1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULNational Differences ForUL 60335-2-34Safety of Household and Similar Electrical Appliances, Part 2-34: Particular Requirements forMotor-CompressorsUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTH
2、ER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULNational Differences ForUL 60335-2-34Safety of Household and Similar Electrical Appliances, Part 2-34: Particular Requirements for Motor-CompressorsEdition: 5Edition Date: March 22, 2013The following is the Fifth Edition of UL 60335-2-34, the
3、common ANCE, CSA Group, and UL(trinational) standard that is an adoption of IEC 60335-2-34, Safety Standard for of Householdand Similar Electrical Appliances, Part 2: Particular Requirements for Motor-Compressors (IEC60335-2-34, Edition 4.2:2008 Edition 4:2002 consolidated with amendment 1:2004 anda
4、mendment 2:2008). Please note that the national difference document incorporates all of theU.S. national differences for UL 60335-2-34.This document provides a single listing of the National Differences included in the UL adoption ofthe corresponding IEC standard.All rights reserved. No part of this
5、 publication may be reproduced, stored in a retrieval system, ortransmitted in any form by any means, electronic, mechanical photocopying, recording, or otherwisewithout prior permission of UL.UL provides this standards document as is without warranty of any kind, either expressed or implied,includi
6、ng but not limited to, the implied warranties of merchantability or fitness for any purpose.In no event will UL be liable for any special, incidental, consequential, indirect or similar damages,including loss of profits, lost savings, loss of data, or any other damages arising out of the use of or t
7、heinability to use this standards document, even if UL or an authorized UL representative has been advisedof the possibility of such damage. In no event shall ULs liability for any damage ever exceed the pricepaid for this standards document, regardless of the form of the claim.Users of the electron
8、ic versions of ULs Standards for Safety agree to defend, indemnify, and hold ULharmless from and against any loss, expense, liability, damage, claim, or judgment (including reasonableattorneys fees) resulting from any error or deviation introduced while purchaser is storing an electronicStandard on
9、the purchasers computer system.Copyright Underwriters Laboratories Inc.MARCH 22, 2013NATIONAL DIFFERENCES FOR UL UL 60335-2-342UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULPrefaceThis document provides a single listing of the technical Nati
10、onal Differences included in the UL adoptionof the corresponding IEC standard.In its IEC-based standards, UL uses the notations indicated below to identify national difference type, andthese types are additionally noted in this document. The standard may not use all types of thesedeviations.D1 - The
11、se are deviations which are based on basic safety principles and requirements, elimination ofwhich would compromise safety for U.S. consumers and users of products.D2 - These are deviations based on safety practices. These are deviations for IEC requirements that maybe acceptable, but adopting the I
12、EC requirements would require considerable retesting or redesign on themanufacturers part.DC - These are deviations based on the component standards and will not be deleted until a particularcomponent standard is harmonized with the IEC component standard.DE - These are deviations based on editorial
13、 comments or corrections.DR - These are deviations based on the national regulatory requirements.Each national difference contains a description of what the national difference entails. Typically one of thefollowing words is used to explain how the text of the national difference is to be applied to
14、 the base IECtext:Addition / Add - An addition entails adding a complete new numbered clause, subclause, table,figure, or annex. Addition is not meant to include adding select words to the base IEC text.Deletion / Delete - A deletion entails complete deletion of an entire numbered clause, subclause,
15、table, figure, or annex without any replacement text.Modification / Modify - A modification is an altering of the existing base IEC text such as theaddition, replacement or deletion of certain words or the replacement of an entire clause,subclause, table, figure, or annex of the base IEC text.MARCH
16、22, 2013 NATIONAL DIFFERENCES FOR UL UL 60335-2-34 3UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULNational Differences1DV.1 D2 Modification to replace the second sentence of the second paragraph inClause 1 with the following:It applies to mo
17、tor-compressors tested separately, under the most severe conditions thatmay be expected to occur in normal use, their rated voltage being not more than 300V forsingle-phase motor-compressors and 600 V for other motor-compressors intended for usein accordance with: CSA C22.1, Canadian Electrical Code
