1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULNational Differences ForUL 60730-2-2Standard for Automatic Electrical Controls for Household and Similar Use; Part 2: ParticularRequirements for Thermal Motor ProtectorsUL COPYRIGHTED MATERIAL NO
2、T AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULNational Differences ForUL 60730-2-2Standard for Automatic Electrical Controls for Household and Similar Use; Part 2: ParticularRequirements for Thermal Motor ProtectorsEdition: 2Edition Date: May 19, 2004These revisions
3、to UL 60730-2-2 are being issued to revise the endurance test and addrequirements covering deviation and drift to provide a performance/reliability bench mark forthermal motor protectors when tested to the manufacturers declared electrical and thermalrating.This document provides a single listing of
4、 the National Differences included 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 p
5、ermission of UL.UL provides this standards 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
6、 similar damages,including loss of 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
7、any damage ever exceed the pricepaid 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 reas
8、onableattorneys fees) resulting from any error or deviation introduced while purchaser is storing an electronicStandard on the purchasers computer system.Copyright 2014 Underwriters Laboratories Inc.MARCH 7, 2014NATIONAL DIFFERENCES FOR UL UL 60730-2-22UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURT
9、HER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION 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 differenc
10、e type, andthese types are additionally noted in 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
11、 are deviations based on safety practices. These 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 u
12、ntil a particularcomponent standard is harmonized 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 differen
13、ce entails. Typically one of thefollowing words 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 selec
14、t words to the base IEC text.Deletion / Delete - 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 theaddition, replacement or d
15、eletion of certain words or the replacement of an entire clause,subclause, table, figure, or annex of the base IEC text.MARCH 7, 2014 NATIONAL DIFFERENCES FOR UL UL 60730-2-2 3UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULNational Difference
16、s1.1DV DE Modification of 1.1 to by adding the following note after the third paragraph:Thermal motor protectors that are off-winding (not integrated with the motor winding) to the motor are coveredunder the scope of this part 2 and may be considered incorporated controls with respective to the requ
17、irementsof this standard.1.1DV.2 Deleted March 7, 2014.1.1.101DV D2 Addition:1.1.101DV.1 In the U.S.A, this standard applies to thermal motor protectors designed forhousehold, commercial, or industrial use.1.1.102DV D2 Addition:1.1.102DV.1 This standard does not apply to a motor protector the contac
18、ts of whichcontrol a relay coil in a motor starter.1.1.102DV.2 A thermal cutoff shall comply with the requirements in the Standard forThermal-Links Requirements and Application Guide, UL 60691, in addition to therequirements of this standard.2.6.101DV D2 Modification by adding the following notes:NO
19、TE 1 Type 3 action applies to in-winding, integrated thermal motor protectors.NOTE 2 Type 2 action applies to off-winding, incorporated thermal motor protectors.4.3.2DV D2 Modification of 4.3.2:4.3.2DV.1 The requirements in 4.3.2 are applicable.5DV D2 Modification of clause 5:5DV.1 This clause of th
20、e Part 1 is applicable.6.4.2DV D2 Replacement of 6.4.2 with the following:6.4.2DV.1 This clause of the Part 1 is applicable to thermal motor protectors declared tobe incorporated with deviation, drift and endurance values in Table 7.2.6.4.2.101DV D2 Addition: Type 3 action.MARCH 7, 2014NATIONAL DIFF
21、ERENCES FOR UL UL 60730-2-24UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM UL6.4.3.3DV D2 Modification to 6.4.3.3:6.4.3.3DV.1 Void.6.11DV D2 Modification of 6.11 by replacing it with the following:6.11DV.1 This clause of the Part 1 is applicabl
22、e for controls declared to be incorporatedwith endurance values in Table 7.2.Table 7DV D2 Modification of Table 7.2 with the following eight national differences:DV.1 Insert row 7, with the first column being “7”, the second column being “The type ofload controlled7)”, the third column being “17, 6.
