IEEE 1835-2014 en Atmospheric (Above Grade) Corrosion Control of Existing Electric Transmission Distribution and Substation Structures by Coating Systems《现有输电、配.pdf

1、 NACE International and IEEE Joint Standard Practice for Atmospheric (Above Grade) Corrosion Control of Existing Electric Transmission, Distribution, and Substation Structures by Coating Systems Approved 2014-12-10 (IEEE) 2015-01-28 (NACE) NACE International 15835 Park Ten Place Houston, Texas 77084

2、5145 +1 281-228-6200 IEEE 3 Park Ave., 17th Floor New York, NY 10016-5997 +1 212-419-7900 2015, NACE International and Institute of Electrical and Electronics Engineers (IEEE) NACESP0315-2015/IEEEStd1835-2014NACE SP0315-2015/IEEE Std 1835-2014 NACE SP0315-2015/IEEE Std 1835-2014 NACE International

3、and IEEE NACE International and IEEE Joint Standard Practice for Atmospheric (Above Grade) Corrosion Control of Existing Electric Transmission, Distribution, and Substation Structures by Coating Systems Administered by NACE Specific Technology Group (STG) 41, “Electric Utility Generation, Transmissi

4、on, and Distribution Approved 2015-01-28 NACE Board of Directors Sponsor Transmission and Distribution (PE/T (2) assess the level of risk to the structure in terms of corrosion attack and degradation to the existing coating system; (3) make informed decisions based on those findings as to whether co

5、ating repair is needed, and if so, to what extent; and (4) apply repair coatings to the structure if applicable. This standard applies to the repair of above-grade atmospheric coatings and serves as a resource for preparing specifications to achieve the successful coating of utility structures. Keyw

6、ords: above grade, acrylics, alkyds, atmospheric, carbon steel, coatings, coating systems, coating repair systems, corrosion, corrosion control, distribution, electric, epoxy esters, galvanized steel, IEEE 1835, long-oil zincs, silicone alkyds, single-component steel, SP0315, substation, transmissio

7、n NACE International 15835 Park Ten Place Houston, Texas 77084-5145 +1 281-228-6200 IEEE 3 Park Ave., 17th Floor New York, NY 10016-5997 +1 212-419-7900 Copyright 2015 by NACE International and Institute of Electrical and Electronics Engineers (IEEE) NACE PDF/PRINT: ISBN 1-57590-309-1 Item No. 21188

8、SG/21188 IEEE PDF: ISBN 978-0-7381-9446-2 STD20051 No part of this publication may be reproduced in any form, in an electronic retrieval system or otherwise, without the prior written permission of the publisher. NACE SP0315-2015/IEEE Std 1835-2014 NACE International and IEEE This NACE Internationa

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11、r product covered by letters patent, or as indemnifying or protecting anyone against liability for infringement of letters patent. This standard represents minimum requirements and should in no way be interpreted as a restriction on the use of better procedures or materials. Neither is this standard

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18、ng the organizations at the addresses below: Comments and recommendations on standards, and requests for interpretations should be addressed to: NACE International 15835 Park Ten Place Houston, Texas 77084-5145 +1 281-228-6200 Secretary, IEEE-SA Standards Board 445 Hoes Lane Piscataway, NJ 08854 USA

19、 2015, NACE International and Institute of Electrical and Electronics Engineers (IEEE) IMPORTANT NOTICE: This standard is not intended to ensure safety, security, health, or environmental protection in all circumstances. Implementers of the standard are responsible for determining appropriate safety

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21、 Notice” or “Important Notices and Disclaimers Concerning IEEE Documents.” They can also be obtained on request from IEEE or viewed at http:/standards.ieee.org/IPR/disclaimers.html. NACE SP0315-2015/IEEE Std 1835-2014 NACE International and IEEE NACE SP0315-2015/IEEE Std 1835-2014 NACE International

22、 and IEEE i _ Foreword Industries are constantly striving to obtain the maximum use of their infrastructures. The electrical utility industry (utility) is no different. Their transmission, distribution, and substation structures (utility support structures) are often pushed to the limits of their de

23、signed service life. All types of steel, including galvanized, corrode or degrade at some point when exposed to the environment. Utility support structures are coated to protect them from atmospheric corrosion, improve the cosmetic appearance, and to comply with regulatory requirements from the Fede

24、ral Aviation Administration (FAA),(1)Federal Communication Commission (FCC),(2)U.S. Army Corps of Engineers (The Corps),(3)or other applicable regulations. Properly engineered and implemented maintenance coating programs can protect from the detrimental effects of corrosion, extending the service li

25、fe of the structures. This standard was prepared to assist personnel responsible for maintenance painting of above-grade electrical support structures for electric utilities and large industrial facilities. This standard was prepared in 2015 by NACE/IEEE Joint Task Group (TG) 395, “Atmospheric (Abov

26、e-Grade) Corrosion Control of Transmission, Distribution, and Substation Structures by Coating Systems,” which is administered by Specific Technology Group (STG) 41, “Electric Utility Generation, Transmission, and Distribution,” and is sponsored by STG 03, “Coatings and Linings, ProtectiveImmersion

27、and Buried Service,” and STG 04, “Coatings and Linings, ProtectiveSurface Preparation.” The task group included members of IEEE. It is published by NACE under the auspices of STG 41, and by IEEEs corrosion working group: Power and Energy Society/Transmission and Distribution (PE/T (2) assess the lev

