摘要
常规非铠装阻燃A类电缆存在结构复杂、生产成本高、电缆性能通过率低等问题。试验通过对其结构进行改进,研制了一种新型非铠装阻燃A类电缆,并详细介绍了该电缆的制造工艺,并对7个ZA-YJV-0.6/1 kV-4×50+1×25 mm^(2)电缆进行结构设计与验证,6个不使用隔氧层材料的样品炭化高度在2.8~3.2 m范围,其中1个样品使用隔氧层材料炭化高度小于0.7 m要求,最后进行电性能、机械物理性能、单根电缆垂直燃烧试验,成束燃烧试验(A类)。结果表明,新型非铠装阻燃A类电缆可满足设计技术要求。
Conventional non-armored flame retardant Class A cables have problems of complicated structure,high production cost and low cable performance pass rate.A new type of non-armored flame-retardant class A cable was developed by improving its structure,and manufacturing process was introduced in detail.7 ZA-YJV-0.6/1 kV-4×50+1×25 mm^(2)were designed and verified,and carbonization height of the 6 samples without oxygen barrier material was in the range of 2.8 m and 3.2 m,and that of the 1 sample with oxygen barrier material was less than 0.7 m.Results of electrical properties,mechanical and physical properties,vertical combustion test of single cable and bundle combustion test(Class A)showed that the new type of non-armored flame-retardant Class A cables could meet the technical requirements of design.
作者
张炳勋
徐凌云
明阳阳
苏东波
ZHANG Bingxun;XU Lingyun;MING Yangyang;SU Dongbo(Zhejiang Wanma Co.,Ltd.,Lin′an 311305,China)
出处
《电线电缆》
2024年第2期41-44,共4页
Wire & Cable
关键词
阻燃
电力电缆
碳化高度
新型
flame retardant
power cable
carbonization height
new type
