Accession Number:

AD0744951

Title:

Thermal Aging Studies of Encapsulated Motorette Insulation Systems

Descriptive Note:

Corporate Author:

NAVAL SHIP RESEARCH AND DEVELOPMENT LAB ANNAPOLIS MD

Personal Author(s):

• Flaherty, Jr., R. J.

Report Date:

1968-02-01

Pagination or Media Count:

15.0

Abstract:

Thermal aging studies were conducted on four epoxy encapsulated insulation systems on motorettes to establish their thermal ratings. Encapsulation of Class A and B INSULATION SYSTEMS RESULTED IN UPGRADING THE class A system from 105 to 138 C and the Class B system from 130 to 150 C. It is recommended that the encapsulated insulation systems studied be rated thermally Class B.

Descriptors:

• *ELECTRIC MOTORS
• *ELECTRICAL INSULATION
• AGING(MATERIALS)
• LIFE EXPECTANCY(SERVICE LIFE)
• NAVAL RESEARCH
• ENCAPSULATION
• EPOXY RESINS
• THERMAL STRESSES

Subject Categories:

• Electrical and Electronic Equipment

Distribution Statement:

APPROVED FOR PUBLIC RELEASE