Special measures ensure improvements. A school subject to special measures will have regular short-notice Ofsted or Estyn inspections to monitor its improvement. The senior managers and teaching staff can be dismissed and the school governors replaced by an appointed executive committee. If poor performance continues the school may be closed as in the case of the Frank Montgomery School in Kent. The current circumstances under which a school may be placed in special measures, and the procedures to follow, are stipulated by the Education Act 2005. Prior to 2005 special measures were applied to any school which was failing to supply an
Electrical treeing the partial discharges. A sufficient measurement report contains: Electrical treeing In electrical engineering, treeing is an electrical pre-breakdown phenomenon in solid insulation. It is a damaging process due to partial discharges and progresses through the stressed dielectric insulation, in a path resembling the branches of a tree. Treeing of solid high-voltage cable insulation is a common breakdown mechanism and source of electrical faults in underground power cables. Electrical treeing first occurs and propagates when a dry dielectric material is subjected to high and divergent electrical field stress over a long period of time. Electrical treeing is observed to originate at