| 摘要 |
PROBLEM TO BE SOLVED: To provide a composite membrane for an oil-immersed transformer conservator capable of obtaining a high resistance to air permeability and including excellent followingness against deformation. SOLUTION: The composite membrane 1 for a conservator used for an oil-immersed transformer is configured by adhering inner layers 3A, 3B made of nylon cloth to both sides of an intermediate layer 2 made of an EVOH (Ethylene-Vinyl Alcohol Copolymer) with excellent gas barrier performance or the like, and by providing outer layers 4A, 4B made of nytril rubber to respective surfaces of the inner layers 3A, 3B, and the intermediate layer 2 has an oxygen permeability of 3.5 cm<SP>3</SP>/(m<SP>2</SP>24h atm) or below at room temperature (20 to 25°C) and a humidity of 0%, and 30cm<SP>3</SP>/(m<SP>2</SP>24h atm) at a temperature of 50°C and a humidity of 0%. COPYRIGHT: (C)2006,JPO&NCIPI
|
