[防雷计算](%E9%98%B2%E9%9B%B7%E8%AE%A1%E7%AE%97.md) [电子防雷计算](%E7%94%B5%E5%AD%90%E9%98%B2%E9%9B%B7%E8%AE%A1%E7%AE%97.md) [短路电流计算](%E7%9F%AD%E8%B7%AF%E7%94%B5%E6%B5%81%E8%AE%A1%E7%AE%97.md) [照度计算](%E7%85%A7%E5%BA%A6%E8%AE%A1%E7%AE%97.md)