UL 60335-2-34 (ND)-2017 National Differences For Household and Similar Electrical Appliances C Safety C Part 2-34 Particular Requirements for Motor-Compressors (Sixth Edition).pdf

1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULNational Differences ForHousehold and Similar Electrical Appliances Safety Part 2-34: Particular Requirements forMotor-CompressorsUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION O

2、RDISTRIBUTION WITHOUT PERMISSION FROM ULNational Differences ForHousehold and Similar Electrical Appliances Safety Part 2-34: Particular Requirements forMotor-CompressorsSixth EditionEdition Date: November 3, 2017The following is the Sixth Edition of ANSI/UL 60335-2-34, the common CSA Group and UL(b

3、inational) standard that is an adoption of IEC 60335-2-34, Safety Standard for of Householdand Similar Electrical Appliances Safety Part 2-34: Particular Requirements for Motor-Compressors (IEC 60335-2-34, Edition 5.2:2016.)This document provides a single listing of the National Differences included

4、 in the UL adoption ofthe corresponding IEC standard.All rights reserved. No part of this 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 s

5、tandards document as is without warranty of any kind, either expressed or implied,including 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

6、 profits, lost savings, loss of data, or any other damages arising out of the use of or theinability 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 pricepa

7、id for this standards document, regardless of the form of the claim.Users of the electronic 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 fr

8、om any error or deviation introduced while purchaser is storing an electronicStandard on the purchasers computer system.Copyright 2017 Underwriters Laboratories Inc.NOVEMBER 3, 2017NATIONAL DIFFERENCES FOR2UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISS

9、ION FROM ULPrefaceThis document provides a single listing of the technical National 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 i

10、n this document. The standard may not use all types of thesedeviations.D1 - These 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. Thes

11、e are deviations for IEC requirements that maybe acceptable, but adopting the IEC 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 harmoniz

12、ed with the IEC component standard.DE - These are deviations based on editorial 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

13、 is used to explain how the text of the national difference is to be applied to 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

14、- A deletion entails complete deletion of an entire numbered clause, subclause, table,figure, or annex without any replacement text.Modification / Modify - A modification is an altering of the existing base IEC text such as the addition,replacement or deletion of certain words or the replacement of

15、an entire clause, subclause, table, figure,or annex of the base IEC text.NOVEMBER 3, 2017 NATIONAL DIFFERENCES FOR 3UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULNational Differences1DV.1 D2 Modification to replace the second sentence of the

16、 second paragraph inClause 1 with the following:It applies to motor-compressors tested separately, under the most severe conditions thatcan be expected to occur in normal use, their rated voltage being not more than 300 V forsingle-phase motor-compressors and 600 V for other motor-compressors intend

17、ed for usein accordance with: CSA C22.1, Canadian Electrical Code (CE Code) Part I, in Canada; NFPA 70, National Electrical Code (NEC), in the United States.1DV.2 D2 Modification by adding the following to Clause 1 of the Part 2:For MOTOR-COMPRESSORS rated greater than 600 V, see the requirements of

18、 Annex 101.DVI.2DV DC Modification by adding the following to Clause 2:Any reference within this standard to International Standards that are adopted in Canadaand in the United States shall be replaced by a reference to the equivalent adoptedstandard. The requirements of these adopted Standards shal

19、l take precedence overInternational Standards on which they are based.CSA C22.1-15,Canadian Electrical Code (CE Code) Part ICAN/CSA-C22.2 No. 0-10,General requirements Canadian Electrical Code, Part IIC22.2 No. 253,Standard for Medium-Voltage AC Contactors, Controllers and Control CentersCAN/CSA-C22

20、.2 No. 60335-1,Safety Standard for Household and Similar Electrical Appliances, Part 1: GeneralRequirementsIEC 60068-2-52,Environmental testing Part 2: Tests Test Kb: Salt mist, cyclic (sodium, chloridesolution)IEC 60112,Method for the determination of the proof and the comparative tracking indices

21、of solidinsulating materialsNOVEMBER 3, 2017NATIONAL DIFFERENCES FOR4UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULIEC 60216,Electrical insulating materials Thermal endurance properties Part 4-1: Ageing ovens Single-chamber ovensIEC 60243-1,

