Write on work procedures and educate employees as follows.(1-1,2,3 by 3/16)
1-1 Replace a breaker to new one, when it break down.
Prohibit repairing and reusing it.
1-2. Make licensed workers of Electric construction take a course of public institution
again. (by 6/30)
2. Implement reset work after replacing a breaker in normal installation condition.
Do revision of instructions on breaker exchange and re-educate about it.
(by 3/16)
3. Re-educate about wearing insulated gloves when doing electrical work. (by 3/16)