ISA RP60 6-1984 Nameplates Labels and Tags for Control Centers《控制中心用标牌 标记和标签》.pdf

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1、Nameplates, Labels, and Tags for Control CentersApproved 28 February 1984ISARP60.61984RECOMMENDED PRACTICEISA The Instrumentation,Systems, andAutomation Society TMCopyright 1984by the Instrument Society of America. All rights reserved. Printed in the UnitedStates of America. No part of this publicat

2、ion may be reproduced, stored in a retrieval system, ortransmitted in any form or by any means (electronic, mechanical, photocopying, recording, orotherwise), without the prior written permission of the publisher.ISA67 Alexander DriveP.O. Box 12277Research Triangle Park, North Carolina 27709ISARP60.

3、61984, Nameplates, Labels, and Tags for Control CentersISBN 0-87664-813-8ISA-RP60.6-1984 3PrefaceThis preface is included for information purposes and is not a part of ISA-RP60.6-1984.This Recommended Practice has been prepared as a part of the service of ISA toward a goal of uniformity in the field

4、 of instrumentation. To be of real value, this document should not be static, but should be subject to periodic review. Toward this end, the Society welcomes all comments and criticisms, and asks that they be addressed to the Secretary, Standards and Practices Board, ISA, 67 Alexander Drive, P.O. Bo

5、x 12277, Research Triangle Park, NC 27709, Telephone (919) 549-8411, e-mail: standardsisa.org.The ISA Standards and Practices Department is aware of the growing need for attention to the metric system of units in general, and the International System of Units (SI) in particular, in the preparation o

6、f instrumentation standards. The Department is further aware of the benefits to U.S.A. users of ISA standards of incorporating suitable references to the SI (and the metric system) in their business and professional dealings with other countries. Toward this end, this Department will endeavor to int

7、roduce SI-acceptable metric units in all new and revised standards to the greatest extent possible. The Metric Practice Guide, which has been published by the Institute of Electrical and Electronic Engineers as ANSI/IEEE Std. 268-1982, and future revisions will be the reference guide for definitions

8、, symbols, abbreviations, and conversion factors.It is the policy of ISA to encourage and welcome the participation of all concerned individuals and interests in the development of ISA standards. Participation in the ISA standards-making process by an individual in no way constitutes endorsement by

9、the employer of that individual, of the ISA, or of any of the standards that ISA develops.The SP60 Committee is preparing a series of recommended practices on control centers. ISA-RP60.6 is the third of this series to be published. The published recommended practices and drafts in preparation are li

10、sted below:RECOMMENDED PRACTICESECTION TITLEdRP60.1* Control Center (C.C.) FacilitiesdRP60.2* C.C. Design Guide and TerminologydRP60.3* Human Engineering for Control CentersdRP60.4* Documentation for Control CentersdRP60.5* Control Center Graphic DisplaysRP60.6 Nameplates, Labels, and Tags for Contr

11、ol CentersdRP60.7* Control Center ConstructionRP60.8 Electrical Guide for Control Centers (published 1978)RP60.9 Piping Guide for Control Centers (published 1981)dRP60.10* Control Center Inspection and TestingdRP60.11* Crating, Shipping and Handling for C.C.*Draft Recommended Practice, for additiona

12、l information on the status of this document contact ISA Headquarters.4 ISA-RP60.6-1984The persons listed below served as active members of the ISA Control Centers Committee for the major share of its working period.NAME COMPANYH. R. Solk, Chairman ConsultantJ. M. Fertitta, Secretary The Foxboro Com

13、panyA. R. Alworth Shell Oil CompanyC. D. Armstrong Tennessee Valley AuthorityF. Aured Panels, Inc.B. W. Ball Brown & Root, Inc.R. W. Borut* The M. W. Kellogg CompanyC. Goding BIF Sanitrol, Unit of Gen. SignalT. P. Holland Johnson Controls, Inc.-Panel UnitJ. F. Jordon Monsanto CompanyJ. G. McFadden P

14、ublic Service Electric & GasR. Munz Mundix Control Systems, Inc.R. F. Rossbauer Fischer & PorterA. Stockmal ContravesM. J. Walsh Procon, Inc.R. L. Welch El Paso Natural Gas CompanyThe persons listed below served as corresponding members of the ISA Control Centers Committee for the major share of its

15、 working period:NAME COMPANYJ. Cerretani Detroit Edison CompanyN. L. Conger ConocoL. Corsetti Crawford & Russell, Inc.T. J. Crosby Robertshaw Controls CompanyC. R. Davis EngineerJ. M. Devenney RetiredF. L. Durfee Swanson Engineering & Manufacturing H. P. Fabisch Fluor Engineering & Constructors, Inc

16、.J. Farina Gismo Div. of Guarantee Electric CompanyH. L. Faul A-E Development CorporationM. E. Gunn Swanson Engineering & ManufacturingR. E. Hetzel Stauffer Chemical CompanyR. I. Hough Hough AssociatedJ. R. Jordon International Paper CompanyH. Kamerer Wilmington Steel Metal Ind. A. Kayser Consolidat

