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1、Subject 514D 333 Pfi ngsten Road Northbrook, IL 60062 October 14, 2002 TO:Standards Technical Panel (STP) for Cover Plates for Flush-Mounted Wiring Devices, STP 514D, Subscribers to ULs Standards Service for Cover Plates for Flush-Mounted Wiring Devices SUBJECT:Comments and Substantive Changes Recei
2、ved on the ANSI Canvass of and Proposed Requirements for the First Edition of the Standard for Cover Plates for Flush-Mounted Wiring Devices, UL 514D SUMMARY OF TOPICS This bulletin proposes the following changes in requirements: 1) Revision of Clauses 4.2.1.1 and 4.3.1.1 to clarify test receptacle
3、dimension requirements. 2) Revision of Clause 5.2.2.2.1 to correct the standard designation for a reference to a CSA Standard. 3) Revision to Clauses 5.1.2.3.1 and 5.3.5.1 to change the reference to ASTM G23 to ASTM G151 and ASTM G153. 4) Revision to Clause 4.2.2.1.1 to address corrosion protection
4、requirements and to delete the term “Exception” in the text of the requirement. 5) Revisions to Clauses 4.2.2.2, 4.2.2.2.1, 4.2.2.2.2, 4.2.2.3, 5.1.1.9, and Table 2 to delete references to cadmium plating or coating. 6) Revision to Clause 3.2.1 for editorial items and to align with changes proposed
5、as a result of the July 24, 2001 ANSI canvass. COMMENTS DUE: November 11, 2002 The attached comment matrix (Appendix A) provides the comment dispositions from the July 24, 2001 canvass of UL 514D. The ballots with extended due dates were due to the Secretary by December 14, 2001 (extended from Octob
6、er 24, 2001). The matrix contains all of the comments that were received. Attached as Appendix B for your review are proposed revisions based on comments received on the ANSI canvass of UL 514D. Attached as Appendix D is the impact statement and proposed effective date. Questions regarding interpret
7、ation of requirements should be directed to the responsible UL staff. Please see Appendix E of this bulletin regarding designated responsibility for the subject product categories. Copyright Underwriters Laboratories Inc. Provided by IHS under license with ULLicensee=IHS Employees/1111111001, User=W
8、ing, Bernie Not for Resale, 06/18/2007 22:37:20 MDTNo reproduction or networking permitted without license from IHS -,-,- UL apologizes for the delay in providing the responses to comments received. Because UL 514D is a binational standard, extra time was needed to coordinate input received from the
9、 Canadian Standards Organization and the CANENA Technical Harmonization Subcommittee 23BC-5, Wallplates, for drafting the responses. If you wish to change your vote in light of the dispositions/actions or the proposed changes, please respond to us in writing by November 11, 2002. If we do not hear f
10、rom you by this date, your original vote will be maintained. UL has determined that consensus has been achieved regarding the ANSI approval of the proposed revisions to UL 514D. If the STP concurs with the actions/dispositions, UL plans to adopt the revised version of UL 514D as an ANSI standard. Yo
11、u have the right to appeal this action on a procedural basis through ULs Appeals Process. If you wish to appeal, please respond by November 4, 2002 Please note only appeals based on procedural issues will be heard, technical issues should be resolved at the consensus body level. Guidelines on how to
12、 register an appeal can be obtained at http:/ or by contacting the STP Secretary. UL appreciates the time and effort you have put forth to review this standard, and look forward to your continued participation in this UL/ANSI standard activity. UNDERWRITERS LABORATORIES INC. BETH NORTHCOTT Secretary
13、 for STP 514D Engineering Project Handler Standards Department Phone: (847) 664-3198 Fax: (847) 313-3198 E-mail: Elizabeth.N http:/ REVIEWED BY: ANTHONY P. ZAGONE Chair for STP 514D Manager CAS 3013XNBK Phone: (847) 664-3222 Fax: (847) 509-6237 E-mail: Anthony.P.Z SR:DES OCTOBER 14, 2002SUBJECT 514D
14、-2- Copyright Underwriters Laboratories Inc. Provided by IHS under license with ULLicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 06/18/2007 22:37:20 MDTNo reproduction or networking permitted without license from IHS -,-,- APPENDIX A COMMENT MATRIX The Table below provides the
15、comment dispositions from the Ballot of BSR/UL 514D, dated July 24, 2001. The Standard for Cover Plates for Flush-Mounted Wiring Devices. The rows in the comment resolution matrix can be defi ned as follows: CommenterName of person submitting comment. Paragraph / Text Reference Indicates the specifi
16、 c reference for the comment. CommentThis comment matrix presents the verbatim text of the comment. Suggested Revision By Commenter The proposed revision corresponding to the comment received. ResponseRationale of the action/disposition after reviewing the comment. Action/DispositionThe recommended
