
【国外标准】 Standard Specification for Zinc-Coated (Galvanized) Steel Core Wire for Use in Overhead Electrical Conductors
本网站 发布时间:
2024-02-28
开通会员免费在线看70000余条国内标准,赠送文本下载次数,单本最低仅合13.3元!还可享标准出版进度查询、定制跟踪推送、标准查新等超多特权!  
查看详情>>

适用范围:
This specification covers round, zinc-coated (galvanized), steel core wire with three classes of zinc coating used for mechanical reinforcement in the manufacture of aluminum conductors, steel-reinforced (ACSR). The wire is furnished in three classes of coating, namely: Class A, Class B, and Class C. The base metal shall be steel produced by the open-hearth, electric-furnace, or basic-oxygen process. The wire shall be cold drawn and coated with zinc to produce the desired properties and the the slab zinc used for coating shall be high-grade or better. The steel shall conform to the chemical composition requirements prescribed for carbon, manganese, phosphorus, sulfur, and silicon, as determined by chemical analysis. The following tests shall be performed: (1) tensile test to determine the mechanical properties such as ultimate tensile strength, elongation, and stress at extension, (2) wrap test, (3) coating test to determine conformity to the specified diameter and area density requirements, and (4) coating adherence test. Requirements for joints which may be made by electric butt-weld or flash-welding are detailed. The density and resistivity of galvanized steel wire are prescribed for the purposes of calculating mass per unit length, cross-sections, and so forth.1.1 This specification covers round, zinc-coated, steel core wire with two classes of zinc coating for use in overhead electrical conductors.1.2 This specification covers wire of diameter from 0.0500 to 0.1900 in. or 1.27 to 4.82 mm, inclusive.1.3 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
标准号:
ASTM B498/B498M-22
标准名称:
Standard Specification for Zinc-Coated (Galvanized) Steel Core Wire for Use in Overhead Electrical Conductors
英文名称:
Standard Specification for Zinc-Coated (Galvanized) Steel Core Wire for Use in Overhead Electrical Conductors标准状态:
Active-
发布日期:
-
实施日期:
出版语种:
- 推荐标准
- ASTM D4399-05(2023) Standard Test Method for Measuring Electrical Conductivity of Electrocoat Baths
- ASTM D4404-18 Standard Test Method for Determination of Pore Volume and Pore Volume Distribution of Soil and Rock by Mercury Intrusion Porosimetry
- ASTM D4414-95(2020) Standard Practice for Measurement of Wet Film Thickness by Notch Gages
- ASTM D4416-09(2023) Standard Specification for Acrylic Acid
- ASTM D4417-21 Standard Test Methods for Field Measurement of Surface Profile of Blast Cleaned Steel
- ASTM D4418-22 Standard Practice for Receipt, Storage, and Handling of Fuels for Gas Turbines
- ASTM D4422-19 Standard Test Method for Ash in Analysis of Petroleum Coke
- ASTM D4426-01(2021) Standard Test Method for Determination of Percent Nonvolatile Content of Liquid Phenolic Resins Used for Wood Laminating
- ASTM D4437/D4437M-16(2023) Standard Practice for Nondestructive Testing (NDT) for Determining the Integrity of Seams Used in Joining Flexible Polymeric Sheet Geomembranes
- ASTM D4439-23b Standard Terminology for Geosynthetics
- ASTM D444-88(2020) Standard Test Methods for Chemical Analysis of Zinc Yellow Pigment (Zinc Chromate Yellow)
- ASTM D4440-23 Standard Test Method for Plastics: Dynamic Mechanical Properties Melt Rheology
- ASTM D4441-20 Standard Specification for Aqueous Dispersions of Polytetrafluoroethylene
- ASTM D4444-13(2018) Standard Test Method for Laboratory Standardization and Calibration of Hand-Held Moisture Meters
- ASTM D4445-23 Standard Test Method for Fungicides for Controlling Sapstain and Mold on Unseasoned Lumber (Laboratory Method)