17、ed Controls CorporationJ. L. Kern Weyerhauser CompanyR. W. Kief Emanon CompanyA. L. Kress 3M CompanyR. A. Landthorn Panels,Inc.A. J. Langelier EngineerC. S. Lisser* Oak Ridge National LaboratoryS. F. Luna General Atomics Company*Chairman EmeritusISA-RP60.6-1984 5R. G. Marvin Dow Chemical CompanyA. P

18、. McCauley, Jr. Chagrin Valley Controls, Inc.W. B. Miller Moore Products CompanyC. W. Moehring BechtelD. P. Morrison BIF/General SignalR. L. Nickens Reynolds Metal CompanyF. W. Reichert EngineerI. Stubbs Panelmatic,Inc.J. F. Walker Honeywell, Inc.G. Walley The N/P CompanyS. J. Whitman Acco/Bristol D

19、ivisionW. T. Williams Instrumentation EngineerW. J. Wylupek Moore Products CompanyThis Recommended Practice was approved for publication by the ISA Standards and Practices Board in February 1984.NAME COMPANYW. Calder III, Chairman The Foxboro CompanyN. L. Conger ConocoB. Feikle Bailey Controls Compa

20、nyT. J. Harrison IBM CorporationH. S. Hopkins Westinghouse Electric Company J. L. Howard Boeing Aerospace CompanyR. T. Jones Philadelphia Electric CompanyR. Keller The Boeing CompanyO. P. Lovett, Jr. Isis CorporationE. C. Magison Honeywell, Inc.A. P. McCauley Chagrin Valley Controls, Inc.J. W. Mock

21、Bechtel CorporationE. M. Nesvig ERDCO Engineering CorporationR. Prescott Moore Products CompanyD. Rapley Stearns Catalytic CorporationW. C. Weidman Gilbert Commonwealth, Inc.K. A. Whitman Allied Chemical CorporationP. Bliss*B. A. Christensen*L. N. Combs*R. L. Galley*R. G. Marvin*W. B. Miller* Moore

22、Products CompanyG. Platt* Bechtel Power CorporationJ. R. Williams* Stearns Catalytic Corporation*Director EmeritusISA-RP60.6-1984 7Contents1 Purpose 92 Scope . 93 Functional definitions . 94 Identification 105 Types of identification 116 Materials 117 Methods of fabrication . 128 Methods of attachme

23、nt . 139 Typical locations . 14Appendix A Control center examples A-1 15Appendix A Nameplates (usable area) A-2. 16Appendix A Nameplate letter size and spacing guide A-3 . 17Appendix A Nameplate letter size and spacing guide A-3 (cont.) 18Appendix A Wire terminal identification A-4 19Appendix B Abbr

24、eviations. 20Appendix C Character heights 41Appendix D Gothic lettering examples . 42ISA-RP60.6-1984 91 PurposeThe purpose of this Recommended Practice is to assist the designer or engineer in choosing and specifying the method of identifying items mounted on a control center or associated with a co

25、ntrol center facility.2 ScopeThis Recommended Practice is intended to summarize identification methods and to suggest the uses of nameplates, labels, and tags. Examples are included for guidance in preparing drawings and specifications. (See Appendix A.) Since materials will determine the tools and

26、techniques used, savings may be realized by using the materials and symbols standardized by the control center manufacturer selectedprovided that the materials fully satisfy the application and purpose intended.3 Functional definitions3.1 Nameplate: Used to display basic information, including funct

27、ion.3.2 Label: Used to inform of detailed instructions about item identified.FRC-104OIL TO BURNER 4FLOWUNIT AND/OR FUNCTIONEXAMPLE:NOTICE AND/ORTECHNICAL INFORMATIONEXAMPLE:CAUTIONCONTAINS STATICSENSITIVECOMPONENTS10 ISA-RP60.6-19843.2.1 Tags: Used to display specific information about item identifi

28、ed.4 Identification4.1 The effectiveness of controls and displays depends upon identification. Therefore, this iden-tification should be positioned as close as is practical to its respective item. The location of the identification in relation to the item should be consistent throughout the control

29、center to minimize confusion for operation, maintenance, and testing.4.2 Identification lettering should be oriented horizontally and centered or left-justified. The min-imum spacing between words should be the width of the letter “E.“ The spacing between the bottom of a line of lettering and the to

30、p of the following line should be a minimum of 40 percent and a maximum of 66 percent of the letter height. (See Appendix A for recommended spacing.)4.3 Similar types of identification on controls and displays should have the same height letters with uniform stroke width. (See Appendix B for abbrevi

31、ations and Appendix C for letter height recommendations.)4.4 Letters should preferably be black or white on a sharply contrasting background, upper case (capital letters are preferred). Dark letters on light background will minimize illegibility from dirt buildup in the engraved letters. The condens

