1) emergency current rating of cables 电缆短时过载载流量2) short-term ampacity 短时载流量 1. Based on the calculation of the transient temperature distribution,short-term ampacity of underground cable systems is calculated by Newton iteration method. 在此基础上,利用牛顿迭代法计算了土壤直埋电缆...
【英/法语版】国际标准 IEC 60287:1969 EN-FR Calculation of the continuous current rating of cables (100 % load factor) 电缆连续电流额定值的计算(满载因子100%).pdf,以下文本介绍内容由我方AI生成,信息仅供参考,如有出入,请以实际为准。 IEC 60287是IEC(国际
6) emergency current rating of cables 电缆短时过载载流量补充资料:理想流量计试探与流量仪表的选用 理想流量计试探 1.检测件无阻碍物; 2.检测件可夹装在管道外部,可随意移动在任何地点测量而无须截断管道与流体; 3.仪表的流量计算方程简单明确,可外推到未知领域而无须实流校验; 4.频率脉冲输出信号,数字式...
E. Hutchings "Current Ratings of Cables for Transmission and Distribution", J. IEE , vol. 38, pp.517 -557 1938Whitehead S., Hutchings E.E.: Current rating of cables for transmission and distribution. Journal of the Institution of Electrical Engineers, vol. 83, no. 152, ...
± when a bunched installation with single cores or multi-cored cables are used on floor the conversion factors for the rating values should be considered ± see table page T 31 factor 0,76 for one-phase a.c. and direct current circuits or factor 0,67 for three-phase circuits, is to ...
coaxially related portions of a fluid conduit, characterized by a substantially rigid tube, wound to a configuration conforming to a uniform helix and having... Paine; Thomas O. Administrator of the National Aeronautics and Space,N/a,Starkey, Donald J. 被引量: 7发表: 1972年 REFRIGERATED DISPLA...
IEC 60287-1-2 Calculation of the continuous current rating of cables
This chapter contains sections titled: Introduction Current Rating of Multicore Cables Examples of Derating Factors Concluding Remarks Chapter Summary This... G Anders 被引量: 0发表: 2005年 THE OFFSET SYSTEM OF ELECTRICAL RESISTIVITY SOUNDING AND ITS USE WITH A MULTICORE CABLE Barker, R D (1981...
Calculating the current rating of HVDC cable systems is less straightforward than for ac cables, which are always thermally limited. While the permissible current in an HVDC cable circuit may be limited by the operating temperature of the dielectric, it may also be restricted by the electric stres...
(redirected fromCurrent rating) ampacity [am′pas·əd·ē] (electricity) Current-carrying capacity in amperes; used as a rating for power cables. McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc. ...