17、decision to the comment. Topic 1 Clarifi cation Of Test Receptacle Dimension Requirements Commenter Louis Closson Paragraph / Text Reference Clauses 3.2, 4.2.1.1, and 4.3.1.1 OCTOBER 14, 2002SUBJECT 514D-A1- Table Continued on Next Page Copyright Underwriters Laboratories Inc. Provided by IHS under
18、license with ULLicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 06/18/2007 22:37:20 MDTNo reproduction or networking permitted without license from IHS -,-,- Table Continued Topic 1 Clarifi cation Of Test Receptacle Dimension Requirements Comment Section 4 of the standard specifi
19、 es requirements for dimensional fi t of mating devices but does not specify the applicable standard(s) for the mating devices. In both Paragraphs 4.2.1.1 and 4.3.1.1 the cover plate when assembled with a receptacle shall result in the face of the receptacle meeting specifi c requirements. In Paragr
20、aph 4.2.1.1 the face of the receptacle shall project a minimum of 0.38 mm outside the outer plane of the opening. In Paragraph 4.3.1.1 the face of the receptacle shall be fl ush with or project from the outer plane of the cover plate opening. The specifi c standard or standards that specify the dime
21、nsional requirements for the mating devices is not stated. Concern: Section 3.2 of UL 514D references supporting publications, such as ANSI/NEMA WD6. But, is it the only standard that applies? Reference needs to be made clear as to which controlling standards(s) shall be used to determine compliance
22、 to each requirement. Example 1. Section 5.2.2.1 has repeated specifi c references to standards for the Hot-wire and Glow-wire test. How is this different to calling out the applicable standard for receptacles in section 3.2? Both UL 746A and CAN/CSA-C22.2 No. 0.17 are stated in section 3.2. I do no
23、t object to this, I prefer it. Stating the specifi c document eliminates any question the user may have as to the correct document to be used to comply with the intent of the standard. Recommendation: Where an additional standard(s) is needed to supplement the primary standard, specify the document
24、as part of the description of the requirement, as done in paragraphs 5.2.2.1.1 and 5.2.2.2.1. This will strengthen the requirement, eliminating error in selecting supporting documents. This would be consistent with the rest of the standard where specifi c standards are being stated to clarify the. S
25、uggested Revision By Commenter No specifi c revision suggested by commenter. Response To provide a uniform method of investigating coverplates and outlet box hoods in accordance with Clauses 4.2.1.1 and 4.3.1.1, the dimensions and confi guration of the receptacles used for the investigation need to
26、be standardized. Presently, receptacles that comply with the Standard for General Use Receptacles, Attachment Plugs, and Similar Wiring Devices, C22.2 No. 42 or the Standard for Attachment Plugs and Receptacles, UL 498 are used to determine compliance. Therefore, UL proposes to clarify Clauses 4.2.1
27、.1 and 4.3.1.1 by specifying that the receptacles used to determine compliance shall comply with UL 498 or C22.2 No. 42. UL also proposes to modify Clause 3.2, Reference Publications, to add a reference to UL 498 and C22.2 No. 42. Action/Disposition Proposed revision based on comment (see Appendix B
28、, Topics 1 or b) xenon-arc, Type BH, in accordance with ASTM G26. Test Method A, continuous exposure to light and intermittent exposure to water spray, with a programmed cycle of 120 min consisting of a 102 min light exposure and an 18 min exposure to water spray with light, shall be used. The appar
29、atus shall operate with a 6500 W, water-cooled xenon-arc lamp, borosilicate glass inner and outer optical fi lters, a spectral irradiance of 0.35 W/m2/nm at 340 nm and a black- panel temperature of 63 3C (145 5F). 5.3.5.1 A nonmetallic cover plate or outlet box hood or a nonmetallic component of a c
30、over plate or outlet box hood shall be exposed to ultraviolet light and water by using either of the following methods: a) twin enclosed carbon-arc, Type D, in accordance with ASTM G23 ASTM G151 and ASTM G153. Method 1, continuous exposure to light and intermittent exposure to water spray, with a pr
31、ogrammed cycle of 120 min consisting of a 102 min light exposure and an 18 min exposure to water spray with light, shall be used. The apparatus shall operate with a black-panel temperature of 63 3C (145 5F); or b) xenon-arc, Type B, in accordance with ASTM G26. Test Method A, continuous exposure to
32、light and intermittent exposure to water spray, with a programmed cycle of 120 min consisting of a 102 min light exposure and an 18 min exposure to water spray with light, shall be used. The apparatus shall operate with a 6500 W, water-cooled xenon-arc lamp, borosilicate glass inner and outer optica
33、l fi lters, a spectral irradiance of 0.35 W/m2/nm at 340 nm and a black- panel temperature of 63 3C (1455F). 4 PROPOSED REVISIONS TO ADDRESS CORROSION PROTECTION REQUIREMENTS AND DELETE THE TERM “EXCEPTION” IN THE TEXT OF THE REQUIREMENT RATIONALE See Topic No. 4 in Appendix A for the rationale addr