32、ed gothic style of letters is usually the easiest to read. (See Appendix D.)4.5 Background color may be used to emphasize separate but related functions. (See ISA-RP60.3 Human Engineering for Control Centers.) The most legible combination of letter color and back-ground color should be used in lieu

33、of using one letter color on all background colors.4.6 When manufacturers standards are not suitable, the material, type, and method of attachment of the identification should be specified.INSTRUMENT WIREOR LOOP NUMBEREXAMPLE:XFRC-104ISA-RP60.6-1984 115 Types of identification5.1 The type and method

34、 of identification should be standardized early in the design to ensure consistency.5.2 Nameplates are one of the most common types of identification and are used mostly on panels and displays. Nameplates are normally adjacent to the instruments to be identified. Nameplates may also be used in the b

35、ack of panels to aid assembly, maintenance, and troubleshooting.5.3 Labels made of flexible material may be used in all of the above situations and are especially useful on irregular surfaces (instrument bodies, etc.).5.4 Tags are suitable for identifying interconnecting piping and wiring. Tags may

36、be fastened with wire or plastic ties when other methods of attachment are not acceptable. (See Appendix A.)5.5 Terminal identification for wiring or tubing is necessary for installation, maintenance, and troubleshooting. See Table 1 for a summary of processes used in terminal identification.6 Mater

37、ials6.1 Most materials that can be cut or shaped can be used for identification purposes. Some of the most common materials used are metals, plastics, and laminated stocks. Nameplates are frequently made from laminated engraving stock.6.2 Metals are used in making nameplates and tags. Aluminum, bras

38、s, steel, tinplate, and stainless steel are commonly used in embossing, engraving, stamping, and photoetching processes. Metals can be painted many different colors with chemical-resistant, baked enamel or epoxy paints.6.3 Plastics are used in making nameplates, tags, and terminal identifications. A

39、 transparent plastic engraving stock, such as acrylic, rigid vinyl, and polycarbonate, is generally coated with paint on the back surface and engraved from the back side. The engraved area is then filled with a contrasting color paint.6.4 Laminated engraving stocks have a contrasting color center co

40、re. A wide range of colors are available. Using an engraving machine, the characters are transferred to the stock by routing out the top colored layer to expose the contrasting color core. Laminated engraving stocks are available in various thicknesses and may be cut to the final nameplate size from

41、 sheet stock.6.5 Heavy paper or fabric tags with handwritten or typed descriptions have uses as temporary identification if permanent methods are not available or desirable at the time of their installation.6.6 The choice of materials used for identification may depend on the environment of the serv

42、ice. For instance, ultraviolet radiation from direct sunlight and heat can cause certain types of plastics to deteriorate.12 ISA-RP60.6-19847 Methods of fabrication7.1 There are various acceptable methods of making nameplates, labels, and tags for identification of controls and displays, including t

43、he following processes:7.1.1 Etching is a process of engraving lines in plates by means of acid. Etchings can be made on copper, steel, and glass, with copper being the most frequently used material.7.1.2 Engraving is a method of carving words or designs on the surface of metal or plastics.7.1.3 Pai

44、nting is a process utilizing any kind of paint in various colors to cover almost any surface with designs and words.7.1.4 Stenciling is a process of reproducing designs or letters on most surfaces by passing a brush wet with ink or paint over a stencil. A stencil is a thin sheet of metal or other ma

45、terial with lines and dots cut into it to form a pattern.7.1.5 Silk screening is a means of printing with stencils on almost any surface. Almost any kind of ink or paint can be used in the process. Bolting cloth (stencil silk) is stretched across a frame, and a stencil pattern is applied to this sup

46、porting surface. A squeegee is used to force the ink or paint through the open areas of the stencil.7.1.6 Typing is a common method used to produce printed characters on paper or other material.7.1.7 Photo-etching is a photographic process of superimposing lines or designs, in color, perma-nently to

47、 anodized aluminum.7.1.8 Embossing is a process in which a raised design is stamped or pressed by mechanical means on the surface of metal, paper, or plastic.7.1.9 Stamping is the process of imprinting or making impressions by the use of a die or other stamping tools.7.2 Each of the above processes

48、has a certain cost vs. longevity ratio and should be selected on the basis of best serving the purpose desired.ISA-RP60.6-1984 13Table 1 Identification types8 Methods of attachment8.1 The most common methods of attachment are mechanical and adhesive.8.2 Mechanical methods of attachment of nameplates

49、, labels, and tags directly to the surface of an item by non-corrosive rivets, screws, brads, or clamps can be considered permanent. Wrap-around loops of chain, wire, and plastic ties can also be used for securing identification directly to the item to be identified.8.3 Adhesives are available to attach nameplates to clean, smooth surfaces. The same purpose may be served by using double-faced pressure-sensitive tape. The permanence of adhesives is dependent upon the conditions to which they are subjected. A hostile and changing environment is the natural enemy of the adhesi