PV System Grounding

[vmmventura]

Good day!

Can I have an idea how to install the grounding and bonding system of a PV System for Residential?
Thank you so much!

 

[jaggedben]

Nowadays for a typical grid tied system there is nothing special. You need proper equipment grounding to the existing premises grounding system, which usually needs to be brought up to code when it's inspected.

See 690.47

It used to be more complicated.

 

[vmmventura]

Thank you very much! Does it need to have a set of grounded service conductor as well? I am kinda confused

 

[jaggedben]

Yes, sounds like you need to read up on some of the basics of a grid-tied solar system (also known as a 'utility interactive' system). Most often in residential in the US the PV is connected on the load side of the utility service disconnect, so there is no change to the service coming from the utility. Whether or not you need to bring a grounded conductor to the PV inverter depends on the inverter. Read the inverter manual.

Just noticed your location is the Philippines. Do they use the NEC?

 

[vmmventura]

Thank you very much for your response. We use NEC for reference. Is there a specific section in the NEC about grid-tied solar system?

 

[jaggedben]

690.47 (Also 690.41)