- Nov 24, 2017 -
① anti-mistake locking device structure should be simple, reliable, easy operation and maintenance, as far as possible without increasing the complexity of the normal operation and accident handling.
② electromagnetic lock using the gap principle, the lock bolt can automatically reset.
③ sets of high-voltage switchgear should give priority to mechanical interlocking error prevention.
④ anti-mistake device should be equipped with an unlocking tool (key).
⑤ anti-mistake device should not affect the switchgear's main technical performance.
⑥ anti-mistake device should be dustproof, anti-foreign objects, rust, not jam. Outdoor false-proof device should also be waterproof, moisture-proof, anti-mildew measures.
⑦ "Five Prevention" in addition to prevent misclassification, mistakenly circuit breaker can be prompted facilities, other "four defenses" should be mandatory measures.