重庆电线电缆重庆YJHL铝合金电缆行业巨子Aluminum alloy cable since 1968 the United States R & D, use has been 43 years, the use of the product has been quite common, the North American market share reached 80%. After 43 years of practice has proved that the use of aluminum alloy cable has never been any failure, it is safe.
2, testing and certification
Aluminum alloy cable through the United States UL, Canada cul, testing and certification of Australian Sai GLOBAI international authoritative institutions certification and China national wire and cable testing center, Wuhan High Voltage Research Institute, national fireproof construction material quality supervision and inspection center authority, aluminum alloy conductor character CSA Standard c22.2 Article 38 ACM alloy wire on the requirements, and GB12706.1--2008 and IEC60502.1 the latest version of the performance requirements, and UL related to AA8000 standard.
3, aluminum alloy composition
Aluminum alloy conductor component added to the rare earth and iron and other elements, greatly improves the conductivity and connection performance, especially when the conductor annealing add iron creep resistance of high strength, in the current overload, iron play a role of persistent connection, aluminum alloy conductor will not creep.
] creep of cable damage greatly, when the cable creep, the contact point originally pressure tight enough, the pressure decreased, the contact resistance increases rapidly, the current flow caused by joints, overheating, if not regular maintenance, there will be security risks. Solving the cable creep problem is very important.
] creep: metal in temperature, can not recover the permanent deformation under the action of external force and weight, with the passage of time, will slow, this kind of phenomenon for creep.
4, flame retardant properties
Aluminum alloy cable insulation material adopts flame-retardant silane crosslinked polyethylene (XLPE), process adopt self-locking armored structure, thermal performance is much better than PVC material sheath can dissipate heat rapidly, after the disappearance of the flame the flame can be extinguished rapidly and will not delay the other materials, flame retardant can very excellent. Aluminum alloy cable using new materials and new technology, to ensure that the use of more secure.重庆电线电缆重庆YJHL铝合金电缆自1968年美国研发、使用至今已43年,该产品使用已相当普遍,北美地区市场占有率达到80%。经过43年的实践证明,铝合金电缆使用**发生任何故障,是*的。
2、检测及认证
铝合金电缆通过美国的UL,加拿大的CUL,澳大利亚的SAI GLOBAI***机构检测认证和中国地区电缆电线检测中心,国网武汉高压*,地区*建筑材料*中心等*机构检测认证,铝合金导体符 合CSA标准C22.2*38条款关于ACM合金导线的要求,和GB12706.1--2008和IEC60502.1较新版的性能要求,以及UL对 AA8000系列相关的标准。
3、铝合金成分作用:
铝合金导体成分加入稀土和铁等成分后,大大地提高了其导电性能和连接性能,尤其是当导体退火时添加铁产生了高强度的抗蠕变性能,在电流过载时,铁发挥持续的连接作用,使铝合金导体不会发生蠕变。
蠕变对电缆危害较大,若电缆发生蠕变,其接触点原来压不够紧,压力减小使得接触电阻*增大,电流流过后造成接头处过热,如果不定期检修,就会出现*隐患。解决电缆蠕变问题非常重要。
蠕变:金属在温度,外力和自重的作用下,随着时间的推移,将缓慢的产生不能复原的*变形,这种现象为蠕变。
4、阻燃性能
铝合金电缆的绝缘材料采用阻燃硅烷交联聚乙烯(XLPE),工艺上采用自锁铠装结构,散热性能远远**PVC材料的护套,可以*散热,火焰消失后火苗能*熄灭,不会延然其它材料,阻燃性能较为优异。铝合金电缆采用新型材料和新工艺,可确保其使用较加*。