Buy IEC Ed. International standard of resistance for copper from SAI Global. Find the most up-to-date version of IEC at Engineering International standard of resistance for copper – IEC Specifies values of the physical properties of annealed copper and how the conductivity of.
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What is a standard? Please help improve this article by adding citations to reliable iwc. In engineering applications, it is often most convenient to describe a wire in terms of its cross-section area, rather than its diameterbecause the cross section is directly proportional to its strength and weight, and inversely proportional to its resistance.
SRPS IEC 60028:2004
The cross-sectional area is also related to the maximum current that a wire can carry safely. Sustainable Development Goals and standardisation, how do they connect? Mechanical properties measurement – Room temperature tensile test of reacted Nb3Sn composite superconductors.
The current version is Third Edition  Among other things, it defines a set of standard wire cross-sectional areas:. The standard is now in your shopping cart. The nominal see below cross-sectional area for standard conductors including the following:. The main problem being that not all copper has the same resistivity value, 600228, for example, a 4mm 2 conductor from two different suppliers may have different resistance values.
Almost all characteristics of conductors, resistance, current carrying capacity etc.
However this document allows an easy reference whereby the standard conductor sizes and reference to physical dimensions are maintained but given an exact meaning in terms of the electrical characteristics of a conductor. This document and its precursors were created due to a need eic a standard definition of cable conductor size.
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Valid Buy this standard. This engineering-related article is a stub. Please note that the selected standard is invalid. This page was last edited on 16 Novemberat This article needs additional citations for verification. When you use our service you can be assured the latest editions and easy access.
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Message to your colleague. From Wikipedia, the free encyclopedia. Use British English Oxford spelling from December Articles needing additional references from October Ied articles needing additional references All stub articles. This document is one considered Fundamental in that it does not contain reference to any other standard. Read more about SIS Subscriptions. Specifies values of the physical properties of annealed copper and how the conductivity of commercial annealed copper can be calculated and expressed as a percentage of standard annealed copper.
Instead this document describes conductors by their nominal size, determined by resistance rather than physical dimensions.