A group protection module for a switchgear arrangement is provided in order to protect a group of load feeders, each having a contactor for connecting or disconnecting a respective load. The papermaking felt is composed of a base body and a batt fiber layer, characterized in that one or more thicknesses of endless base bodies are disposed on the felt back-face side and one or more thicknesses of open-ended base bodies is annularly wound not less than one turn on the felt front-face side. Circuitry is provided to measure pressure using the pressure sensor, and to measure pressure based upon the change of the physical property of the fill tube. The mixing of the engine exhaust gases with the surrounding fluid flow is further enhanced by a trailing edge of the exhaust shroud. The EVOH resin composition has such flexibility that even when used in applications where the resin composition is repeatedly folded or deformed over a long period, the resin composition does not develop pinholes or the like, and further has excellent gas barrier properties and melt molding stability.