1、C22.2 No. 140.2-96(reaffirmed 2011)Hermetic refrigerant motor-compressorsBlank pageUpdate No. 3C22.2 No. 140.2-96October 2006Note: General Instructions for CSA Standards are now called Updates. Please contact CSA Information Products Sales or visit www.ShopCSA.ca for information about the CSA Standa
2、rds Update Service.Title: Hermetic Refrigerant Motor-Compressors originally published May 1996Revisions issued: Update No. 2 April 2005 If you are missing any updates, please contact CSA Information Products Sales or visit www.ShopCSA.ca.The following revisions have been formally approved and are ma
3、rked by the symbol delta () in the margin on the attached replacement pages:CSA C22.2 No. 140.2-96 originally consisted of 62 pages, each dated May 1996. It now consists of the following pages dated to correspond to ULs Standard, including any replacement pages:Update your copy by inserting these re
4、vised pages.Keep the pages you remove for reference.Revised Title page and Clause 34.3New NoneDeleted NoneMay 1996 5, 6, 840, 43, 45, and 4962April 2005 Copyright page, 3, 4, 7, 44, and 4648September 2005 Title page, 41, and 42Canadian Standards AssociationC22.2 No. 140.2-96Fourth EditionUnderwriter
5、s Laboratories Inc.UL 984Seventh EditionHermetic Refrigerant Motor-CompressorsMay 31, 1996(Title page reprinted: September 23, 2005) Commitment for AmendmentsThis Standard is issued jointly by Canadian Standards Association and Underwriters Laboratories Inc. Amendments to this Standard will be made
6、only after processing according to the Standards writing procedures by both Canadian Standards Association and Underwriters Laboratories Inc.The Department of Defense (DoD) has adopted UL 984 on January 13, 1992. The publication of revised pages or a new edition of this Standard will not invalidate
7、the DoD adoption.ISSN 0317-5669Copyright 1996 Canadian Standards AssociationAll rights reserved. No part of this publication may be reproduced in any form whatsoever without the prior permission of the publisher.ISBN 1-55989-983-2Copyright 1996, 2005 Underwriters Laboratories Inc.September 23, 2005
8、CSA C22.2 No. 140.2 UL 984 4133 Vibration test33.1 If routing or protection of wiring or both, as required by Clauses 12.3 to 12.5, cannot be determined by visual examination, the motor-compressor shall be subjected to a Vibration Test. Following vibration, the wiring or its supplementary protection
9、, either of which is subject to possible damage, shall withstand, for 1 minute without breakdown, the application of a 60 Hz potential of 2500 V.33.2 The motor-compressor sample shall be representative of production assemblies and may include an oil charge if one is provided at the time the motor-co
10、mpressor leaves the manufacturers plant. The test sample shall be provided with openings that allow observation and adjustment of the wiring, or its supplementary protection or both, during the vibration period. The sample shall be mounted on a base that will maintain the motor-compressor in its int
11、ended up-right position. Except that electrical connections are to remain intact, the wiring or its supplementary protection or both shall be arranged, as permitted by the design, so that it bears against any surface, edge, or part that it is likely to contact and thus cause abrasion. The wiring sha
12、ll be allowed to move to its natural position during vibration.33.3 The test apparatus shall consist of a vibration table that provides synchronous motion with a total displacement of 25.4 mm (1 in). This motion is to be circular in the vertical plane with the table level at all times. The test samp
13、le shall be positioned on the table but not secured in place except that it may be loosely restrained to limit the area of travel. The speed of the apparatus shall be adjusted so that the vibration frequency generates 1.6 mm (1/16 in) vertical displacement of the motor-compressor from the table.33.4
14、 During the test, the motor-compressor shall be rotated 90 from a previous position so that four positions of the sample are subjected to vibration, each for a period of 105 minutes. At each change of position, wiring or its supplementary protection shall be arranged in accordance with Clause 33.2,
15、if necessary, and the speed of the test apparatus adjusted so that the motor-compressor is displaced as indicated in Clause 33.3. If, during the test, any internal springs or tubes break or come loose, the test shall be discontinued and a new sample tested.33.5 After completion of vibration, dielect
