Foreword
Scope
1 Referenced standards and definitions
Referenced standards
Definitions
2 General
General information
Safety precautions
3 Varnish adjustment procedure
General
Preparation of test specimens
4 Product properties
Required product properties
Additional properties
5 Test methods
Bond strength - helical coil method
Bond strength - twisted coil method
Chemical resistance of electrical insulating
varnish
Dielectric breakdown voltage
Dielectric strength of solvent or solventless
varnishes
Permittivity (dielectric constant) and dissipation
factor
Dissipation factor - varnished magnet wire
Flash point
Refrigerant resistance/extractibles
Gel time
Monomer content
Nonvolatile matter - solvent varnishes
Specific gravity
Thermal aging - curved electrode
Thermal aging - non-enameled rectangular insulated
magnet wire
Thermal aging - helical coil
Thermal aging - twisted coil
Thermal aging - twisted pairs
Varnish compatibility
Viscosity, Brookfield
Figures
5-1 Test fixtures for bond strength test
5-2 Coil winder
5-3 Coil twister
5-4 Single-shot curved electrode details
5-5 Test specimen for thermal aging shaped wire
Tables
5-1 Wire tension requirements
5-2 Recommended exposure in days per cycle
5-3 Test voltages
5-4 Proof test voltages