1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULNational Differences ForUL 60947-5-2Low-Voltage Switchgear and Controlgear - Part 5-2: Control Circuit Devices and SwitchingElements - Proximity SwitchesUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR
2、 FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULNational Differences ForUL 60947-5-2Low-Voltage Switchgear and Controlgear - Part 5-2: Control Circuit Devices and Switching Elements -Proximity SwitchesEdition: 3Edition Date: March 28, 2014UL 60947-5-2 is an adoption of IEC 60947-5-2,
3、edition 2.2 (2004) which is based on the secondedition (1997), and its amendment 1 (1999) and its amendment 2 (2003).The third edition of UL 60957-5-2, dated March 28, 2014, has been issued and reflects the ANSIapproval date as an American National Standard and is based off the proposals dated Janua
4、ry13, 2012. Please note that the national difference document incorporates all of the U.S. nationaldifferences for UL 60947-5-2.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 public
5、ation 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,including but
6、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 theinabi
7、lity 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 electronic vers
8、ions 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 the pur
9、chasers computer system.Copyright Underwriters Laboratories Inc.MARCH 28, 2014NATIONAL DIFFERENCES FOR UL UL 60947-5-22UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULPrefaceThis document provides a single listing of the technical National Dif
10、ferences 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 - These are d
11、eviations 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 IEC requi
12、rements 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 comment
13、s 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 the bas
14、e 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,table, f
15、igure, 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 28, 2014
16、 NATIONAL DIFFERENCES FOR UL UL 60947-5-2 3UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULNational Differences1DV D2 Modification of 1 by replacing with the following:The provisions of the general rules dealt with in Annex 101.DVB, Reference
17、No. 2 areapplicable to this standard. Where specifically called for, any references to Part 1 shall beto the referenced clause as amended by the national differences, if any.1.1DV.1 DR Modification of 1.1 by adding 1.1DV.1.1 1.1DV.1.2:1.1DV.1.1 This equipment is for use in ordinary locations in acco
18、rdance with Annex101.DVB, Reference No. 1. In Canada, general requirements applicable to this equipmentare provided in Reference No. 7 of Table 101.DVB.1.1DV.1.2 These requirements cover electronic PROXIMITY SWITCHES for use on industrialmachinery or mass-production industrial equipment as defined b
19、y Annex 101.DVB,Reference No. 4.1.1DV.2 D1 Modification of 1.1 by adding the following:Equipment requirements are intended for use in an ambient temperature of 0 to 40 Cunless specified otherwise.1.2DV D2 Modification to 1.2 by adding the following:For a list of National normative standards, see Ann
20、ex 101.DVB, Table 101.DVB, ReferenceNo. 2.3DV D2 Deletion of Clause 3:Clause 3 of this Part 2 does not apply.4.2DV D2 Deletion of subclause 4.2:Subclause 4.2 of this Part 2 does not apply.4.3.2.4DV D2 Deletion of subclause 4.3.2.4:Subclause 4.3.2.4 does not apply.4.3.4DV D2 Deletion of 4.3.4:Subclau
21、se 4.3.4 does not apply.4.3.5.1DV D2 Modification by replacing 4.3.5.1:Annex 101.DVB, Reference No. 3, 4.4DV applies. As an option, a switching element mayalso comply with the requirements given in Table 4.MARCH 28, 2014NATIONAL DIFFERENCES FOR UL UL 60947-5-24UL COPYRIGHTED MATERIAL NOT AUTHORIZED
22、FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM UL4.3.5.2DV D2 Modification by adding the following to 4.3.5.2:This clause is optional.4.3.6DV D2 Delete subclause 4.3.6:Subclause 4.3.6 does not apply.4.4DV D2 Modification of subclause 4.4 by replacing with the following:Subclause 4.4
23、DV of Annex 101.DVB, Reference No. 3 applies. As an option, switchingelements may be tested in accordance with the requirements of 4.4.5.2.1DV D2 Modify 5.2.1 by adding the following:5.2.1DV.1 The data specified in items c) and f) through y) does not apply.5.2.1DV.2 The data specified in items d) an
24、d e) of Clause 5.1.1 shall be marked on thenameplate of the control circuit device. Where space does not permit complete electricalratings, one or more ratings shall be marked on the device, with additional rating(s)provided in the manufacturers published literature.5.2.1DV.3 When the marked ratings
25、 noted in item e) are the contact rating codedesignations specified per Annex 101.DVB Reference No. 3, the information concerningthe voltage and overload current ratings for each contact rating code designation shall bepublished in a catalog, contained on a marking sheet packed with the product, oro