16、ric voltage shall be applied in accordance with Clause 33.1 at points of possible abrasion. For wiring, the conductor and metal foil wrapped around the insulation surface are to be used as electrodes. For supplementary protection, such as sleeving, the electrodes are to consist of a conductor(s) ins
17、erted into the protective means and metal foil wrapped around its outer surface.34 Motor-compressor enclosure strength test34.1 Parts of a motor-compressor enclosure that are exposed to low-side or high-side pressure shall withstand, without leakage or rupture, a pressure equal toa) five times the m
18、inimum design pressure for the refrigerant as shown in Table 45.1; or b) five times the design pressure assigned to the assembly, whichever is greater.34.2 A motor-compressor employing a bypass valve that relieves high-side pressure into the low-side at a predetermined pressure differential may requ
19、ire the enclosure to be tested at a higher pressure. The test shall be conducted at a value of three times the pressure developed while the valve is relieving.34.3 Two samples of the enclosure shall be tested to determine compliance with the requirements of Clauses 34.1 and 34.2. The test medium sha
20、ll be any inert liquid, such as water. The test samples shall be filled with the test medium to exclude air and shall be connected in a hydraulic pump system. The pressure shall be increased gradually until the required maximum pressure is attained. This pressure shall be maintained for 1 minute, du
21、ring which time the sample shall not burst or leak.42 CSA C22.2 No. 140.2 UL 984 September 23, 2005Exception No 1: If gaskets or seals are employed in enclosures of motor-compressors designed for use in systems intended only for use with refrigerants classified in accordance with the Standard for th
22、e Designation and Safety Classification of Refrigerants, ANSI/ASHRAE 34, as A1 or A1/A1, leakage at a gasket or seal is acceptable, provided that the leakage occurs at a pressure greater than 40 per cent of the required test pressure. The motor-compressor enclosure shall withstand the required test
23、pressure even though leakage occurs at gaskets or seals.Exception No. 2: If a rupture member is employed as an integral part of a motor-compressor enclosure intended only for use with refrigerants classified in accordance with the Standard for the Designation and Safety Classification of Refrigerant
24、s, ANSI/ASHRAE 34, as A1 or A1/A1, the rupture member may open, provided that it occurs at a pressure greater than 40 per cent of the required test pressure. The motor-compressor enclosure shall withstand the required test pressure even though the rupture member opens. If necessary, samples for use
25、during the full required pressure test shall be prepared without the rupture member employed, so that the full required test pressure can be applied to the remainder of the compressor enclosure.34.4 Leakage, as referenced in Clauses 34.1 and 34.3, is to be determined visually; such as, by examinatio
26、n of the sample for release of the test medium, or by a decreasing hydrostatic gauge pressure.35 Motor protective device strength test35.1 A motor protective device located within the motor-compressor enclosure shall withstand an external pressure equal to that applied to the motor-compressor enclos
27、ure as specified in the Motor- Compressor Enclosure Strength Test, Section 34, withouta) cracking, collapsing, bending, warping, or otherwise distorting the protective device housing, as determined by visual examination;b) short-circuiting of the housing to internal current-carrying parts of the pro
28、tective device; and c) affecting electrical continuity between terminals of the protective device.Exception: The pressure applied to a motor-protective device that is located within the motor-compressor enclosure may be 60 per cent of that applied to the motor-compressor enclosure, provided thata) a
29、s determined by visual examination, the pressure does not cause structural damage to the device that would decrease the required electrical spacings, affect the operation of the switching mechanism, or affect the integrity of the assembly; andb) the device complies with the requirements of the Calib
30、ration Check Test Motor Protective Device, Section 36.35.2 Two samples of the motor protective device are to be tested. The test medium shall be any nonhazardous liquid, such as water. The test samples shall be placed in a container filled with the test medium to exclude air. The container shall be
