A Study on the Properties of CSPE According to Accelerated Thermal Aging Years

Abstract

-The accelerated thermal aging of CSPE (chlorosulfonated polyethylene) was carried out for 40.41, 121.22, and 202.04 days at 100°C, which are equivalent to 20, 60, and 100years of aging at 50°C, respectively. The volume electrical resistivities of the accelerated thermally aged CSPE samples for 0, 40.41, 121.22, and 202.04 , respectively, at room temperature. The measured currents of the accelerated thermally aged CSPE and the standard sample were almost constant after 5 min of applying a 300-V/mm electric field to the CSPE. The V-I slope of the accelerated thermally aged CSPE sample was increased if the applied electric field was increased at room temperature, and the V-I slope of the accelerated thermally aged CSPE was higher than that of standard CSPE.

Comparison of Mechanical and Low-Frequency Dielectric Properties of Thermally and Thermo-Mechanically Aged Low Voltage CSPE/XLPE Nuclear Power Plant Cables

“…In addition to these reactions, materials such as CSPE, which has chlorine and sulfur dioxide attached to the polyethylene backbone, undergo dehydrohalogenation. During dehydrohalogenation, the halogen atom is separated from the polymer chain and the hydrogen, resulting in double bonds in the polymer chain [48,49], resulting in increased conductivity and permittivity [50].…”

Study of Electrical Integrity of Low Voltage Nuclear Power Cables in Case of Plant Life Extension

“…The primary insulation of the cable is composed of XLPE while the jacket material is based on CSPE. Through the modification of the backbone of polyethylene both the materials are produced and are classified as semi-crystalline [11,12]. CSPE is formed through the process of chlorination and chlorosulfonation of polyethylene, on the other hand through the cross-linking the chains of polyethylene result in the formation of XLPE.…”