18、 (CEC) Part I, and CAN/CSA-C22.2 No. 0, Generalrequirements Canadian Electrical Code, Part II, in Canada; NOM-001-SEDE, La Norma de Instalaciones Electricas (Mexican Electrical Code MEC),in Mexico; NFPA 70, National Electrical Code (NEC), in the United States.2DV DC Modification by adding the follow
19、ing to 2:Any reference within this standard to International Standards that are adopted in Canada,in Mexico, and in the United States shall be replaced by a reference to the equivalentadopted standard. The requirements of these adopted Standards shall take precedenceover International Standards on w
20、hich they are based.CSA C22.1-12,Canadian Electrical Code (CEC) Part ICAN/CSA-C22.2 No. 0-10,General requirements Canadian Electrical Code, Part IIIEC 60068-2-52,Environmental testing Part 2: Tests Test Kb: Salt mist, cyclic (sodium, chloridesolution)IEC 60216,Electrical insulating materials Thermal
21、 endurance properties Part 4-1: Ageing ovens Single-chamber ovensIEC 60243-1,Electrical strength of insulating materials Test methods Part 1: Tests at powerfrequenciesIEC 60695-11-20,Fire hazard testing Part 11-20: Test flames 500 W flame test methodsMARCH 22, 2013NATIONAL DIFFERENCES FOR UL UL 6033
22、5-2-344UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULISO 817,Refrigerants Designation systemISO 4892-2,Plastics Methods of exposure to laboratory light sources Part 2: Xenon-arc lampsASHRAE 34,Designation and Safety Classification of Refrige
23、rantsASME,Boiler and Pressure Vessel Code Section VIIIASTM A90/A90M,Standard Test Method for Weight Mass of Coating on Iron and Steel Articles with Zinc orZinc-Alloy Coatings3.108DV DE Modification of 3.108 definition to add NOTE as follows:NOTE 1A: The pressure in the low pressure side can be eithe
24、r above or below the critical pressure in atranscritical refrigeration system.3.111DV DE Addition of the following definitions to Clause 3 as follows:3.111DV.1 PRIMARY SINGLE PHASING Primary single-phase failure occurs when one of the threeincoming lines to the primary of the transformer supplying t
25、he MOTOR-COMPRESSOR suppliesno voltage to the transformer.3.111DV.2 MAXIMUM CONTINUOUS CURRENT The maximum amount of current that is allowed toflow to the MOTOR-COMPRESSOR MOTOR by the MOTOR-COMPRESSOR PROTECTION SYSTEM.3.111DV.3 BYPASS VALVE A device that relieves high-side pressure into the low-si
26、de at apredetermined pressure differential.7.1DV.1 DR Modification of Clause 7.1 of the Part 1 to replace the second dashed itemwith: Symbol for nature of supply including number of phases, unless for single phaseoperation.7.1DV.2 DR Modification of Clause 7.1 of the Part 1 to add the following dash
27、ed itemsand note after the seventh dashed item:Addition: Motor compressor locked rotor amperage (LRA) rating(s). Manufacturing date or date code and location if the product is produced inmore than one location. If the motor compressor is thermally protected it shall be marked with “Thermally Protect
28、ed if a THERMAL PROTECTOR is provided or is specifiedby the MOTOR-COMPRESSOR manufacturer, orMARCH 22, 2013 NATIONAL DIFFERENCES FOR UL UL 60335-2-34 5UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM UL Thermally Protected System if a protective
29、system with all sensingelements and motor-current-interrupting means is provided or specifiedby the MOTOR-COMPRESSOR manufacturer.NOTE 1A If motor winding switching or alternate motor wiring options cause the measured LRA to exceed thelimits specified in 7.1DV, additional LRA marking may be required
30、.19.11DV.2 D1 Modification by replacing 19.11.2 with the following:For simulation of the fault conditions, a MOTOR-COMPRESSOR incorporating an ELECTRONIC CIRCUITshall be connected to the substitute refrigeration circuit of Figure AA.1 and operated underthe conditions given in AADV.5. The condensing
31、temperature applied shall be 5K lowerthan that which caused the MOTOR-COMPRESSOR PROTECTIVE ELECTRONIC CIRCUIT to operate or theMOTOR-COMPRESSOR to stall during the test of AADV.5.19.101DV DR Modification to Clause 19.101 to add the following:19.101DV.1 The value of locked-rotor current of a MOTOR-C
32、OMPRESSOR assembly asdetermined by test shall not exceed 110 percent of the marked locked-rotor current rating.19.101DV.2 The locked-rotor current and voltage shall be measured 4 s after the MOTOR-COMPRESSOR assembly is energized in accordance with 19.101. Values measured in less than4 s are accepta
33、ble if the motor protective device operates within that time. If the MOTOR-COMPRESSOR is designed for more than one rated voltage or a voltage range, the test shall beperformed using the higher RATED VOLTAGE.19.101DV.3 A calculation shall then be made by multiplying the locked-rotor currentmeasured