28、el of risk to the structure in terms of corrosion attack and degradation to the existing coating system; (3) make informed decisions based on those findings as to whether coating repair is needed, and if so, to what extent; and (4) apply repair coatings to the structure if applicable. This standard

29、applies to the repair of above-grade atmospheric coatings. For the purposes of this standard, the atmospheric area to be coated generally comprises of that portion of the utility support structure above the transition zone, which is that portion of the coating exposed up to 600 mm (24 in) above grad

30、e. 1.1.1 This standard is limited to the above-grade and atmospheric portions of utility support structures. It does not address below-grade coating repair within and below the transition zone. This standard does not address foundations or guy anchoring systems. This standard does not cover the coat

31、ing of aluminum, weathering steel, concrete, or any material other than steel. Likewise, it does not cover the coating of nonsupport structures such as fencing, buildings, transformers, or other miscellaneous components within the transmission, distribution, and substation systems. This standard doe

32、s not cover new construction, transition zone, below-grade, or water immersion. These areas of concern are addressed specifically in other NACE/IEEE standards. This standard does not address mechanical or structural damage, mechanical or structural repairs, or structural integrity. 1.2 Purpose: This

33、 standard serves as a resource for preparing specifications to achieve the successful coating of utility structures. _ Section 2: General 2.1 Special considerations shall be given to the application of atmospheric coating near the ground line area or where below-grade coatings are present. The atmos

34、pheric and below-grade coating systems shall be compatible with each other as they often overlap. 2.1.1 This standard refers to industry standards from ASTM International (ASTM),(4) NACE, and the Society for Protective Coatings (SSPC).(5) In some cases these organizations have developed equivalent s

35、tandards for a test method specified in this standard. It is not the intention of this standard to specify one organizations standard over another when equivalent standards are available. Where applicable, equivalent standards may be interchanged as deemed appropriate. 2.1.2 This standard is intende

36、d for use by owners, qualified applicators, field repair technicians, subcontractors, and inspectors. 2.1.3 This standard is intended to supplement the coating manufacturers printed instructions and literature. 2.2 Before any of the guidelines of this standard are implemented, the inspection, assess

37、ment, and repair process shall be defined and agreed upon in advance by the owner and all parties involved. Acceptance and rejection criteria, in addition to the methods and standards used to make determinations, shall be established before commencement of work. 2.3 A plan of action that identifies

38、priorities, objectives, and expectations for each aspect of the program shall also be developed. Typical considerations vary, but should include topics such as: 2.3.1 Project management (a) Planning, scheduling, logistics, documentation, and reporting; (b) Regulations, ordinances, permits, and maint

39、enance of traffic (MOT); (c) Labor, skills, and qualification of personnel; (d) Safety, health, and environmental regulations; (e) Quality control; and (f) Budgeting. (4)ASTM International (ASTM), 100 Barr Harbor Dr., West Conshohocken, PA 19428-2959. (5)The Society for Protective Coatings (SSPC), 4

40、0 24th Street 6th Floor, Pittsburgh, PA 15222-4656. NACE SP0315-2015/IEEE Std 1835-2014 2 NACE International and IEEE 2.3.2 Inspection, testing, and assessment procedures (a) The use of recognized standards and work protocol; (b) Acceptance and rejection criteria; (c) Methods of measurements; and (d

41、) Equipment, tools, and calibration. 2.3.3 Selection and application of repair materials (a) Performance specifications and expectations; (b) Materials specifications and application parameters; (c) Substrate type and condition; (d) Surface preparation requirements; (e) Repair coating system (e.g.,

42、ease of repair, compatibility with existing coating system and material substrate, cure time, pot life, and backfill); and (f) Environment and service condition considerations. 2.4 All of the above are key elements that can impact the overall success of a repair coating project. A preproject meeting

43、 that involves all concerned parties provides a means to determine the scope of work and expectation for deliverables. Good communication and an understanding of the priorities and objectives before implementing a coating repair program promote quality workmanship and long-term coating performance.

44、 Section 3: Safety 3.1 All utilities have written procedures and policies designed to address the inherent dangers associated with working on electric transmission, distribution, and substation support structures. All parties involved shall review the applicable safety policies and procedures befor

45、e the commencement of work. All personnel shall review and understand these procedures to ensure they are familiar with the required safety practices. All work conducted on electric utility support structures shall be in compliance with federal, state, and local regulatory requirements. _ Section 4:

46、 Inspection and Assessment 4.1 Determining the best time to recoat (paint) is one of the most critical factors to establishing a long-term program for economically maintaining electric utility support structures. There is no set rule that governs the anticipated service life of the existing coating

47、or galvanizing. 4.2 A set of parameters must be identified and assigned for the selection of the structures within the utilitys system to be included in the coating maintenance program. Factors to consider include: (a) Condition of existing coating; (b) History of coatings failures and corrosion; (c

48、) Maintenance history; (d) Age of the structures; (e) Criticality of the line; (f) Environmental exposure; (g) Regulatory requirements; (h) Corrosion of the steel structure that may cause safety or environmental concerns; and (i) Other factors specific to the utility. 4.3 Once the structures have been selected for maintenance, a visual inspection is the most common means of determining when to apply a coating or recoat the structures. A thorough visual inspection of the existing coating system shall be performed via ladders, stairs, and scaffolding, or from an aerial position. 4.4