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UNDERWRITERS LABORATORIES, INC. APPLIANCE WIRING MATERIAL
Subj. 758 Section 2 Page 2051 Issued: May 1, 1959
Vol. This Page Effective May 1, 1959 Revised:
Style 2051 Four-Conductor Style SPT-1 Cord for Internal
Wiring of Refrigerating Equipment.
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Conductors Four No. 14 Awg consisting of No. 30 Awg or
smaller tinned or bare copper, page 26.
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Integral Same as for Type SPT-1 except for a nominal 5/64
Insulation inch separation between conductors. The following
and minimum (Pin Gauge) dimensions shall apply:
Jacket Wall thickness: 0.028 in.
Web thickness: 0.070 in.
Wall after rip: 0.028 in.
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Standard Flexible Cord and Fixture Wire.
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Instructions Detailed examination.
to UL Tests same as for Type SPT-1.
Representative Spark Test, page 30.
Insulation resistance shall be not less than
1 megohm - 1000 feet.
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Counter-Check (4) Tests same as for Type SPT-1.
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Manufacturer's marker required, pages 3, 18, 19.
Items 1a, 1i, 3m, 4p.
Temperature marker not required.
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Use Internal wiring of electric refrigerators where
installed within separate metal enclosures or between
Polarity identification may be omitted.