34、at4sbytheMOTOR-COMPRESSOR rated voltage. This value shall then be divided bythe voltage measured at 4 s and used for comparison to the marked locked-rotor currentrating. For three-phase motors, the locked-rotor current and voltage at 4 s shall be theaverage of these values.21.1.DV.2 D2 Addition of t
35、he following note to the Part 2:NOTE 1A For the alternative test of 21.1DV.1 in Part 1, a force of 6.8 J may be required by some existing NorthAmerican final application product standards. The 6.8 J value would be employed to evaluate a non-metallicenclosure cover if additional protection was not af
36、forded by final application equipment design.21.101.DV D1 Addition to Clause 21 of the Part 1 as follows:If electrical enclosure seal gaskets are required to comply with the tests of Clause 15, thenthey shall comply with Annex 101.DVBB, Accelerated aging tests Gaskets.22.7DV.1 D1 Modification to Cla
37、use 22.7 to add the following bullet item to the thirdparagraph of Part 2: a minimum of 3 times the maximum high side pressure during the heat transfer mediumfailure test on the end use product, but not less than the minimum test pressure asrequired in Table 101, if the motor compressor employs a BY
38、PASS VALVE.MARCH 22, 2013NATIONAL DIFFERENCES FOR UL UL 60335-2-346UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM UL22.7DV.2 D1 Modification to Clause 22.7 to replace the fourth paragraph of the Part 2 asfollows:A HOUSING which is exposed only
39、to low side pressure shall be subjected to a pressure equalto: for subcritical systems, a minimum of 5 times the saturated vapor pressure of therefrigerant at 20C or equal to 2.5 MPa, whichever is higher, rounded up to the next 0.2MPa. for TRANSCRITICAL REFRIGERATION SYSTEMS, 5 times the DESIGN PRES
40、SURE but not less than theminimum test pressure as required by Table 102. for a MOTOR-COMPRESSOR employing a BYPASS VALVE, the housing which is exposed only to lowside pressure shall be subjected to a pressure equal to 3 times the maximum low sidepressure recorded when the valve is relieving during
41、the heat transfer medium failure teston the end use product, but not less than the minimum test pressure as required in Table102.22.7DV.3 D1 Modification by adding the following to Clause 22.7:A motor PROTECTIVE DEVICE located within the MOTOR-COMPRESSOR HOUSING shall be subjected to thetest specifi
42、ed below. Following this test, the PROTECTIVE DEVICE shall not be structurallydamaged. In addition, the maximum allowable operating (opening) and reset (closing)temperature:a) Deviation shall not exceed8Kofthetest value between the two PROTECTIVEDEVICE samples, andb) Drift shall not exceed 5 percent
43、 of the test value of the specific PROTECTIVE DEVICEsample.If the operating and reset temperatures of a PROTECTIVE DEVICE have not been declared,one sample PROTECTIVE DEVICE shall be mounted within an air oven having a forced aircirculation velocity of not less than 0,51 m/s and designed to nullify
44、the effects of radiation.The oven temperature shall be measured at a location immediately adjacent to thePROTECTIVE DEVICE. Operating and reset temperature shall be indicated by acontinuity-indicating circuit that does not influence operation of the PROTECTIVE DEVICE.Temperatures of all PROTECTIVE D
45、EVICE parts shall be maintained at equilibrium. Theoven temperature shall then be increased at a rate of not greater than 0,5 K per minute untilthe PROTECTIVE DEVICE operates. Oven equilibrium conditions shall then bereestablished. The oven temperature shall then be decreased at a rate of not greate
46、r than0,5 K per minute until the PROTECTIVE DEVICE resets. The test shall be repeated on thesame sample PROTECTIVE DEVICE.The test shall then be conducted using a second sample PROTECTIVE DEVICE.NOTE If the operating and reset temperatures of a PROTECTIVE DEVICE have been declared, then determining
47、theoperating and reset temperatures prior to the pressure test is not required.MARCH 22, 2013 NATIONAL DIFFERENCES FOR UL UL 60335-2-34 7UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULThe two samples of the PROTECTIVE DEVICE shall then be pla
48、ced within a containercompletely filled with an incompressible, inert fluid to exclude all air, and connected to ahydraulic pump system.The container pressure shall be raised gradually and maintained for 1 minute at a pressureof not less than 120 percent of the maximum pressure developed during the
49、heat transfermedium failure test on the end-use product.The air oven temperature test as specified above shall then be conducted on each samplePROTECTIVE DEVICE following the pressure test.22.7.DV.4 D2 Modification by adding the following Note 106A:NOTE 106A Slightly different high and low side pressure values may be needed to meet the requirements ofsome existing North American final application product standards.22.7.DV.5 D1 Modification by adding the following to Clause 22.7:A SEMI-HERMETIC MOTOR-COMPRESSOR HOUSING emplo
