is this right

Mr Mark Sparks · Nov 7, 2011

this pic is in our book about what to and not to earth on our pv course does it look correct with regards to the bottom sections about needing a stake or not

thanks mark

TedM · Nov 7, 2011

That diagram has been copied from the similar decision tree in the DTI PV Installation Guide v2

It looks to contain the same information to me.

This is the original.

Mr Mark Sparks · Nov 7, 2011

the wording is confusing its says pme-yes-bond to electrode

or pme - no -bond to main earth

doesnt it??

topquark · Nov 7, 2011

PME Yes, INSTALL and bond is the way I read it.

telectrix · Nov 7, 2011

as i know less about PV installations than i do about open heart surgery, i won't comment.

TedM · Nov 7, 2011

What it is saying is this.

IF you need to bond the array frame at all then:

- if the grid supply to the premises is PME then install an earth spike and bond the array frame to the spike

- if the grid supply to the premises is NOT PME then bond the array frame to the MET

Suggest you download a copy of the DTI Guide and read the relevant section. There is a link to it in the PV Guide sticky post in this section.

http://www.electriciansforums.net/photovoltaic-solar-panels-green-energy-forum/23511-pv-guide.html

saint · Nov 7, 2011

I heard that bonding frames when using TL inverters was being done away with.

Mr Mark Sparks · Nov 7, 2011

TedM said:
What it is saying is this.

IF you need to bond the array frame at all then:

- if the grid supply to the premises is PME then install an earth spike and bond the array frame to the spike

- if the grid supply to the premises is NOT PME then bond the array frame to the MET

Suggest you download a copy of the DTI Guide and read the relevant section. There is a link to it in the PV Guide sticky post in this section.

http://www.electriciansforums.net/photovoltaic-solar-panels-green-energy-forum/23511-pv-guide.html