34、essing the revision of corrosion protection requirements. Because UL 514D is a binational standard (harmonized with C22.2 No. 42.1), it is subject to the standards drafting protocols stated in the Procedures for Harmonizing ANCE, CSA, UL Standards. The most recent procedures state that exceptions sh
35、all not be used in the requirements of a harmonized standard. Therefore, UL proposes to delete the term “Exception No. _” for the four Exceptions to Clause 4.2.2.1.1 to comply with the procedures. However, the text of the Exceptions are considered to be part of the requirement and will remain in the
36、 text of the standard. For clarity, UL proposes to add the text of Exception No. 4 to Clause 4.2.2.1.1 and renumber Exception Nos. 1 3 as Clauses 4.2.2.1.2 4.2.2.1.4. Exceptions included in other Clauses in UL 514D will be addressed as other revisions to the clause are proposed, or in the next new e
37、dition. PROPOSALS 4.2.2.1.1 All ferrous metal surfaces shall have corrosion protection. The thickness of the coating on screws and on interior surfaces not accessible to a 19.1 mm (0.75 in) diameter ball is not specifi ed. The presence of a coating shall be determined by visual inspection. OCTOBER 1
38、4, 2002SUBJECT 514D-B2- Copyright Underwriters Laboratories Inc. Provided by IHS under license with ULLicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 06/18/2007 22:37:20 MDTNo reproduction or networking permitted without license from IHS -,-,- Exception No. 1: Stainless steel is
39、 not required to be so protected. Exception No. 2: Cut edges and punched holes in a surface formed from galvanized stock are not required to be so protected. Exception No. 3: Spot or projection welds are not required to be protected, other than by a protective coating, as determined by visual inspec
40、tion. Exception No. 4: The thickness of the coating on screws and on interior surfaces not accessible to a 19.1 mm (0.75 in) diameter ball is not specifi ed. The presence of a coating shall be determined by visual inspection. 4.2.2.1.2 With reference to Clause 4.2.2.1.1, stainless steel having a chr
41、omium content of not less than 16 percent is not required to be so protected. 4.2.2.1.3 With reference to Clause 4.2.2.1.1, cut edges and punched holes in a surface formed from galvanized stock are not required to be so protected. 4.2.2.1.4 With reference to Clause 4.2.2.1.1, spot or projection weld
42、s are not required to be protected, other than by a protective coating, as determined by visual inspection. 5 PROPOSED REVISIONS TO DELETE REFERENCES TO CADMIUM PLATING AND COATING RATIONALE See Topic No. 5 in Appendix A. PROPOSALS 4.2.2.2 Zinc or cadmium coatings 4.2.2.2.1 A zinc or cadmium coating
43、 on an interior surface shall have an average thickness not less than 0.0038 mm (0.00015 in) and a minimum thickness not less than 0.0025 mm (0.00010 in). A zinc or cadmium coating on an exterior surface shall have an average thickness not less than 0.013 mm (0.0005 in) and a minimum thickness not l
44、ess than 0.0102 mm (0.0004 in). 4.2.2.2.2 The thickness of a zinc or cadmium coating shall be determined by the metallic coating thickness test in Clause 5.1.1 or by an equivalent nondestructive test method. When a test method other than the test in Clause 5.1.1 is used, the test in Clause 5.1.1 sha
45、ll be used whenever referee measurements are required. OCTOBER 14, 2002SUBJECT 514D-B3- Copyright Underwriters Laboratories Inc. Provided by IHS under license with ULLicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 06/18/2007 22:37:20 MDTNo reproduction or networking permitted wi
46、thout license from IHS -,-,- 4.2.2.3 Coatings other than zinc or cadmium 5.1.1.9 The average zinc or cadmium coating thickness shall be determined by averaging all readings on the three tested surfaces. Table 2 Coating thickness factors (See Clause 5.1.1.8.) Temperature, degreesThickness factors C(F
47、)Zinc platingsCadmium platings 21.1(70)0.9801.331 21.7(71)0.9901.340 22.2(72)1.0001.352 22.8(73)1.0101.362 23.3(74)1.0151.372 23.9(75)1.0251.383 24.4(76)1.0331.395 25.0(77)1.0421.405 25.6(78)1.0501.416 26.1(79)1.0601.427 26.7(80)1.0701.438 27.2(81)1.0801.450 27.8(82)1.0851.460 28.3(83)1.0951.470 28.
48、9(84)1.1001.480 29.4(85)1.1101.490 30.0(86)1.1201.501 30.6(87)1.1301.513 31.1(88)1.1411.524 31.7(89)1.1501.534 32.2(90)1.1601.546 6 PROPOSED EDITORIAL REVISIONS TO REFERENCE PUBLICATIONS CLAUSE AND REVISIONS TO ALIGN WITH CHANGES PROPOSED AS A RESULT OF COMMENTS RECEIVED DURING ANSI CANVASS RATIONALE UL standards that specify reference standards needed to comply with the requirements of the standard are required to have uniform wording addressing installation codes, reference standards, and the application of dated and undated references. Standardized wording is