ASTM B47
Standard Specification for Copper Trolley Wire
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About This Item
ASTM B47 is the ASTM standard for Copper Trolley Wire, providing a technical reference for the material used in trolley power systems. It helps define the expectations for wire intended to carry electrical current in overhead transit applications, supporting consistent product quality and reliable procurement. By setting a shared specification framework, the standard gives manufacturers, purchasers, and engineers a common basis for evaluating copper trolley wire against recognized requirements.
Purpose of ASTM B47
The purpose of the Standard Specification for Copper Trolley Wire is to establish clear requirements for this specialized copper product so it can be specified and supplied with greater consistency. As an ASTM standard, ASTM B47 is used to guide product evaluation, quality control, and acceptance decisions for trolley wire. It is especially relevant where electrical performance, material uniformity, and dependable installation are important to the intended use of the wire.
Common use cases of ASTM B47
This specification is commonly used when procuring or reviewing copper trolley wire for overhead electric traction systems and related power delivery applications. It may be referenced by transit operators, infrastructure suppliers, and material specifiers who need a recognized document for ordering and verifying wire compliance. ASTM B47 is also useful during inspection and testing workflows where copper trolley wire must be checked against an agreed technical standard before installation or shipment.
Why ASTM B47 matters
ASTM B47 matters because it supports consistency in a product category where electrical reliability and material quality are important. Using the standard can reduce ambiguity in purchasing, help align testing and acceptance practices, and improve confidence that supplied wire matches the intended specification. For projects involving trolley systems, ASTM B47 also helps limit risk by giving buyers and suppliers a common reference for compliance and product evaluation.
- Copper trolley wire specification
- Overhead traction applications
- Material acceptance and quality control
- Procurement and compliance reference
- Electrical performance consistency
- Publication Date: 2024-10-29
- Publisher: ASTM
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