Mitsubishi Electric Corporation

Fujikura Limited

Nof Corporation

Bridgestone Corporation

Kenji Matsui

Tohru Takahashi

Shigeo Takata

Hironori Yabuuchi

Masahiro Katayama

Atsuhiro Yabuta

Kazuhiko Goto

Shiro Nakayama

Izumi Ishikawa

Toshio Niwa

Mitutaka Tanida

Thoru Nakatsuka

Hiroyuki Miyata

Yoshifumi Matsumoto

Tatsurou Uchida

An information transfer system for a refrigeration air-conditioning apparatus in which one or more heat-source units for the refrigerating/air conditioning apparatus, one first relay unit, and one or more second relay units are connected by refrigerant piping, and the second relay units and one or more indoor units are connected by water piping, wherein communications are performed discretely between a pair of the heat-source unit and the first relay unit, a pair of the first relay unit and the second relay units, and a pair of the second relay units and the indoor units through transmission lines respectively.

Information transfer system for refrigeration air-conditioning apparatus

There are provided an electric energy meter with a transmission device that generates a pulse signal for measuring electric energy supplied to an outdoor unit, an input circuit for an external signal that receives the pulse signal, and a control unit that measures electric energy on the basis of the pulse signal, wherein the control unit includes a determination unit that determines, as an input port for the pulse signal, one of input ports that are not in use from among a plurality of input ports forming the input circuit for an external signal, and a calculation unit that calculates electric power, electric energy consumption, and energy consumption efficiency on the basis of the pulse signal.

Air-conditioning apparatus

A polyethylene composition which is useful in insulations and joints of extra-high voltage power cables, and in which a cross-linking agent, comprising an organic peroxide subjected to purification processing, and an antioxidant, are blended, wherein the cross-linked composition has a dielectric loss tangent (tan.delta.) of less than or equal to 0.07% at a temperature of 90.degree. C. and under an electric field stress of 20 kV/mm. This polyethylene composition exhibits little dielectric loss, even at high temperatures or high electric field stresses, and is optimally employed in insulations and joints for extra-high voltage power cables of 275 kV or more.

Polyethylene composition for use in insulations and joints of extra-high

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Tokyo, Japan

Kenji Matsui