23、2”, and the fourth column being “X”.DV.2 Insert row 27, with the first column being “27”, the second column being “Number ofautomatic cycles (A) for each AUTOMATIC ACTION)”, the third column being “6.11DV.1,17.8”, and the fourth column being “X”.”.DV.3 Insert row 37, with the first column being “37”
24、, the second column being “Minimumand/or maximum rates of change of ACTIVATING QUANTITY, or minimum and/or maximumcycling rates for a SENSING CONTROL4)”, the third column being “15, 17”, and the fourthcolumn being “X”.DV.4 Insert row 39, with the first column being “39”, the second column being “Typ
25、e ofAction”, the third column being “6.4”, and the fourth column being “D”.DV.5 Insert row 41, with the first column being “41”, the second column being“MANUFACTURING DEVIATION and condition of test appropriate to deviation”, the thirdcolumn being “15, 17.14”, and the fourth column being “X”.DV.6 In
26、sert row 42, with the first column being “42”, the second column being “DRIFT”,the third column being “15, 16.2.4DV.1”, and the fourth column being “X”.DV.7 Notes 4 and 7 of the part 1 applies.DV.8 Replace note (101) with the following, “Thermal motor protectors are classified asType 3.B.H controls.
27、7.101DV D2 Addition:7.101DV.1 A protector shall be marked with the opening temperature; and, for anautomatically reset protector, closing temperature.A protector for which the catalog number identifies the temperature ratings is not required to be marked with thetemperature ratings when the complete
28、 catalog number is marked on the protector.11.101DV D2 Addition:11.101DV.1 Insulation for a protector intended for use in a Class A or Class B insulatedmotor shall be:a) 0,7 mm (0,028 inch) minimum thickness treated fiber;MARCH 7, 2014 NATIONAL DIFFERENCES FOR UL UL 60730-2-2 5UL COPYRIGHTED MATERIA
29、L NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULb) 0,1 mm (0,004 inch) minimum thickness polyethylene terepthalate film (PETP);c) 0,4 mm (0,015 inch) minimum thickness silicone-impregnated fiberglass;d) 0,4 mm (0,015 inch) minimum thickness isocyanate-resin-impregn
30、atedfiberglass; ore) 0,152 mm (0,006 inch) minimum thickness aramid paper.Other materials are capable of being used when they comply with the protector insulation test requirements inthe Protector Insulation Test, 13.101DV 13.101DV.6, or the equivalent, and with the traceability requirementsspecifie
31、d in the Standard for Polymeric Materials Short Term Property Evaluations, UL 746A.11.101DV.2 Any insulation for an integrated (in-winding) protector intended for use in aClass F or higher insulated motor shall comply with the Protector Insulation Test, 13.101DV 13.101DV.6, and with the traceability
32、 requirements specified in the Standard forPolymeric Materials Short Term Property Evaluations, UL 746A.11.101DV.3 Polymeric materials used in incorporated (off-winding) protectors, shall berated for the maximum use temperature under normal operating condition of the motor.11.101DV.4 The constructio
33、n of a protector shall be such that it reduces the risk ofsubstitution of a protector or thermal element of higher calibration than the protector orelement originally provided.13.101DV D2 Addition of protector insulation test:13.101DV.1 Eighteen samples of the tubular style insulation are to be cond
34、itioned inaccordance with Table 13.101DV. Three samples are to be installed either on protectors oron metal mandrels representative of the size and shape of the protector to be insulated andsubmitted to the 18-day test described in Table 13.101DV. Fifteen samples are to be 4inches (102 mm) diameter
35、or square in the minimum thickness used or is to be of a sizerepresentative of the end-use protector and subjected to the other tests in Table 13.101DV.Table 13.101DVProtector insulation conditioningNo. of samples Conditioning5 As received5 Exposure to moist air at a temperature of 30 2C (863.6F) an
36、d 90% 5% RH for 24 hours3 18-day oven temperature cycling per 13.101DV.4 13.101DV.613.101DV.2 Following the conditioning, each sample is to be subjected to a dielectricvoltage within a test chamber. For the fifteen 4 inch samples, the electrodes of thedielectric equipment shall be placed on opposite