22、Electrical strength of insulating materials Test methods Part 1: Tests at powerfrequenciesIEC 60243-2,Electrical strength of insulating materials Test methods Part 2: Additional requirementsfor tests using direct voltageIEC 60695-11-20,Fire hazard testing Part 11-20: Test flames 500 W flame test met

23、hodsIEEE 1776,IEEE Recommended Practice for Thermal Evaluation of Unsealed or Sealed InsulationSystems for AC Electric Machinery Employing Form-Wound Pre-Insulated Stator Coils forMachines Rated 15 000 V and BelowISO 817,Refrigerants Designation systemISO 4892-2,Plastics Methods of exposure to labor

24、atory light sources Part 2: Xenon-arc lampsASHRAE 34,Designation and Safety Classification of RefrigerantsASME, 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 CoatingsNFPA 70,National Electr

25、ical Code (NEC)UL 347Safety Standard for Medium-Voltage AC Contactors, Controllers and Control CentersUL 60335-1Safety Standard for Household and Similar Electrical Appliances, Part 1: GeneralRequirements3.112DV DE Addition of the following definitions to Clause 3 as follows:3.112DV.1 PRIMARY SINGLE

26、 PHASINGPrimary single-phasing occurs when one of the three incoming lines to the primary of thetransformer supplying the MOTOR-COMPRESSOR supplies no voltage to the transformer.NOVEMBER 3, 2017 NATIONAL DIFFERENCES FOR 5UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION

27、WITHOUT PERMISSION FROM UL3.112DV.2 MAXIMUM CONTINUOUS CURRENTThe maximum amount of current that is allowed to flow to the MOTOR-COMPRESSOR MOTOR by theMOTOR-COMPRESSOR PROTECTION SYSTEM.3.112DV.3 BYPASS VALVEA device that relieves high-side pressure into the low-side at a predetermined pressurediff

28、erential.3.112DV.4 FORM WOUND MOTORA motor using insulated rectangular shaped conductors that are wrapped with additionalelectrical insulation over the entire coil prior to insertion and are precisely positioned andformed into coils.3.112DV.5 RANDOM WOUND MOTORA motor using insulated round conductor

29、s in which the winding turns occupy randompositions in a slot.3.112DV.6 MAXIMUM RATED CURRENT (MRC)The current resulting when a hermetic refrigerant motor-compressor and ELECTRONIC CIRCUITare operated under any conditions such as maximum speed/maximum load, maximumspeed/minimum load, minimum speed/m

30、inimum load, minimum speed/maximum load,including locked-rotor such that current to the motor-compressor and ELECTRONIC CIRCUIT isat a maximum. The MRC is the current at the input of the ELECTRONIC CIRCUIT controlling device.3.112DV.7 FORMETTEA special test model used for the evaluation of the elect

31、rical insulation systems forform-wound windings.3.112DV.8 BARGThe pressure, in units of bars, above or below atmospheric pressure. The g at the end ofthe word indicates that the measurement is not absolute pressure, sometimes indicated bybara.3.112DV.9 MAXIMUM ALLOWABLE PRESSUREA limit to the refrig

32、erating system operating pressure, generally the maximum pressure forwhich the equipment is designed, as specified by the manufacturer. Maximum allowablepressure constitutes a limit to the operating pressure whether the equipment is working ornot.4DV.101 DR Addition (Canada only):This clause of Part

33、 1 is applicable except as follows.NOVEMBER 3, 2017NATIONAL DIFFERENCES FOR6UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULCAN/CSA-C22.2 No. 0 shall form a part of, and be read in conjunction with, this Standardas far as the requirements appl

34、y, except that, where this Standard contains requirementsthat are at variance with those of CAN/CSA-C22.2 No. 0, the requirements of this Standardshall take precedence.5.104DV DR Add the following clause to Clause 5 of the Part 1:Cheesecloth specified in this Standard shall be untreated cotton cloth

35、 0,8 1,0 m (31 39inches) wide and 28 30 m/kg (42 45 ft/lb). Tests involving cheesecloth shall beconducted in a room free of drafts.7.1DV.1 DR Modification of Clause 7.1 of the Part 1 to replace the second dashed itemwith the following: symbol for nature of supply including number of phases, unless f

