About Specifications of ground wire for imported photovoltaic panels
Always use #6 AWG bare copper wire for outdoor grounding to meet National Electric Code requirements and pass inspections.
Always use #6 AWG bare copper wire for outdoor grounding to meet National Electric Code requirements and pass inspections.
Grounding and bonding is a subject area that can be confusing to many. In this blog post, we summarize key points according to the NEC. The NEC is the primary guiding document for the safe designing and installation practices of solar PV systems in the residential and commercial markets in the United States.
Article 690 of the NEC mandates that #8 AWG or #6 AWG are the smallest wires that can be used with grid tied solar panels and inverter systems, and for solar panel output circuits, #10 or #12 AWG are allowed. A ground rod is also recommended if the installation area is prone to lightning strikes.
The equipment in direct current (DC) portions of the PV system may be grounded using conductors as outlined above with appropriate connections to each metal surface. In general, when a copper wire is connected to a metal surface to be grounded, some sort of certified/listed grounding device must be used.
PV System Equipment Ground. NEC 690.45(A) requires that equipment grounding conductors for PV source and output circuits be sized in accordance with NEC table 250.122, which allows for a smaller gauge ground wire, such as a # 10 or #12 AWG, to be used in this portion of the PV system.
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About Specifications of ground wire for imported photovoltaic panels video introduction
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