37、 sides and in the center of the sample. Forthe 3 samples on the mandrel or protector body, one electrode shall be connected to themandrel or protector body and the other should be on the opposite side of the insulationsleeve in the center of the sleeve. The voltage is to be applied at a uniform rate
38、 of 500 voltsper second until breakdown occurs. When physical evidence of dielectric breakdown is notapparent, the voltage is to be reapplied until a more positive indication is produced.MARCH 7, 2014NATIONAL DIFFERENCES FOR UL UL 60730-2-26UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUC
39、TION ORDISTRIBUTION WITHOUT PERMISSION FROM UL13.101DV.3 As a result of this test, the average breakdown value for each set of samplesshall be no less than 5 000 volts. In addition, the average breakdown value for all 13conditioned samples shall be no less than one-half the value of the as-received
40、samples.For example, when the as-received samples had a breakdown of 15 000 volts, then theconditioned samples shall not have a breakdown less than 7 500 volts.13.101DV.4 The samples to be subjected to 18 days of oven temperature are to besuspended vertically in an air-circulating oven. The oven tem
41、perature is to be cycled asspecified in Table 13.102DV. This Table is based upon the maximum temperature seeTable 14.1 that meets the requirements for the insulation class and a minimumtemperature such that the average of the minimum and maximum temperatures equals themaximum average temperature for
42、 the insulation class as specified in Table 14.1.Table 13.102DVOven cycling temperature limitsInsulation class Maximum temperature Minimum temperatureC F C FA 175 347 125 257E 190 374 140 284B 200 392 150 302F 225 437 175 347H 250 482 200 392N 270 518 220 428R 290 554 240 46413.101DV.5 The cycle rat
43、e shall be such that at least 2 000 cycles are completed within aminimum 18-day duration to represent the full locked-rotor test period.13.101DV.6 As an alternate to using an oven as described in 13.101DV.4, motor sampleswith an insulated protector are to be cycled such that the temperatures in Tabl
44、e 13.102DVare observed.15DV D2 Modification of Section 15:15DV.1 The requirements in Section 15 are applicable to thermal motor protectors that aredeclared to be incorporated with deviation and drift values in Table 7.2.15DV.2 The deviation shall not exceed 5K of the manufacturers declared value.15D
45、V.3 The drift shall not exceed 5K of the manufacturers declared value.16.2.4DV D2 Modification of 16.2.4:16.2.4DV.1 This clause of the Part 1 is applicable.17DV D2 Modification of Clause 17:17DV.1 This clause of Part 1 is applicable to thermal motor protectors only when declaredin Table 7.2. All sub
46、-clauses of the Part 1 are applicable except as follows:MARCH 7, 2014 NATIONAL DIFFERENCES FOR UL UL 60730-2-2 7UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM UL17.1.3.1DV D2 Addition of the following dashed sentence:- a test of AUTOMATIC ACTIO
47、N at accelerated rate specified in 17.8.4DV.1 only applies.17.1.3.3DV D2 Modification:17.1.3.3DV.1 Not applicable.17.1.4DV D2 Modification:17.1.4DV.1 Not applicable.17.2.2DV D2 Modification:17.2.2DV.1 Not applicable.17.2.5DV D2 Modification:17.2.5DV.1 Not applicable.17.4DV D2 Modification:17.4DV.1 N
48、ot applicable.17.6DV D2 Modification:17.6DV.1 Not applicable.17.7DV D2 Modification:17.7DV.1 Not applicable.17.8.4DV D2 Add the following:17.8.4DV.1 The number of automatic cycles shall be a minimum of 2000 cycles or asdeclared in table 7.2. The cycling rate (on-off time), locked rotor or overload c
49、urrent andpower factor shall be declared. A synthethic or artificial load may be used to simulate thetest parameters for this test.17.9DV D2 Modification:17.9DV.1 Not applicable.17.10DV D2 Modification:17.10DV.1 Not applicable.17.11DV D2 Modification:17.11DV.1 Not applicable.MARCH 7, 2014NATIONAL DIFFERENCES FOR UL UL 60730-2-28UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM UL17.12DV D2 Modification:17.12DV.1 Not applicable.17.13DV D2 Modification:17.13DV.1 Not applicable.17.14DV D2 Add the
