IEC 60317-54 pdf download – Specifications for particular types of winding wires – Part 54: Polyester enamelled round copper wire, class 155L

IEC 60317-54 pdf download – Specifications for particular types of winding wires – Part 54: Polyester enamelled round copper wire, class 155L
1scope
This part of lEC 60317 specifies the requirements of enamelled round copper winding wire ofclass 155L with a sole coating based on polyester resin，which may be modified providing itretains the chemical identity of the original resin and meets all specified wire requirements.
NOTE 1 A modified resin is a resin that has undergone a chemical change,or contains one or more additives toenhance certain performance or application characteristics.
Class 155L is a thermal class that requires a minimum temperature index of 155 and a heatshock temperature of at least 175 ℃.
NOTE 2 This type of enamelled wire has lower heat shock performance compared to polyester enamelled roundcopper wire class 155 according to lEC 60317-3.
The temperature in degrees Celsius corresponding to the temperature index is not necessarilythat at which it is recommended that the wire be operated; this will depend on many factors,including the type of equipment involved.
The range of nominal conductor diameters covered by this part of lEC 60317 is as follows:- grade 1 : 0,050 mm up to and including 3,150 mm;
– grade 2: 0,050 mm up to and including 5,000 mm.
The nominal conductor diameters are specified in clause 4 of lEC 60317-O-1.
2Normative references
The following normative documents contain provisions which，through reference in this text,constitute provisions of this part of lEC 60317.For dated references, subsequent amendmentsto，or revisions of， any of these publications do not apply.However，parties to agreementsbased on this part of IEc 60317 are encouraged to investigate the possibility of applying themost recent editions of the normative documents indicated below.For undated references, thelatest edition of the normative document referred to applies. Members of lEC and lSO maintainregisters of currently valid International Standards.
IEC 60317-0-1:1997，Specifications for particular types of winding wires – Part 0: Generalrequirements – Section 1: Enamelled round copper wire 1
3 Definitions and general notes on methods of test
For definitions and general notes on methods of test see clause 3 of IEC 60317-0-1.
In case of inconsistencies between IEC 60317-0-1 and this standard, IEC 60317-54 shall prevail.
4 Dimensions
See clause 4 of IEC 60317-0-1.
5 Electrical resistance
See clause 5 of IEC 60317-0-1.
6 Elongation
See clause 6 of IEC 60317-0-1.
7 Springiness
See clause 7 of IEC 60317-0-1.
8 Flexibility and adherence
See clause 8 of IEC 60317-0-1, where the constant K used for the calculation of the number of revolutions for the peel test shall be 130 mm.
9 Heat shock
See clause 9 of IEC 60317-0-1, where the minimum heat shock temperature shall be 175 °C.
9.1 Nominal conductor diameters up to and including 1,600 mm
The coating shall show no crack. The mandrel diameter shall be as specified in table 1.9.2 Nominal conductor diameters over 1,600 mm
The coating shall show no crack after having been elongated 10 %.
10 Cut-through
No failure shall occur within 2 min at 240 °C.
11 Resistance to abrasion (nominal conductor diameters from 0,250 mm up to and including 2,500 mm)
The wire shall meet the requirements given in table 2.
12 Resistance to solvents
See clause 12 of IEC 60317-0-1.
13 Breakdown voltage
See clause 13 of IEC 60317-0-1, where the elevated temperature shall be 155 °C.
14 Continuity of insulation
See clause 14 of IEC 60317-0-1.
15 Temperature index
See clause 15 of IEC 60317-0-1, where the minimum temperature index shall be 155.
16 Resistance to refrigerants
Test inappropriate.
17 Solderability
Test inappropriate.
18 Heat or solvent bonding
Test inappropriate.
19 Dielectric dissipation factor
Test inappropriate.
20 Resistance to transformer oil
Test inappropriate.
21 Loss of mass
Test inappropriate.
30 Packaging
See clause 30 of IEC 60317-0-1.