Proper use and maintenance of low voltage circuit breakers must pay attention to the following 7 issues:
(1). The circuit breaker according to the provisions vertical small for connecting wires must meet the requirements.
(2). Release setting values are not arbitrarily change once after a good tune, but it should be regularly checked, so as not to trip malfunction or does not work. After long-term use to check whether its spring rusty stuck, so as not to affect its operation.
(3). The circuit breaker breaking short-circuit currents, in the case of higher power cut, timely check contacts. If there is a serious electrocautery marks, dry cloth wipe; singeing contact if found, can be carefully fine sandpaper or a file trimming lines. However, the main contact is generally trimmed with a file are not allowed.
(4). The action should be regularly removed dust values and examine the various releases of the circuit breaker operating mechanism in the transmission portion is usually every two filling oil.
(5). Or long-term use interrupter breaking short-circuit currents, the metal particles should be removed on the interior wall of the interrupter and the gate sheet and a black ash, in order to ensure good insulation.
(6). The work can not be removed when the arc chute, the arc chute damage should be replaced to avoid a short-circuit accident current occurs not be extinguished.
(7). Check the current setting value and the delayed release of the respective periodic; release for a semiconductor, it should periodically check the operation of the case with the test button.