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1.What is the purpose of a blocking diode in a photovoltaic (PV) system? 1.在光伏(PV)系统中,阻断二极管(blocking diode)的作用是什么?
2.Conduit termination is called a: 2.导管的终端处理被称为:
3.Where not to use PVC conduit: 3.以下哪个场所不应使用PVC导管
4.Where not to use NM cable: 4.以下哪个场所不应使用NM电缆:
5.What cable size is typically used for solar battery interconnections? 5.用于太阳能电池组互连的电缆,通常选用何种规格?
6.Min lumens/W for general lighting in water closet: 6.卫生间(水厕)一般照明所需的最低流明/瓦(lm/W)数值为:
7.Energy storage systems (ESS) most commonly rely on which type of battery due to significant improvements in energy density? 7.得益于能量密度的显著提升,能源存储系统(ESS)目前最常采用哪种类型的电池?
8.Min lumens/W for kitchen lighting: 8.厨房照明所需的最低流明/瓦(lm/W)数值为:
9.Portable appliance on 20 A circuit may not exceed: 9.连接在20安培(20 A)回路上使用的便携式器具,其功率不得超过:
10.What is the maximum allowable wattage for a 240 V, 30 A single-phase circuit supplying a residential electric heater? 10.对于一条为住宅电加热器供电的240伏、30安培单相回路,其允许的最大瓦特数(功率)是多少?
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