| 摘要 |
The present invention relates to a tamper switch for valve. According to the present invention, the temper switch for valve is rotated by a handle connected to a power delivering unit installed in housing, and shows the opening or closing state of the valve by being combined to a valve having a valve axis combined to a disc. The tamper switch comprises: a cover member combined to the housing and made of a transparent material; and a rotating member positioned in the cover member and combined to the end part of the valve axis to rotate integrally with the valve axis. The cover member comprises a releasing member to be separated in a side direction, when the releasing member is separated from the cover member, the portion separated from the releasing member is opened sideward and the rotating member is exposed sideward through the opening part, therefore, industrial disaster is prevented by minimizing errors of alarm and prevention of disasters systems, and a lamp is prevented from being off due to polar change by connecting the lamp to the power with a bridge diode. |
