发布时间:2025-02-08 02:35:59
导线截面积s=I/a。I表示电流安,a表示每平方安全承载电流安。铜线a取每平方8安,铝线4安。比如100安的电流,铜线s=100÷8=12.5平方,铝线s=100÷4=25平方。
SIEMENS/西门子 SN23E831TI 独立式洗碗机-洗碗机中的战斗机
2025-02-08 02:35:59 2025-02-08 02:35:59 2025-02-08 02:35:59 2025-02-08 02:35:59 2025-02-08 02:35:59 2025-02-08 02:35:59 2025-02-08 02:35:59 2025-02-08 02:35:59 2025-02-08 02:35:59 2025-02-08 02:35:59装修吊好顶的3米5净空安全出口和疏散指示器要装多高才符合规范
2025-02-08 02:35:59 2025-02-08 02:35:59 2025-02-08 02:35:59 2025-02-08 02:35:59 2025-02-08 02:35:59 2025-02-08 02:35:59 2025-02-08 02:35:59 2025-02-08 02:35:59 2025-02-08 02:35:59 2025-02-08 02:35:59 2025-02-08 02:35:59 2025-02-08 02:35:59 2025-02-08 02:35:59 2025-02-08 02:35:59 2025-02-08 02:35:59 2025-02-08 02:35:59