.1199621 June 1996 through May 1997 A17.1a199722 June 1997 through May 1998 A17.1b199823 June 1998 through March 2000 A17.1200024 April 2000 through May 2001 A17.1a200225 June 2001 through June 2002 A17.1b200326 July 2002 through June 2003 A17.120
13、0427 July 2003 through June 2004 A17.1a200528 July 2004 through June 2006 A17.1200729 July 2006 through June 2007 A17.1a200830 July 2007 through June 2008 A17.1b200931 July 2008 through June 2009 A17.1201032 July 2009 through June 2012 A17.12013FORM AND ARRANGEMENTInquiry Number. The interpretations
14、 are listed in theorderoftheassignedserialnumbers.Thefirsttwodigitsrepresent the year in which the interpretations werereceived.Subject. The primary requirement and subject of theinterpretation is listed for each inquiry.Edition. For each interpretation, the edition andaddenda, if any, on which the
15、interpretation was ren-dered are listed.Question. The questions are taken verbatim from theoriginal inquiries except for editorial corrections neces-sary to improve clarity.ivAnswer. The answers are those approved by the A17Committee, except for editorial corrections necessary toimprove clarity.Figu
16、res. Where the original inquiry included a planor drawing that was essential for the understanding ofthe interpretation, a figure has been included.Approval Dates. The date of approval by the A17Committee is listed for each interpretation.INTERPRETATIONS NO. 32Inquiry: 05-13Subject: Requirement 8.5.
17、1, Balustrade ConstructionEdition: ASME A17.12000/CSA B44-00Question: What is meant by the term “stress limit”? Is it the breaking strength (resistance tofracture) or is it an admissible value that lies under the conventional limit of elasticity (yieldstrength, though we know that glass is brittle)?
18、Answer: The term “stress limit” indicates the breaking strength of glass.A17 Standards Committee Approval: January 26, 2011Inquiry: 07-22 (Reconsideration)Subject: Requirement 2.14.1.7.1, Railing and Equipment on Top of CarsEdition: ASME A17.12000/CSA B44-00 through addenda ASME A17.1b2003Background
19、: Requirement 2.14.1.7.1 states: “A standard railing conforming to 2.10.2 shall beprovided on the outside perimeter of the car top on all sides where the perpendicular distancebetween the edges of the car top and the adjacent hoistway enclosure exceeds 300 mm (12 in.)horizontal clearance.”Question (
20、1): Does 2.14.1.7.1 require a railing on the car top for elevators in unenclosedhoistways?Answer (1): Yes, that is the intent.Question (2): Does 2.14.1.7.1 require a railing completely around the car top when the distancefrom the car top to the hoistway enclosure exceeds 12 in. on only one side?Answ
21、er (2): No.A17 Standards Committee Approval: May 7, 2008Revised Answer (1): Yes, that is the intent. See revision to 2.14.1.7.1 below:2.14.1.7 Railing and Equipment on Top of Cars2.14.1.7.1 A standard railing conforming to 2.10.2 shall be provided on the outsideperimeter of the car top on all sides
22、where the perpendicular distance between the edgesof the car top and the adjacent hoistway enclosure exceeds 300 mm (12 in.) horizontalclearance and on sides where there is no hoistway enclosure.Answer (2): No.A17 Standards Committee Approval of Reconsideration: September 16, 2009Inquiry: 08-27Subje
23、ct: Requirement 8.7.2.27.4Edition: ASME A17.12007/CSA B44-07Question: Does replacing a motor controller with the same type of motor controller, and amotion controller with the same type of motion controller, require providing an emergency brake?Answer: No, 8.7.2.27.4 does not require compliance with
24、 2.19.A17 Standards Committee Approval: May 6, 20101INTERPRETATIONS NO. 32Inquiry: 08-31Subject: Requirements 3.19.4.7 and 8.4.11.2, Overspeed ValveEdition: ASME A17.12000/CSA B44-00Background: Prior to the ASME A17.12000/CSA B44-00 Edition, there were no requirementsfor overspeed valves in Part 3.
