IEC 60851-1 pdf – Winding wires – Test methods – Part 1: General
1 Scope
This part of lEC 60851 specifies the general notes on methods of test for winding wires. It also
gives the definitions for terms used in lEC 60851 (all parts). A survey of the contents oEC 60851-2 to lEC 60851-6 is given in Annex A.
2Normative references
The following documents are referred to in the text in such a way that some or all of their contentconstitutes requirements of this document. For dated references, only the edition cited applies.
For undated’references,the latestedition of the referenced document(including anamendments) applies.
IEC 60317 (all parts),Specifications for particular types of winding wires
IEC 60851-2:2009 1, Winding wires -Test methods – Part 2: Determination of dimensionsIEc 60851-2:2009/AMD1:2015
IEC 60851-2:2009/AMD2:2019
lEC 60851-3:2009 2, Winding wires – Test methods – Part 3:Mechanical propertiesIEC60851-3:2009/AMD1:2013
IEC 60851-3:2009IAMD2:2019
IEC 60851-4:2016,Winding wires – Test methods – Part 4: Chemical propertiesIEC 60851-5:2008 3, Winding wires – Test methods – Part 5: Electrical propertiesIEC 60851-5:20O8/AMD1:2011
IEC 60851-5:2008/AMD2:2019
IEC 60851-6:2012,Winding wires – Test methods – Part 6: Thermal properties
3 Terms，definitions and general notes on methods of test3.1Terms and definitions
For the purposes of this document, the following terms and definitions apply.
lSO and lEC maintainterminological databases for use in standardization at the followingaddresses:
.IEC Electropedia: available at http://www.electropedia.orgl
– Iso Online browsing platform: available at http:/fwww.iso.org/obp3.1.1
bonding layer
material which is deposited on an enamelled wire and which has the specific function of bondingwires together
3.1.2
bunched wire
winding wire consisting of a quantity of small diameter insulated wires laid-up together withoutpredetermined geometrical position and with or without additional covering
3.1.3
class
thermal performance of a wire expressed by the temperature index and the heat shocktemperature
3.1.4
coating
material which is deposited on a conductor or wire by suitable means and then dried and/orcured
3.1.5
conductor
bare metal after removal of the insulation
3.1.6
covering
material which is wound, wrapped or braided around a bare or insulated conductor
3.1.7
crack
opening in the insulation which exposes the conductor to view at the stated magnification
3.1.8
cure
process of converting a reactive compound into a stable，usable condition by polymerizationipolycondensation and polyadditiony andior crosslinking
[SOURCE: IEC 60050-212:2010,212-13-07,modified – At the beginning of the definition,”convert a reactive compound” has been replaced by “process of converting a reactivecompound” to define the term as a process.]
3.1.9
dual coating
insulation composed of two different materials, an underlying and a superimposed coating
3.1.10
enamelled wire
wrire coated with an insulation of cured resin
3.1.11
grade
range of increase in dimension of the wire due to insulation
3.1.12
insulation
coating or covering of the conductor with the specific function of withstanding voltage
3.1.13
nominal conductor dimension
designation of the conductor size in accordance with the specification sheet in the IEC 60317 series
3.1.14
sole coating
insulation composed of one material
3.1.15
winding wire
wire used for winding a coil to provide a magnetic field
3.1.16
wire
conductor coated or covered with an insulation
3.1.17
normal vision
20/20 vision, with corrective lenses, if necessary
3.1.18
zero-defect wire
winding wire that exhibits no electrical discontinuities when tested under specific conditions
3.2General notes on methods of test
Unless otherwise specified, all tests shall be carried out at a temperature from 15°C to 40 ℃and a relative humidity of 25 % to 75 %.Before measurements are made, the specimens shallbe preconditioned under these atmospheric conditions for a time sufficient to allow the wire toreach stability.
The wire to be tested shall be removed from the packaging in such a way that the wire will not
be subjected to tension or to unnecessary bends.Before each test,sufficient wire shall bediscarded to ensure that any damaged wire is not included in the test specimens.
Normally，all mandatory requirements for a method of test are given in the description,anddiagrams are intended only to illustrate one possible arrangement for conducting the test.
In case of inconsistencies between the IEC 60317 specification sheet and this document, thespecification sheet shall prevail.
When the test is restricted only to certain types of winding wires, this is specified with the test.
Those tests of IEC 60851-2, IEC 60851-3, IEC 60851-4, IEC 60851-5 and lEC 60851-6 whichin Annex A are marked with an asterisk are periodic conformance tests. These tests are carried
out at a frequency agreed upon request of the end user.
The test numbers used in IEC 60851-2, IEC 60851-3, IEC 60851-4， IEC 60851-5 andIEC 60851-6 correspond with the clause numbers in the lEC 60317 series.