GB 50057-2010 第6.3.1条
| | Surge protective devices (SPDs) shall be installed on hotel power supply lines. At the boundary between LPZ0A or LPZ0B and LPZ1, the nominal discharge current In of the SPD shall not be less than 20kA (10/350μs waveform) or 40kA (8/20μs waveform). |