The network will tie into PJM's electrical grid, which serves 13 states and Washington D. c.
这个项目的网络将会连接到PJM公司为华盛顿和13个州服务的电网中。
PV panels produced d. c. electrical output whenever they are exposed to sunlight, so they cannot be switched off.
PV电池板一旦有阳光照射就会输出直流电，它们不能被切断。
Control and indicating equipment (c. i. e) meets the requirements of GB4717-1993. The test items include Electrical transient bursts , Electrostatic discharge , and Radiated electromagnetic fields.
火灾报警控制器应符合GB4717-1993 标准的要求。检测项目有：静电放电；辐射电磁场；电快速瞬变脉冲群。
Control and indicating equipment (c. i. e) meets the requirements of GB4717-1993. The test items include Electrical transient bursts , Electrostatic discharge , and Radiated electromagnetic fields.
火灾报警控制器应符合GB4717-1993 标准的要求。检测项目有：静电放电；辐射电磁场；电快速瞬变脉冲群。
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