IEC 60228: Difference between revisions

Content deleted Content added

Inline

Latest revision as of 09:13, 15 May 2024

IEC 60228 is the International Electrotechnical Commission (IEC)'s international standard on conductors of insulated cables. As of 2023^[update] the current version is Third Edition 2004-11^[1] Among other things, it defines a set of standard wire cross-sectional areas:

0.5 mm²
0.75 mm²
1 mm²
1.5 mm²
2.5 mm²
4 mm²
6 mm²
10 mm²
16 mm²
25 mm²
35 mm²
50 mm²
70 mm²
95 mm²
120 mm²
150 mm²
185 mm²
240 mm²
300 mm²
400 mm²
500 mm²
630 mm²
800 mm²
1000 mm²
1200 mm²
1400 mm²^{[note 1]}
1600 mm²
1800 mm²^{[note 1]}
2000 mm²
2500 mm²

Comparison of SWG (**red**), AWG (**blue**) and IEC 60228 (**black**) wire gauge sizes from 0.03 to 200 mm² to scale on a 1 mm grid – in the SVG file, hover over a size to highlight it

In engineering applications, it is often most convenient to describe a wire in terms of its cross-section area, rather than its diameter, because the cross section is directly proportional to its strength and weight, and inversely proportional to its resistance. The cross-sectional area is also related to the maximum current that a metallic wire can carry safely.

This document is one considered fundamental in that it does not contain reference to any other standard.

Description[edit]

The document describes several aspects of the conductors for electrical cables

Class[edit]

This refers to the flexibility and thermal effects i.e temperature of a conductor.

Class 1: Solid conductor
Class 2: Stranded conductor intended for fixed installation
Class 5: Flexible conductor
Class 6: Very Flexible conductor

Size[edit]

The nominal (see below) cross-sectional area for standard conductors including the following:

Class 2: Minimum number of strands required to make particular conductor size
Class 5 and 6: Maximum diameter of any component strand of the conductor

Resistance[edit]

The maximum permissible resistance per unit length (in ohms per kilometre – Ω/km) of each conductor size, class and type (both plain copper and metal coated)

Purpose of the document[edit]

This document and its precursors were created due to a need for a standard definition of cable conductor size. The main problem being that not all copper has the same resistivity value, so, for example, a 4 mm² conductor from two different suppliers may have different resistance values. Instead this document describes conductors by their nominal size, determined by resistance rather than physical dimensions. This is a key distinction as it makes a standardized definition of conductors based solely on their electrical characteristics.

Almost all characteristics of conductors, resistance, current carrying capacity etc. are dependent on the physical dimensions of the conductor. 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.

Footnotes[edit]

^ ^a ^b Non-preferred size

References[edit]

^ "IEC 60228:2004 - Conductors of insulated cables". 2004. Retrieved 2020-05-15.

External links[edit]

"IEC 60228" at International Electrotechnical Commission

This engineering-related article is a stub. You can help Wikipedia by expanding it.

[nps-2] Non-preferred size

[1] "IEC 60228:2004 - Conductors of insulated cables". 2004. Retrieved 2020-05-15.

[1]

[note 1]

