Pressure surge testing of pothead and joint for pipe type cablecircuits

摘要

The development and testing of a pressure surge accumulator (PSA)suitable for field installation on high pressure fluid filled pipe cablecircuits is described. A prototype full stop joint was designed andbuilt for Con Edison. Pressure surge testing was performed on thecomplete joint to assure that the design would withstand the pressuresurges developed during an electrical fault. Test results show thatinstallation of PSAs will reduce the electrical fault pressure surge toa level low enough to prevent the pothead porcelain from rupturing