NEMA RE 2:1999
Current
The latest, up-to-date edition.
Electrical Insulating Varnish
30-09-2004
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
Presents all Standards for electrical insulating varnishes. Intended to assist those responsible for the design and repair of existing electrical equipment.
| DocumentType |
Standard
|
| PublisherName |
National Electrical Manufacturers Association
|
| Status |
Current
|
| Supersedes |
| MIL-HDBK-454 Revision B:2007 | GENERAL GUIDELINES FOR ELECTRONIC EQUIPMENT |
| MIL-I-24092 Revision D:1993 | INSULATING VARNISHES AND SOLVENTLESS RESINS FOR APPLICATION BY THE DIP PROCESS |
| MIL STD 11991 : A | GENERAL STANDARD FOR PARTS, MATERIALS, AND PROCESSES |
| ASTM D 115 : 2017 : REDLINE | Standard Test Methods for Testing Solvent Containing Varnishes Used for Electrical Insulation |
| NEMA MW 1000 : 2016 | MAGNET WIRE |
| IEEE 4-2013 | IEEE Standard for High-Voltage Testing Techniques |
| ASTM D 93 : 2016-07 | TEST METHODS FOR FLASH POINT BY PENSKY-MARTENS CLOSED CUP TESTER |
| IEC 60216-1:2013 | Electrical insulating materials - Thermal endurance properties - Part 1: Ageing procedures and evaluation of test results |
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