In this paper the mechnical properties of two types of cast iron are compared and the producing process of the railway castings of as-cast nodular iron are described.

Brief analysis the reasons caused loss and its countermeasures in forest area 10kV distribution line;

Study on line arrester applied to improve the lightning performance of 10 kV distribution lines

In order to change non-normative status of setting of interim electro-equipment in construction local, this paper expounds how to set interim electro-equipment in construction local from aspects of construction design, laying distribution line, three class power distribution and two class leakage protection, earthing and lightning protection, distribution box, use and maintenance and so on.

The test & analysis of adopting reactive automatic compensating box to reduce distribution lines loss;

Frequency domain analysis for line-to-ground fault location in frequency-dependent distribution lines;

In view of the problem that lighting flashover,lightning-caused line breaking,pollution flashover and the other flashover accidents were liable to occur on 10 kV distribution lines,The insulated tower top and cross arm which can prevent the lightning flashover and pollution flashover of distribution lines are experimentally researched.

In order to optimize the placement and capacity of shunt capacitor on feeder,and give the guidance to engineering practice of installation of reactive power device in distribution network,this paper studces the tow-layer optimization model used to determine the position and the capacity of reactive power compensation device on distribution feeder is studied in this paper.

This paper proposes a new non-communication protection scheme for distribution feeders separated by single circuit breakers.

Based on the particular characteristic of 10 kV distribution feeders, the technique of sensitivity analysis is used in this paper for the computation of reactive compensation.