Discussion on the key technical problems of the middle and low voltage cable accessory usedAddtime：2015/3/27 

Abstract: stress tube is a volume resistivity of moderate (node on Omega cm), high dielectric constant (20 -- 25) special electrical parameters of heat shrinkable tube, using electrical parameter forcing cable insulation shielding fracture stress evacuation along the stress distribution more uniform tube. This technology is generally used in 35kV and following cable accessories. This paper briefly introduces the main types and the key technology of the middle and low voltage cable accessories..