@@ Line 1: / Line 1: @@
+{{Short description|Standard for conductors of insulated cables}}
-{{Use British (Oxford) English|date=December 2011}}
+{{Use British English Oxford spelling|date=December 2011}}
-{{Refimprove|date=October 2014}}
+{{More citations needed|date=October 2014}}
-'''IEC 60228''' is the [[International Electrotechnical Commission]]'s [[international standard]] on ''conductors of insulated cables''. The current version is Third Edition 2004-11 <ref>http://webstore.iec.ch/preview/info_iec60228%7Bed3.0%7Den_d.pdf</ref>
+'''IEC 60228''' is the [[International Electrotechnical Commission]] (IEC)'s [[international standard]] on ''conductors of insulated cables''. {{As of|2023}} the current version is Third Edition 2004-11<ref>{{cite web|url=https://webstore.iec.ch/publication/1065|date=2004|access-date=2020-05-15|title=IEC 60228:2004 - Conductors of insulated cables}}</ref>
 Among other things, it defines a set of standard wire cross-sectional areas:
+{{flatlist|indent=1|
+* 0.5&nbsp;mm<sup>2</sup>
+* 0.75&nbsp;mm<sup>2</sup>
+* 1&nbsp;mm<sup>2</sup>
+* 1.5&nbsp;mm<sup>2</sup>
+* 2.5&nbsp;mm<sup>2</sup>
+* 4&nbsp;mm<sup>2</sup>
+* 6&nbsp;mm<sup>2</sup>
+* 10&nbsp;mm<sup>2</sup>
+* 16&nbsp;mm<sup>2</sup>
+* 25&nbsp;mm<sup>2</sup>
+* 35&nbsp;mm<sup>2</sup>
+* 50&nbsp;mm<sup>2</sup>
+* 70&nbsp;mm<sup>2</sup>
+* 95&nbsp;mm<sup>2</sup>
+* 120&nbsp;mm<sup>2</sup>
+* 150&nbsp;mm<sup>2</sup>
+* 185&nbsp;mm<sup>2</sup>
+* 240&nbsp;mm<sup>2</sup>
+* 300&nbsp;mm<sup>2</sup>
+* 400&nbsp;mm<sup>2</sup>
+* 500&nbsp;mm<sup>2</sup>
+* 630&nbsp;mm<sup>2</sup>
+* 800&nbsp;mm<sup>2</sup>
+* 1000&nbsp;mm<sup>2</sup>
+* 1200&nbsp;mm<sup>2</sup>
+* 1400&nbsp;mm<sup>2</sup><ref group=note name=nps>Non-preferred size</ref>
+* 1600&nbsp;mm<sup>2</sup>
+* 1800&nbsp;mm<sup>2</sup><ref group=note name=nps/>
+* 2000&nbsp;mm<sup>2</sup>
+* 2500&nbsp;mm<sup>2</sup>
+}}
+{{comparison_wire_gauge_sizes.svg}}
+In engineering applications, it is often most convenient to describe a [[wire]] in terms of its cross-section area, rather than its [[diameter]], because the cross section is directly proportional to its strength and weight, and inversely proportional to its [[Electrical resistance|resistance]]. The cross-sectional area is also related to the maximum [[current (electricity)|current]] that a metallic wire can carry safely.
-{| class="wikitable"
-|- align=center bgcolor="#CCCCCC"
-!colspan=10 |International standard wire sizes (IEC 60228)
-|- align=right
-| 0.5&nbsp;mm<sup>2</sup>||0.75&nbsp;mm<sup>2</sup>||1&nbsp;mm<sup>2</sup>|| 1.5&nbsp;mm<sup>2</sup>||2.5&nbsp;mm<sup>2</sup>||4&nbsp;mm<sup>2</sup>
-|- align=right
-| 6&nbsp;mm<sup>2</sup>||10&nbsp;mm<sup>2</sup>|| 16&nbsp;mm<sup>2</sup>|| 25&nbsp;mm<sup>2</sup>||35&nbsp;mm<sup>2</sup>||50&nbsp;mm<sup>2</sup>
-|- align=right
-| 70&nbsp;mm<sup>2</sup>||95&nbsp;mm<sup>2</sup>||120&nbsp;mm<sup>2</sup>||150&nbsp;mm<sup>2</sup>|| 185&nbsp;mm<sup>2</sup>||240&nbsp;mm<sup>2</sup>
-|- align=right
-|300&nbsp;mm<sup>2</sup>||400&nbsp;mm<sup>2</sup>|| 500&nbsp;mm<sup>2</sup>|| 630&nbsp;mm<sup>2</sup>||800&nbsp;mm<sup>2</sup>|| 1000&nbsp;mm<sup>2</sup>
-|}
+This document is one considered ''fundamental'' in that it does not contain reference to any other standard.
-In engineering applications, it is often most convenient to describe a [[wire]] in terms of its cross-section area, rather than its [[diameter]], because the cross section is directly proportional to its strength and weight, and inversely proportional to its [[Electrical resistance|resistance]]. The cross-sectional area is also related to the maximum [[current (electricity)|current]] that a wire can carry safely.
-This document is one considered ''Fundamental'' in that it does not contain reference to any other standard. This document is equivalent to IEC 60228 and EN 60228.
 ==Description==
@@ Line 25: / Line 47: @@
 ===Class===
-This refers to the flexibility of a conductor
+This refers to the flexibility and thermal effects i.e temperature of a conductor.
 * Class 1: Solid conductor
 * Class 2: Stranded conductor intended for fixed installation
@@ Line 32: / Line 55: @@
 ===Size===
-The ''nominal''(see below) cross-sectional area for standard conductors including the following:
+The ''nominal'' (see below) cross-sectional area for standard conductors including the following:
 * Class 2: Minimum number of strands required to make particular conductor size
-* Class 5&6: Maximum diameter of any component strand of the conductor
+* Class 5 and 6: Maximum diameter of any component strand of the conductor
 ===Resistance===
-The required maximum resistance (in ohms/km)of each conductor size, class and type (both plain copper and metal coated)
+The maximum permissible resistance per unit length (in ohms per kilometre – Ω/km) of each conductor size, class and type (both plain copper and metal coated)
 ==Purpose of the document==
-This document and its precursors were created due to a need for a standard definition of cable conductor size. The main problem being that not all copper has the same resistivity value, so, for example, a 4mm<sup>2</sup> conductor from two different suppliers may have different resistance values. Instead this document describes conductors by their ''nominal'' size.
+This document and its precursors were created due to a need for a standard definition of cable conductor size. The main problem being that not all copper has the same resistivity value, so, for example, a 4&nbsp;mm<sup>2</sup> conductor from two different suppliers may have different resistance values. Instead this document describes conductors by their ''nominal'' size, determined by resistance rather than physical dimensions. This is a key distinction as it makes a standardized definition of conductors based solely on their electrical characteristics.
+Almost all characteristics of conductors, resistance, current carrying capacity etc. are dependent on the physical dimensions of the conductor. 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.
-===Nominal size===
-This is the size of a conductor determined by its resistance rather than its physical dimensions. This is a key distinction as it makes a standardized definition of conductors based solely on their electrical characteristics.
+==Footnotes==
-Almost all characteristics of conductors, resistance, current carrying capacity etc. are independent of the physical dimensions of the conductor. 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.
+{{reflist|group=note}}
 ==See also==
+*
-* [[American wire gauge]]
+*[[Circular mil]], Unusual unit used as the North American Electrical industry standard for wires larger than 4/0.
-* [[Standard wire gauge|British Standard Gauge]]
+*[[American wire gauge]] (AWG), used primarily in the US and Canada
-* [[Media:Gauge Chart.pdf|Wire gauge comparison chart]]
+*[[Standard wire gauge]] (SWG), the British imperial standard BS3737, superseded by the metric.
+*[[Stubs Iron Wire Gauge]]
+*[[Jewelry wire gauge]]
+*[[Body jewelry sizes]]
+*[[Electrical wiring]]
+*[[Number 8 wire]], a term used in the New Zealand vernacular
 ==References==
 {{Reflist}}
+== External links ==
+{{List of IEC standards}}
+* {{IEC|60228}}
 [[Category:IEC standards|#60228]]
 [[Category:Wire gauges]]
+{{engineering-stub}}

