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J-w-1177/18B
June 10, 1988
SUPERSEDING
J-w-1177/18A
September 27, 1976
WIRE,
This specification
FEDERAL SPECIFICATION SHEET
MAGNET, ELECTRICAL, CLASS 220,
POLYIMIDE-COATED, P.RCTAMGULAR
is approved by the Commissioner,
TYPE M,
General Services Administration, for the use of all
The requirements for acquiring the wire described herein
specification and the latest issue of J-W-1177.
Federal Supply Service,
Federal agencies.
shall consist of this
Classification:
Class 220; type M2 (heavy), type M4 (quadruple);
rectangular.
Insulating materials: The film shall be based on a polyimide resin.
NEMA/ANSI equivalent: All test requirements except thermal endurance
are equivalent to MW-20 of NEMA MU 1000.
General requirements: See J-W-1177 for general requirements, quality
aasurance provisions, and packaging.
Requirements:
Test procedure,
Wire sizes,
Characteristics aee J-W-1177
AWG
Requirements
Dimensions 4.7.1.2
Al1
Rectangular wire:
(a) Conductor dimensions
and radii - see table I.
(b) Conductor tolerances -
see table II.
(c) Increase in thickness
and width - see table III.
Square wire:
(a) Conductor dimensions,
radii and tolerances -
see table IV.
(b) Increase in thickness
and width - see table IV.
4.7.2.1
All
No cracks visible in the film
coating.
Adherence and
flexibility
AMSC N/A FSC 6145
●
DISTRIBUTION STATEMENT A Approved for public release; distribution unlimited
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