25、However, there were requirements in Rule 2410.6 (seismic) forsafety valves. This included requiring that the safety valve stop and hold the car with rated load.ASME A17.12000/CSA B44-00 added requirements for overspeed valves in 3.19.4.7. Also,8.4.11.2 (seismic) requires an overspeed valve to confor
26、m to 3.19.4.7.Requirement 3.19.4.7 contains requirements for the maximum deceleration rates permitted byan overspeed valve, but does not explicitly require that it stop and hold the elevator. Requirement3.19.4.7 also requires the engineering tests specified in 8.3.9, which includes a seat leakage te
27、stand a closing cycle endurance test.Question (1):(a) Is it required that an overspeed valve stop and hold the car with rated load?(b) Is it permissible for the car to lower into the pit onto the buffers within the decelerationrates permitted by 3.19.4.7?Answer (1):(a) Yes; however, after the initia
28、l stop, slight movement may occur due to cooling of thehydraulic fluid and minor leakage of the hydraulic seals.(b) Yes.Question (2): Is it permissible for an overspeed valve to reset after it trips by(a) running upward automatically to make a correction run?(b) leveling upward automatically?Answer
29、(2): This is not addressed in the Code. However, in ASME A17.12007/CSA B44-07,8.10.3.2.5(o) and 8.11.3.4.5 require manufacturers procedures to be available.A17 Standards Committee Approval: September 16, 2009Inquiry: 08-36Subject: Rule 111.12, Rule 111.5, and Requirement 2.12.5Edition: ASME A17.1-19
30、96, ASME 17.1a-1997, and ASME A17.12000/CSA B44-00, respectivelyBackground: There are conflicting interpretations in the field based on Inquiries 00-30, 06-02,06-11, and 04-43 regarding whether a door restrictor that relies on power to either restrict thecar door when the car is outside the unlockin
31、g zone and/or unrestrict the doors when the caris inside the unlocking zone is Code compliant if it is possible that the door restrictor cannotfunction if normal power is unavailable and the battery backup is dead.Question: Is a door restrictor that relies on power to either restrict the car door wh
32、en the caris outside the unlocking zone and/or unrestrict the doors when the car is inside the unlockingzone Code compliant if it is possible that the door restrictor cannot function if normal power isunavailable and the battery backup is dead?Answer: A device which was permitted to become nonfuncti
33、onal would violate the Codesee Inquiry 00-30 and Inquiry 04-43, Question (4). A device requiring maintenance to retainfunctionality would not violate the Code see Inquiry 04-43, Question (5). There is no conflictamong the answers in Inquiries 00-30, 04-43, 06-02, and 06-11.A17 Standards Committee Ap
34、proval: September 16, 20092INTERPRETATIONS NO. 32Inquiry: 08-43Subject: Requirement 8.8.1, WeldingEdition: ASME A17.12007/CSA B44-07Question (1): Does the wording in 8.8.1 (“except for tack welds. . .”) exempt the operator fromhaving any documentation regarding his/her competency to tack weld?Answer
35、 (1): Yes, only if the tack weld is later incorporated in the finished welds as requiredelsewhere in the Code by a qualified welder.Question (2): Does the wording in 8.8.1 (“except for tack welds. . .”) exempt the operator fromhaving any documentation regarding his/her competency for welding in gene
36、ral?Answer (2): No.A17 Standards Committee Approval: January 13, 2010Inquiry: 08-48Subject: Part VIIIEdition: ASME A17.1-1990Question: If an escalator was manufactured to comply with the requirements of theASME A17.1-1996, Safety Code for Elevators and Escalators, which applied at the time of manu-f
37、acture(a) are the comb-step impact devices present on the escalator required to be functionaleven if they are not required by ASME A17.1-1990, the Code adopted by the authority havingjurisdiction?(b) are the comb-step impact devices present on the escalator, but not required by theASME A17.1-1990 Co
38、de adopted by the authority having jurisdiction, required to be testedperiodically?Answer:(a) The ASME A17.1-1990 Code does not address this issue. See Section 2 of ASME A17.1-1990.(b) The ASME A17.1-1990 Code does not address this issue. See Section 2 of ASME A17.1-1990.A17 Standards Committee Appr
39、oval: September 15, 20103INTERPRETATIONS NO. 32Inquiry: 08-52Subject: Requirement 2.27.3.1.6, Fire Phase I ReturnEdition: ASME A17.12007/CSA B44-07Background: Requirement 2.27.3.1.6(a) requires that when a “FIRE RECALL” switch is in the“ON” position, all cars controlled by this switch that are trave
40、ling towards the designated levelshall continue nonstop to the designated level and power-operated doors shall open and remainopen. Requirement 2.27.3.1.6(g) requires that where elevators are provided with vertically slidingdoors, corridor “DOOR OPEN” and “DOOR CLOSE” buttons shall remain operative.