v t e IEC standards
IEC	60027 60034 60038 60062 60063 60068 60112 60228 60269 60297 60309 60320 60364 60446 60559 60601 60870 60870-5 60870-6 60906-1 60908 60929 60958 61030 61131 61131-3 61131-9 61158 61162 61334 61355 61360 61400 61499 61508 61511 61784 61850 61851 61883 61960 61968 61970 62014-4 62026 62056 62061 62196 62262 62264 62304 62325 62351 62365 62366 62379 62386 62455 62680 62682 62700 63110 63119 63382
ISO/IEC	646 1989 2022 4909 5218 6429 6523 7810 7811 7812 7813 7816 7942 8613 8632 8652 8859 9126 9293 9496 9529 9592 9593 9899 9945 9995 10021 10116 10165 10179 10279 10646 10967 11172 11179 11404 11544 11801 12207 13250 13346 13522-5 13568 13816 13818 14443 14496 14651 14882 15288 15291 15408 15444 15445 15504 15511 15693 15897 15938 16262 16485 17024 17025 18004 18014 18181 19752 19757 19770 19788 20000 20802 21000 21827 22275 22537 23000 23003 23008 23270 23360 24707 24727 24744 24752 26300 27000 27000-series 27002 27040 29110 29119 33001 38500 39075 42010 80000 81346
Related	International Electrotechnical Commission