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［nakuumun 在 2013-10-29 8:24:33 編輯過］

［nakuumun 在 2013-10-29 8:25:26 編輯過］

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.

  ---------------------------------------------------------------------------­

  Rating               60°C, 300 Volts.

  ----------------------------------------------------------------------------

  Conductors           Four No. 14 Awg consisting of No. 30 Awg or

                      smaller tinned or bare copper, page 26.

  ----------------------------------------------------------------------------

  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.

  ----------------------------------------------------------------------------

  Standard             Flexible Cord and Fixture Wire.

  ----------------------------------------------------------------------------

  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.

  ----------------------------------------------------------------------------

     UL                (4) Detailed examination.

  Counter-Check       (4) Tests same as for Type SPT-1.

  Program             

  ----------------------------------------------------------------------------

  Marking              General, page 13.

                      Manufacturer's marker required, pages 3, 18, 19.

                      Items 1a, 1i, 3m, 4p.

                      Temperature marker not required.

  ----------------------------------------------------------------------------

  Use                  Internal wiring of electric refrigerators where

                      installed within separate metal enclosures or between

                      the walls of the cabinet.

                      Polarity identification may be omitted.