工频汽油发电机组额定功率、电压及转速
Power frequency gasoline generator set rated power,voltage and speed
2020-04-16
BS 12/30260765 DC
BS EN 50412-4. Power line communication apparatus and systems used in low-voltage installations in the frequency range 1,6 MHz to 30 MHz. Part 4. Low rate wide band services (LRWBS) operating between 2 MHz and 4 MHz. Channel allocations
英国标准EN 50412-4 频率范围为1.6 MHz至30 MHz的低压装置中使用的电力线通信设备和系统 第四部分 低速率宽带业务（LRWBS）在2 MHz和4 MHz之间运行 渠道分配
2012-03-07
DIN EN 50412-4-DRAFT
Draft Document - Power line communication apparatus and systems used in low-voltage installations in the frequency range 1.6 MHz to 30 MHz - Part 4: Low rate wide band services (LRWBS) operating between 2 MHz and 4 MHz - Channel allocations; German version prEN 50412-4:2012
文件草案.频率范围为1.6 MHz至30 MHz的低压装置中使用的电力线通信设备和系统.第4部分:在2 MHz至4 MHz之间运行的低速宽带业务（LRWBS）.信道分配；德文版prEN 50412-4:2012