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单芯电缆和多芯电缆的优势是什么?


发布时间:

2022-10-09

单芯电缆的优势是横截面积比小,不容易空气氧化,耐短路容量冲击性,使用期长。单芯电线的缺陷电线较为硬,一些地区不方便拉电线,因此 弯折后难以弄直,不断弯折非常容易毁坏电线。

单芯电缆的优势是横截面积比小,不容易空气氧化,耐短路容量冲击性,使用期长。单芯电线的缺陷电线较为硬,一些地区不方便拉电线,因此 弯折后难以弄直,不断弯折非常容易毁坏电线。多芯式电缆线的优势多芯式电缆线就是指具备一个之上绝缘层铜芯电缆的电缆线,它能够降低电缆线的趋肤效应,进而降低路线耗损。

多芯式电缆线的缺陷是抗压强度差,非常容易破裂,耐浪涌电流能力差,成形不方便。单芯电缆线或多芯式电缆线是具备同样横截面积的最好输电线。单铜芯电缆的成本费比多铜芯电缆划算,而多铜芯电缆的成本费略高。

当安裝和电线管时,单铜芯电缆看上去有点硬,而多铜芯电缆应当更软,走线更强。安裝后,单核心和多核在具体应用中类似。

多芯电缆与单芯电缆的区别在电路容量方面,单芯电缆的额定电流容量大于同截面三芯电缆的额定电流容量;在绝缘性能方面,单芯和三芯电缆都需要符合国家标准。在满足国家标准的前提下,还需要留有一定的安全裕度,这可以理解为绝缘性能合格,没有区别;

从电缆使用上来讲,单芯电缆的散热性能大于三芯电缆的散热性能(同样类型的电缆),加上同截面的单芯电缆的额定载流量》三芯电缆,这在相同负载或者短路情况下,单芯电缆的发热量小于三芯电缆,用起来更安全;
从电缆铺设上来讲,单芯电缆铺设更方便,弯折更容易,但长距离的铺设难度单芯电缆大于三芯电缆;
从电缆头的安装上讲,单芯电缆头安装起来更容易,分线方便;

多芯电缆

多芯电缆是指有一根以上绝缘线芯的电缆。电缆在电子产品以及电子系统中都扮演着重要的角色,是连接电子产品各个功能的关键环节,广泛运用于航天航空以及海上战舰等领域。

单芯电缆

单芯是指在一个绝缘层内只有一路导体。当电压超过35kV时,大多数采用单芯电缆,它的线芯与金属屏蔽层的关系,可看作一个变压器的初级绕组中线圈与铁芯的关系。当单芯电缆线芯通过电流时就会有磁力线交链铝包或金属屏蔽层,使它的两端出现感应电压。

关键词:

单芯电缆


这里是占位文字

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