26、therwise made available to the user.5.2.1DV.4 A wiring diagram shall be provided to indicate the proper connections for thepower supply, load, and control circuit.5.3DV D1 Modification by replacing 5.3 with the following:5.3DV.1 Instruction for Installation5.3DV.1.1 The manufacturer shall make readi
27、ly available instructions for installation.6.1.1DV D2 Deletion of 6.1.1:Clause 6.1.1 does not apply.7.1.1DV D2 Modify 7.1.1 by adding the following:Enclosure construction and performance requirements are defined in Annex 101.DVB,Table 101.DVB, Reference No. 2.7.1.2DV D2 Modify 7.1.2 by adding the fo
28、llowing:Subclause 7.2.3.4 of Annex 101.DVB, Table 101.DVB, Reference No. 2 applies.7.1.3DV D2 Modify 7.1.3 by replacing with the following:7.1.3DV.1 Subclause 7.1.3 of Annex 101.DVB, Table 101.DVB, Reference No. 2 applies.MARCH 28, 2014 NATIONAL DIFFERENCES FOR UL UL 60947-5-2 5UL COPYRIGHTED MATERI
29、AL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM UL7.1.3DV.2 For other than providing isolation between different circuits or in a safety circuit,spacings between traces of different potential on a printed wiring board are not requiredto comply with the spacing requi
30、rements of this standard when:a) The printed wiring board has a flammability rating of V-0;b) The printed wiring board base material has a minimum Comparative TrackingIndex (CTI) of 100 volts; andc) The equipment complies with the Printed Wiring Board Abnormal OperationTest (8.1.2DV.1).In Canada, th
31、is requirement only applies when used in a secondary circuit.7.1.3DV.3 To determine whether spacings at specific points on printed wiring boardscomply with this requirement, each point of the printed wiring board so identified shall betested as described in 8.101DV with adjacent printed circuit path
32、s short-circuited one at atime until the operation of an integral protective device, the opening of a component asdescribed in 8.101DV, or until thermal conditions have stabilized, up to a maximum of 7hours.7.101DV D2 Subclause 7.1.7.1 of Part 1 applies with the following additions:7.101DV.1 Evaluat
33、ion of field wiring leads7.101DV.1.1 A lead that is intended to be spliced in the field to a circuit conductor shall notbe smaller than 0,2 mm2(24 AWG) and the insulation, when rubber or thermoplastic, shallnot be less than 0,8 mm (1/32 inch) thick.7.101DV.1.2 The free length of a field wiring lead
34、shall be not less than 152 mm (6 inches)long or not be less than 100 mm (4 inches) long when intended for installation in an outletbox.7.101DV.1.3 A field wiring lead shall comply with the Strain Relief Test in 8.1.2.7.102DV DR Subclause 7.1.7.3 of Part 1 applies with the following additions:7.102DV
35、.1 Cable lengths other than 2 m long are acceptable in accordance with the NEC.7.102DV.2 Ampacity of conductors are sized to Table 7.102DV.1.MARCH 28, 2014NATIONAL DIFFERENCES FOR UL UL 60947-5-26UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM U
36、LTable 7.102DV.1 Ampacity of conductorsConductor Size, mm2(AWG) Ampacity, amperes23a0,2 (24) 2 20,32 (22) 3 30,5 (20) 5 51,0 (18) 10 71,5 (16) 13 102,5 (14) 18 15aWhere more than three current-carrying conductors are provided, the ampacity of each of the conductors shallbe: 80 percent of these value
37、s for46conductors; 70 percent of these values for79conductors; 50 percent ofthese values for 10 20 conductors; 45 percent of these values for 21 30 conductors; 40 percent of these valuesfor 31 40 conductors; and 35 percent of these values for 41 or more conductors.7.1.7.4DV DR Delete Table 3:Table 3
38、 does not apply.7.1.10DV D2 Modify 7.1.10 by adding the following:Subclause 7.1.10 of Part 1 applies.7.1.11DV D2 Modify 7.1.11 by replacing it with Annex 101.DVA:See Annex 101.DVA.7.1.12DV.1 D2 Modification of title:Title of 7.1.12 should read Double Insulated Switches.7.1.12DV.2 D2 Modify 7.1.12 by
39、 replacing with the following:In lieu of complying with protective earthing requirements, a PROXIMITY SWITCH may usedouble insulation protection provided that it complies with all the applicable requirementsin accordance with Annex 101.DVB, Table 101.DVB, Reference No. 6.7.2.1.1DV D2 Delete 7.2.1.1:
40、Subclause 7.2.1.1 does not apply.7.2.1.2DV D2 Modify 7.2.1.2 by adding the following:For d.c. products with electromagnetic output, a device shall operate at 80% of itsminimum rated voltage.7.2.1.3DV D2 Delete 7.2.1.3:Subclause 7.2.1.3 does not apply.MARCH 28, 2014 NATIONAL DIFFERENCES FOR UL UL 609
41、47-5-2 7UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM UL7.2.1.4DV D2 Delete 7.2.1.4:Subclause 7.2.1.4 does not apply.7.2.1.5DV D2 Delete 7.2.1.5:Subclause 7.2.1.5 does not apply.7.2.1.6DV D2 Delete 7.2.1.6:Subclause 7.2.1.6 does not apply.7.2.
