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[問題求助] 求ul 20280 安規(guī)資料

P:2009-09-23 11:27:03

1

如題

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P:2009-09-23 19:10:27

4

UNDERWRITERS LABORATORIES INC.                APPLIANCE WIRING MATERIAL

Subj. 758       Section 2       Page 20280       Issued:  1983-10-13

                                                Revised:  2003-03-31

 

Style 20280

 

Polyurethane jacketed cord straight or coiled in the form of a helix.

 

 

Rating

 

 

80°C, 300 V.

 

Conductor

 

 

2-50 individual conductors, Nos. 36 through 16 AWG, different conductor sizes may be used in one cord.

 

 

Insulated

Singles

 

 

Labeled or complies with manufacturer's AWM Procedure.

 

Assembly

 

 

Two to eight conductors may be laid parallel or twisted together.  Nine or more conductors shall be twisted together.  lay of insulated conductors not specified, but with a twist opposite in direction to the direction in which the helical cord in wound.  Cable may be either straight or coiled or in the form of a helix.

 

 

Shielding

 

Optional.

 

 

Jacket

 

Polyurethane.

 

Thickness of Jacket

 

   Dia of Cable    Min Average   Min Thickness

   under Jacket     Thickness    at any point

    in inches        in mils        in mils    

 

  0.425 or less        30             24

  0.426 - 0.700        45             36

  0.701 - 1.500        60             48

 

 

Standard

 

 

Appliance Wiring Material UL 758.

 

 

Instructions

to UL

Representative

 

 

Detailed Examination.

Physical Properties of Jacket.

Spark Test.

(Continued on Page 20280A)

 

 


UNDERWRITERS LABORATORIES INC.                 APPLIANCE WIRING MATERIAL

Subj. 758       Section 2       Page 20280A       Issued:  1983-10-13

                                                 Revised:  2003-03-31

 

 

UL

Counter-Check

Program

 

 

*

 

 

(4)  Detailed Examination.

(4)  Physical Properties of Jacket.

(4)  Heat Shock.

(4)  Deformation.

(4)  Cold Bend.

(12) Cable Flame Test.

 

 

Marking

 

 

General.

 

 

Use

 

 

Internal wiring or external interconnection of appliances or electronic equipment.

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