Foreword

OBOR Transmission Line Construction and Management-Book Series totally include ten volumes.The books comprehensively and systematically introduce the knowledge of the State Grid in the construction,operation and maintenance of power transmission lines.Each volume of the books consists of Chinese version and English translation version,which can be used as the electric power vocational education planning textbooks for the countries and regions on the"Belt and Road",and the professional training books for vocational education in electric power technologies.The publication of the book series is of great significance for promoting the management of the power transmission lines on the"Belt and Road".

Since the successful test of methods,tools and instruments for live working in Anshan region in 1954,the live working technologies have been widely applied in the operation and maintenance of power grids in China.With the continuous discovery and innovation by the live working personnel,the methods,tools and instruments for live working have been updated continuously.To standardize the production,test and application of tools and instruments for live working,the country and the industry have formulated and issued over forty standards and specifications for live working tools and instruments,which have significantly improved the manufacturing quality and usage level of live working tools and instruments.

At present,the books related to live working involve fewer contents introducing the tools and instruments for live working,and the information therein is incomplete and short of systematicness.The live working personnel have expected a dedicated book for live working tools and instruments complete in content,detailed and accurate information,and illustrated to guide their practical operations.Meanwhile,the teachers and trainees are a dozen of training bases for live working on power transmission and distribution lines in China is also eager for a training material for live working tools and instruments.Therefore,from 2011,the editor set about collecting and sorting the related data of the type,specification and usage of live working tools and instruments for power transmission and distribution lines,prepared the outline,discussed the contents and sought for opinions from related personnel,continuously improved the contents,and finally completed the edit of this book.

The whole book consists of 8 chapters,which systematically introduce the development history,materials,basic types and test of live working tools and instruments,metal tools and instruments,insulated tools and instruments,special vehicles for live working,safety protection equipment,instruments and apparatus frequently used in live working,keeping and transport of safety and insulated hand tools and live working tools and instruments,etc.For tools and instruments frequently used in the live working on power transmission and distribution lines in and out of China,the compilation is based on the style of structure,classification,functions,examination,usage,keeping and storage,and test period.In the compilation,the national and industrial standards,procedures and specifications for live working tools and instruments are strictly followed.Pictures in appropriate quantity are provided for each type of tool or instrument,so as to improve the readability and practicability of the whole book,and properly embody the current new technologies and new technological level in the development of live working tools and instruments.The whole book is detailed,popular and easy to understand,illustrated,and is strong in pertinence and practicability.(https://www.daowen.com)

This Book is mainly translated by Chengdu UE Information Technology Corp.,except Chapter 7"Safety and Insulating Hand Tools"translated by Sun Yuting.Thanks are hereby given to the above company and person.

Due to the limited knowledge and skill level of the editor,there are still many places that can be improved in the book,and the criticism and correction from readers are appreciated.

Editor

September 2019