42、1.7DV D2 Delete 7.2.1.7:Subclause 7.2.1.7 does not apply.7.2.1.8DV D2 Delete 7.2.1.8:Subclause 7.2.1.8 does not apply.7.2.1.9DV D2 Delete 7.2.1.9:Subclause 7.2.1.9 does not apply.7.2.1.10DV D2 Delete 7.2.1.10:Subclause 7.2.1.10 does not apply.7.2.1.11DV D2 Delete 7.2.1.11:Subclause 7.2.1.11 does not
43、 apply.7.2.1.12DV D2 Delete 7.2.1.12:Subclause 7.2.1.12 does not apply.7.2.1.13DV D2 Delete 7.2.1.13:Subclause 7.2.1.13 does not apply.7.2.1.14DV D2 Delete 7.2.1.14:Subclause 7.2.1.14 does not apply.7.2.1.15DV D2 Delete 7.2.1.15:Subclause 7.2.1.15 does not apply.MARCH 28, 2014NATIONAL DIFFERENCES FO
44、R UL UL 60947-5-28UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM UL7.2.2DV D2 Modification Subclause 7.2.2 of Part 1 applies with the following addition:The temperature for an accessible surface of an enclosure is able to be exceeding whenprovi
45、ded with the marking “WARNING HOT SURFACE RISK OF BURN”. In Canada, theequivalent French wording is as follows: “AVERTISSEMENT SURFACE CHAUDE RISQUE DE BRLURE”.7.2.4.1DV D2 Modification by adding the following:Devices shall be rated in accordance with the requirements of 7.2.4.1DV of Annex 101.DVB,R
46、eference No. 3. As an option, the switching elements may also be tested in accordancewith the requirements in 7.2.4.1.7.2.5DV D2 Delete 7.2.5:Subclause 7.2.5 does not apply.7.2.6DV D2 Delete 7.2.6:Subclause 7.2.6 does not apply.7.3DV D2 Delete 7.3:Subclause 7.3 does not apply.7.4DV D2 Delete 7.4:Sub
47、clause 7.4 does not apply.8.1.2DV.1 D2 Modification of 8.1.2 to add the following tests:l) Strain relief (101.DVA.1.7.5).m) Breakdown of component (7.2DV of Part 1).n) Printed wiring board abnormal operation (8.101DV).8.1.2DV.2 D2 Modification of 8.1.2 to omit the following tests:Tests d) and g) thr
48、ough k) do not apply.8.1.3DV D2 Delete 8.1.3:Subclause 8.1.3 does not apply.8.1.4DV D2 Delete 8.1.4:Subclause 8.1.4 does not apply.8.2DV D2 Modify 8.2 by adding the following:Enclosure construction and performance requirements are defined in Annex 101.DVB,Table 101.DVB, Reference No.5.MARCH 28, 2014
49、 NATIONAL DIFFERENCES FOR UL UL 60947-5-2 9UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM UL8.3.1DV D2 Modify by replacing 8.3.1 with the following:For the U.S., the only sequences that apply are described in Table 8.3.1DV.1.Table 8.3.1DV.1 Test SequencesStandard reference section Test Sample Numbera12Sequence Sequence8.3.3.3 Temperature 17.2.1.2 Overvoltage andUndervoltage28.3.3.5 Overload 18.3.3.5 Endurance 28.3.3.4 Dielectric VoltageWithstand33aAll or any combination of sequences may be co
