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SPECIFICATION
STANDARD
IEC-60317-17
NEMA
MW-18C
IEC-60317-18 IEC-60317-16 IEC-60317-28 IEC-60317-29/
NEMA
MW-36C
IEC-60317-30
IEC-60317-47
NEMA
MW-20C
IEC-60317-58
draft)
   
THERMAL CLASS 105 120 155 180 200 220/240 220 120 180
Chemical base of base coat Polyvinyl Acetal Polyvinyl Acetal Polyester Polyesterimide Polyesterimide Polyimide Polyamide-imide Polyvinyl Acetal Polyesterimide
Chemical base of Top coat         Polyamide-imide     Epoxy-Bond coat Epoxy-Bond coat
Range of Wire (Diameter) Cross section area up to 80 sp.mm, Thickness : from 1.3-8 mm, Width : from 2.0-16 mm
Insulation Range IEC Grade 1:0.060-0.110, IEC Grade 2:0.120-0.179;
NEMA Grade Heavy : Increase in thickness : 0.076-0.127, Grade Quadruple : increase in thickness : 0.127-0.178 mm
In addition to base coat increase
in dimensions, additional bond coat
increase in thickness of
0.030-.0.050 mm
Standard colour Golden Yellow Golden Yellow Brown Brown Brown Light Brown Light Brown Golden Yellow Brown
TECHNICAL PROPERTIES AS PER
IEC-60317-0-2
                 
Flexibility & Adherence                  
:Mandrel Bending on thickness
on width
2-3 t & 3-4 W 2-3 t & 3-4 W 3-4 t & 4-6 W 3-4 t & 4-6 W 3-4 t & 4-6 W 3-4 t & 4-6 W 3-4 t & 4-6 W 2-3 t & 3-4 W 3-4 t & 4-6 W
:Adherence (no crack after
stretching %)
15 15 15 15 15 10 15 15 15
Heat Shock No cracks after
bending on thickness/
Temperature °C
2-3 t/155 2-3 t/155 6 t/175 6 t/200 6 t/200 6 t/260 6 t/240 2-3 t/155 6 t/200
Break down voltage at Room
temp. (minimum) Volts
Grade 1 : > 1000, Grade 2: >2000
Resistance to hot transformer oil Excellent Excellent Not applicable Excellent Excellent Not applicable Not applicable Excellent Excellent
Heat Bonding temperature/Time Not applicable Not applicable Not applicable Not applicable Not applicable Not applicable Not applicable 110 C/48 h or 120 C/24 h
SPECIAL CHARACTERSISTICS
& APPLICATION
High mechanical strength, strong
adhesion of enamel to copper
conductor, Excellent hydrolysis
& oil resistance
Good thermal,
and
overall good
mechanical,
electrical and
chemical
properties
High thermal,
and
overall good
mechanical,
electrical and
chemical
resistance
High thermal,
electrical and
mechanical,
properties,
excellent heat
shock and
burnout
Very high
thermal
properties
Very high
thermal
properties
Bondable coating
with excellent
mechanical
properties
Bondable coating
with excellent
thermal
properties
Delivery Spools Please refer to  DELIVERY SPOOLS for Sizes & Respective Spool Types
Special Notes Oil filled
power &
distribution
transformers,
Inductance
coils, etc.
Oil filled
large
transformers
Loco
transformers,
chokes &
Inductance
coils, etc.
Large rotating
Machines
such as:
motors,DC
motors,High
Voltage motors,
etc.
Large and special
electrical machines
such as:
generators, alternators,
Motors, HV motors,
Dry type transformers,
Inductor coils, etc.
Special electrical
machine
and
magnet
coils for
aerospace
industry
Large and
special
electrical
machines
such as:
generators,
Motors,HV
motors,
Dry type
transformers,
Inductor
coils,etc.
Oil filled large transformers,
Loco transformers,chokes &
Inductance coils, particularly
with improved mechanical
strength(hoop stress) to
resist igh short circuit currents.