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NEMA RE 2:1999

Current
Current

The latest, up-to-date edition.

Electrical Insulating Varnish
Published date

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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