INSULATED HOUSING OF LOAD BREAK SWITCH AND CIRCUIT BREAKER

摘要

PURPOSE: A complex insulating housing of a prefabricated type for a load break switch or a circuit breaker is provided to solve crack problems generated from a difference in a coefficient of thermal expansion between an epoxy housing and a vacuum valve and from a problem due to a molding failure of an existed epoxy housing by forming an insulation part by injecting an insulating oil into a gap between the epoxy housing and the vacuum valve. CONSTITUTION: A complex insulating housing of a prefabricated type for a load break switch/a circuit breaker comprises to form in order to assemble a vacuum valve(200) in an epoxy housing(100) in which a secondary side electrode(120) and a primary side electrode(130) are molded into one body without a separate molding process or a surface process. An insulation part(240) is formed by filling an insulating oil in a separate space between the vacuum valve and the epoxy housing.