| 摘要 |
<p>PURPOSE:To detect rainwater, which enters the repeater due to an equipment defect or construction defect, with high accuracy of preventive action by using economical constituent elements. CONSTITUTION:This repeater has a resistance variable water infiltration detector 6 which serves as a continuous electromagnetic shield function in the matching surfaces 1a and 2a of a housing 1 and a lid 2 and inside and adjacently to a waterproof gasket 3 and a monitor part 7 which detects variation in the resistance of the water infiltration detector 6, converts the variation into water infiltration information, and transfers it to a sensor through an up line.</p> |