41、Question (1): Once an elevator with vertically sliding power-operated doors returns to the firerecall floor and opens its doors in accordance with 2.27.3.1.6.(a), is it permitted to close the doorsusing the corridor “DOOR CLOSE” button?Answer (1): Yes.Question (2): If the answer to Question (1) is y
42、es, are the doors then required to(a) remain closed until a “DOOR OPEN” button is actuated; or(b) automatically reopen when the corridor “DOOR CLOSE” button is released?Answer (2): If the doors are fully closed, they remain closed until a “DOOR OPEN” button ispressed. If the closing is by continuous
43、 pressure “DOOR CLOSE” button, and the doors are notfully closed when the button is released, they reopen. If the closing is by momentary pressure“DOOR CLOSE” button, and the doors are not fully closed when the button is released, theycontinue to close and then remain closed until a “DOOR OPEN” butt
44、on is pressed.A17 Standards Committee Approval: September 16, 2009Inquiry: 08-53Subject: Requirement 2.27.8, Switch KeysEdition: ASME A17.12007/CSA B44-07Question:If anexistingbuilding withexisting elevatorshasa newelevatorinstalled somewherein the building, must all existing elevators in the buildi
45、ng have their key switches (EmergencyPower, Phase I and Phase II keys) replaced to match the new keying requirements?Answer: If the new elevator is not part of a group operation with any existing elevators, thenno, those elevators are not required to be rekeyed. If the new elevator is part of a grou
46、p operationwith any existing elevators, then yes, those existing elevators must be rekeyed per 8.7.2.28.A17 Standards Committee Approval: September 16, 20094INTERPRETATIONS NO. 32Inquiry: 08-53 (Reconsideration)Subject: Requirement 2.27.8, Switch Keys, and Paragraph 3.11.3Edition: ASME A17.12007/CSA
47、 B44-07 and ASME A17.32002, respectivelyQuestion:If anexistingbuilding withexisting elevatorshasa newelevatorinstalled somewherein the building, must all existing elevators in the building have their key switches (EmergencyPower, Phase I and Phase II keys) replaced to match the new keying requiremen
48、ts?Answer: If the new elevator is not part of a group operation with any existing elevators, thenno, those elevators are not required to be rekeyed. If the new elevator is part of a group operationwith any existing elevators, then yes, those existing elevators must be rekeyed per 8.7.2.28.If ASME A1
49、7.3 has been adopted by the authority having jurisdiction, see 3.11.3.A17 Standards Committee Approval: May 6, 2010Inquiry: 09-03Subject: Requirement 2.27.2.3, Elevator Emergency Power Illuminated SignalEdition: ASME A17.12000/CSA B44-00 through ASME A17.12007/CSA B44-07Question: Is it required that the illuminated signal required in 2.27.2.3 be marked in the samesize and color as the selector switch in 2.27.2.4.1?Answer: No.A17 Standards Committee Approval: September 16, 2009Inquiry: 09-07Subject: Requirements 2.7.6.3.4 and 3.17.4.2Editi