36、or singlephase operation;7.1DV.2 DR Modification of Clause 7.1 of the Part 1 to add the following after the eighthdashed item: motor compressor locked rotor amperage (LRA) rating(s). If motor windingswitching or alternate motor wiring options cause or allow different LRA, thehighest resulting LRA sh

37、all be marked; 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 Protected if a THERMAL PROTECTOR is provided or is specified by theMOTOR-COMPRESSOR manufacturer; or Therm

38、ally Protected System if a protective system with all sensing elementsand motor-current-interrupting means is provided or specified by the MOTOR-COMPRESSOR manufacturer.A motor-compressor subjected to the Optional Pressure Test in Annex 101.DVG shall belegibly and permanently marked with the maximum

39、 allowable or design pressure, psig(kPa) or Barg.19.101DV DR Add Clauses 19.101ADV.1 to 19.101ADV.5 to Clause 19.101 of the Part 2:19.101ADV.1 For MOTOR-COMPRESSORS with primary thermal protection, Clauses 19.101ADV.2 19.101ADV.4 shall be used. For MOTOR-COMPRESSORS with electronic protection, Claus

40、e19.101ADV.5 shall be used.NOVEMBER 3, 2017 NATIONAL DIFFERENCES FOR 7UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM UL19.101ADV.2 The value of locked-rotor current of a MOTOR-COMPRESSOR assembly asdetermined by test shall not exceed 110 % of t

41、he marked locked-rotor current rating.19.101ADV.3 The locked-rotor current and voltage shall be measured 4 s after the MOTOR-COMPRESSOR assembly is energized in accordance with Clause 19.101. Values measured inless than 4 s are acceptable if the motor protective device operates within that time. If

42、theMOTOR-COMPRESSOR is designed for more than one rated voltage or a voltage range, the testshall be performed using the higher RATED VOLTAGE.19.101ADV.4 A calculation shall then be made by multiplying the locked-rotor currentmeasured at4sbytheMOTOR-COMPRESSOR rated voltage. This value shall then be

43、 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 measured in each of the three supply lines.19.101ADV.5 Motor-compressors intended to be con

44、trolled or protected by an electroniccircuit shall be marked with MAXIMUM RATED CURRENT (MRC). This current shall be: The maximum current value as measured during Clause AA.4 testing; or The current rating of the motor-compressor controlling device if a PROTECTIVEELECTRONIC CIRCUIT OR ELECTRONIC CIR

45、CUIT is part of the controlling device.19.105DV D1 Modification by adding the following after the third paragraph:As an alternate test method, two of the MOTOR-COMPRESSOR windings shall be connectedtogether to form a single line. A single-phase supply source rated at 0,866 of the RATEDVOLTAGE of the

46、 MOTOR-COMPRESSOR shall be applied to the single line (formed from the twowindings) and the remaining line (from the remaining winding) so that maximum currentflows in an unprotected winding of the MOTOR-COMPRESSOR.21.1DV D2 Modification by adding the following Note to Clause 21.1DV of the Part 1:NO

47、TE For the alternative test of Clause 21.1DV.1 in Part 1, a force of 6,8 J might be required by some existingNorth American final application product standards. The 6,8 J value would be employed to evaluate a non-metallicenclosure cover if additional protection was not afforded by final application

48、equipment design.21.101DV D1 Add the following clause to Clause 21 of the Part 1:If electrical enclosure seal gaskets are required to comply with the tests of Clause 15, thenthey shall comply with Annex 101.DVA.22.102DV D1 Add the following clause to Clause 22 of the Part 1:Motor-compressors intende

49、d to be used with A2 or A3 classified refrigerants shall be of ahermetically sealed design construction with a leakage rate of 3 grams per year or less.The leakage rate shall be measured by filling the MOTOR-COMPRESSOR HOUSING with helium to apressure of not less than one-third of the pressure applied during the testing conductedunder Clause 22.7 or Annex 101.DVG. A mass spectrometer shall be used to determine theleakage rate.NOVEMBER 3, 2017NATIONAL DIFFERENCES FOR8UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR F