2) weight of ice accretion
覆冰冰重
1.
Simple models for calculating weight of ice accretion on transmission lines
输电线路导线覆冰冰重简单模型
3) heavy ice
重冰
4) heavy icing section
重冰段
1.
Design features of Guanshan heavy icing section of Liutianguan Line,the nation s first 330 kV transmission line,can be summarized as following,using-shaped suspension tower,no separated conductor suspension points on the crossarm,60 included angled V-shaped insulater string,metal assembled foundation.
我国第1条330 kV刘天关输电线路关山重冰段设计的特点,可归纳为:采用门型直线铁塔,横担导线挂点不设隔面,60°夹角的V型串,金属装配式基础。
5) heavy ice area
重冰区
1.
For heavy ice area, there are usually high altitude, tanglesome terrain, severe weather and bad traffic condition, the conductor choose should satisfy running safely and reliably, hence the choice of conductor type is one of very important topic for studying.
为了合理地选择云广±800kV直流输电工程重冰区的导线型号,采用CISPR的无线电干扰预估公式、美国BPA与EPRI的可听噪声预估公式预估了不同型号导线的电磁环境参数,分析极导线不同分裂根数时的无线电干扰、可听噪声、导线振荡、次档距振荡、覆冰跳跃以及覆冰舞动等后确定了极导线的分裂根数与分裂间距;计算、比较了不同型式导线的单丝性能、外层单丝应力、覆冰过载能力、弧垂特性等因素对杆塔荷载的影响;在采用年费用最小法比较不同导线组合,并评价整个工程供电安全性后推荐云广±800kV工程20mm重冰区采用普通钢芯铝绞线6×LGJ-630/45,30mm重冰区采用钢芯铝合金导线6×LJHA1/G3A-630-54/19。
6) design of serious icing
重冰设计
补充资料：重冰
1.指厚的冰层。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条