31、connected to a hydraulic system whose pressure shall be increased gradually to the required test pressure, and then maintained at that pressure for 1 minute.36 Calibration check test motor protective device36.1 Both the cutout and cutin temperatures of an internal motor protective device, measured a
32、fter the hydrostatic strength test mentioned in the exception to Clause 35.1, shall be within either 5C (9F) or 2.75 per cent of the temperatures in C, (or 5 per cent of the temperatures in F), whichever is greater, of the temperatures measured prior to the test.Update No. 2C22.2 No. 140.2-96April 2
33、005Note: General Instructions for CSA Standards are now called Updates. Please contact CSA Information Products Sales or visit www.ShopCSA.ca for information about the CSA Standards Update Service.Title: Hermetic Refrigerant Motor-Compressors originally published May 1996The following revisions have
34、 been formally approved and are marked by the symbol delta () in the margin on the attached replacement pages:CSA C22.2 No. 140.2-96 originally consisted of 62 pages, each dated May 1996. It now consists of the following pages: Update your copy by inserting these revised pages.Keep the pages you rem
35、ove for reference.Revised Title page, Copyright page, Contents, Clauses 34.2, 41.4, 41.13, 41.18, 41.20, and 41.21, and Tables 41.141.3New Clause 34.3Deleted Foreword (UL)May 1996 5, 6, 840, 43, 45, and 4962April 2005 Title page, Copyright page, 3, 4, 7, 41, 42, 44, and 4648Canadian Standards Associ
36、ationC22.2 No. 140.2-96Fourth EditionUnderwriters Laboratories Inc.UL 984Seventh EditionHermetic Refrigerant Motor-CompressorsMay 31, 1996(Title page reprinted: April 27, 2005) Commitment for AmendmentsThis Standard is issued jointly by Canadian Standards Association and Underwriters Laboratories In
37、c. Amendments to this Standard will be made only after processing according to the Standards writing procedures by both Canadian Standards Association and Underwriters Laboratories Inc.The Department of Defense (DoD) has adopted UL 984 on January 13, 1992. The publication of revised pages or a new e
38、dition of this Standard will not invalidate the DoD adoption.ISSN 0317-5669Copyright 1996 Canadian Standards AssociationAll rights reserved. No part of this publication may be reproduced in any form whatsoever without the prior permission of the publisher.ISBN 1-55989-983-2Copyright 1996, 2005 Under
39、writers Laboratories Inc.ContentsApril 2005 CSA C22.2 No. 140.2 UL 984 3Preface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5Foreword (CSA) . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
40、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Foreword (UL) Deleted1 Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 2 Definitions . . . . . . . . . . . . . . . . . . .
41、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 3 General Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10CONSTRUCTION4 Motor-Compressor Enclosures . . . . . . . . .
42、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 5 Electrical Enclosures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 6 Openings in Enclosures . . . . . . . . . . . . . . . . . .
43、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 7 Gaskets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 158 Field Wiring Supply Connections . . . . . . . . . . . . .
44、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 169 Factory Wiring Supply Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1610 Current-Carrying Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
45、. . . . . . . . . . . . . . . . . . . . . . . . . . . . 1611 Electrical Insulating Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 12 Wiring and Wiring Methods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
46、 . . . . . . . . . . . . . . . . . . . 17 13 Electrical Spacings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 14 Separation of Circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
47、. . . . . . . . . . . . . . . . . 22 15 Overheating and Overload Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 16 Short-Circuit Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
48、 . . . . . . . 2417 Capacitors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 18 Motor Controllers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
49、 . . . . . . 25 19 Electric Crankcase Heaters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 20 Off-Cycle Crankcase Heating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 21 Bonding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26MARKING22 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
