GB 50545-2010 Translated English of Chinese Standard. GB50545-2010: Code for Design of 110kV~750kV Overhead Transmission LineIn order to implement national capital construction policy and technical economy policy during the design of AC 110kV~750kV overhead transmission line, achieve safety and reliability, advanced application, economy and rationality, resource conservation and friendly environment, this code is formulated. |
Contents
General Provisions | 1 |
Insulation Coordination Lightning Protection and Grounding 11 8 Conductor Arrangement | 16 |
Foundations | 29 |
Reference Value of m1 for Different Insulator Type | 42 |
Common terms and phrases
adjustment coefficient annual daily volume average annual daily calculated according Class IV highway coefficient of wind compression stress conductor and earthwire conductor is broken conductor or earthwire convert all kinds creepage distance design value determined according electric electric resistivity erected following formula following requirements foundation free from inspection galvanized steel strand Grade ice coating insulator string intersection angle iron tower kinds of automobiles large crossing lightning surge limit state design link suspension insulator longitudinal unbalance tension meet the following meet the requirements minimum vertical distance multiple conductor Nominal voltage kV notch number of insulator operating experience optical fiber Overhead Line overhead transmission line partial coefficient permanent load piece number prestressed concrete railway reference wind speed ropeway seismic shielding angle single conductor small passenger car soil span specified in Table standard value strain insulators Strain tower suspension-type tower switching surge terminal towers typical meteorological uneven ice thickness values specified voltage(kV weak-current lines