UL20276美标拖链信号电缆30V

UL20276型挤压非整体护套多芯电缆

额定值60或80摄氏度，30伏交流电，结构A上的电缆火焰，结构B上的水平火焰。

绝缘导线贴有标签或符合AWM程序。最小40 AWG。

组件由两个或多个导体、双绞线、平行线对或一组双绞线或多对绞在一起组成。导线或导线组可平行敷设，形成扁平、椭圆形或圆形电缆。未规定绝缘导线的敷设方式。屏障层和/或填料是可选的。制造商应保存每个组件的完整说明。可使用相同或混合的AWG尺寸。

在导体组件上的任意点上覆盖可选的挤出PVC，最小厚度为6密耳。

屏蔽可选。

护套挤出聚氯乙烯。

施工A施工B

导管架下芯组件直径最小平均厚度任何点最小平均厚度任何点最小平均厚度最小厚度

0.350英寸或以下20密耳17密耳15密耳12密耳

0.351-0.700英寸30密耳24密耳30密耳24密耳

0.701-1.000英寸40密耳36密耳40密耳36密耳

1.101-1.500英寸54密耳48密耳54密耳48密耳

标准电器布线材料UL 758。

一般标记。

使用结构A：仅在2级电路中使用电子设备的内部布线或外部互连。结构B：仅2类电路中的电子设备内部布线。

Style 20276 Multiconductor cable with extruded non-integral jacket

Rating 60 or 80 deg C, 30 V ac, Cable Flame on construction A, Horizontal flame on construction B.

Insulated Conductor Labeled or complying with AWM Procedure. 40 AWG minimum.

Assembly Consists of two or more conductors, twisted pairs, parallel pairs, or groups of twisted conductors or parallel pairs twisted together. The conductors or groups of conductors may be laid parallel forming a flat, oval or round cable. The lay of the insulated conductors are not specified. A barrier layer and/or fillers are optional. Manufacturer shall maintain a complete description of each assembly. May use same or mixed AWG size.

Covering Optional, Extruded PVC, 6 mils minimum thickness at any point, over the conductor assembly.

Shield Optional.

Jacket Extruded PVC.

Construction A Construction B

Diameter of core assembly under jacket Minimum average thickness Minimum thickness at any point Minimum average thickness Minimum thickness at any point

0.350 inch or less 20 mils 17 mils 15 mils 12 mils

0.351-0.700 inch 30 mils 24 mils 30 mils 24 mils

0.701-1.000 inch 40 mils 36 mils 40 mils 36 mils

1.101-1.500 inch 54 mils 48 mils 54 mils 48 mils

Standard Appliance Wiring Material UL 758.

Marking General.

Use Construction A: Internal wiring or external interconnection of electronic equipment in Class 2 circuits only. Construction B: Internal wiring of electronic equipment in Class 2 circuits only.

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