In America,it gradually becomes common sense to construct safe school buildings and they make related laws after The Field Act promulgated in California in 1933.

Thirdly main problems are pointed out by the analysis of emergency management system for school safety, from which some countermeasures are put forward as follows: setting up unified emergenc.

The frequent occurrence and serious consequence of school safety accidents make the school safety problem become the focus of society concernment.

To meet the need of power system dispatch and operation,a security checking and optimal correction software system for daily generation scheduling is developed.

The contents and characteristics of security checking system for daily generation scheduling of East China power grid are presented.

Practice of the short-term energy planning security check and application of multi dimension gridding

Because of the need for the security check nowadays, the adjustment is increasing consequently,and besides the network is not strong,the researches on these aspects with regard to the daily scheduling should be carried out.

Finally, designs the structure of the Security Check plug-in, proposes an improved Security Check method based on the steady state stability margin coefficient, and makes the computing speed fast.

Taking the annual and monthly contract transactions of Northeast Electricity Market as background, the security correction problems for these two transactions are studied.

In order to adapt to the future power market in East China, this paper presents a security correction method of generation plan in energy management system (EMS) based on the need of the power system operators and analysis.

This paper proposes methods improve on contingency ranking and security corrective.