Earthing of array (cable size)

[Glen Powell]

As with others my understanding is that the cream wire is used only when the "apperatus will not function at all" without an earth in this case it will function. I have already had many arguments with the NICEIC and The IET reference earthing of other devices and now this argument is becoming more common reference earthing of arrays on TL inverters.

My opinion forgetting V3 of the DTI guide and forgetting the manufacturers guidelines, the panels and their connections are class II and to add an additional circuit to that apperatus could actually create an electrical hazard rather than prevent.

 

[powervan]

Totally Agree with U but this is the one subject that has so many opions! also the book followers wont be swayed!! but its always a laugh looking at the subject on here just sums up the solar industry at MO !A JOKE)

As with others my understanding is that the cream wire is used only when the "apperatus will not function at all" without an earth in this case it will function. I have already had many arguments with the NICEIC and The IET reference earthing of other devices and now this argument is becoming more common reference earthing of arrays on TL inverters.

My opinion forgetting V3 of the DTI guide and forgetting the manufacturers guidelines, the panels and their connections are class II and to add an additional circuit to that apperatus could actually create an electrical hazard rather than prevent.

 

[edexlab]

ask him to show you tthe reg
Ask him to show you someone who can supply you with a 10mm cream cable
Ask him to do one!
never heard of it, never had it on my inspections.

I've sent him an email asking him to clarify what he means the trouble is you get opinions instead of facts sometimes
I think that you would be able to get cream coloured 10mm might cost a bit though as its a little unusual ,possibly used somewhere on ships any ex navy sparks might know
I wired a couple of narrow boats a few years ago and they used this colour 6mm as an identifying colour for parts of the Dc circuits along with numerous other colours .

 

[solway-energy]

hello guys, can i ask why you earthed the array in the first place? does "TL" refer to transformerless?

 

[spark 68]

May I ask if it is protective earth as well as a functional earth ?, as Iam not in the solar industry, but have had a similar argument (un-related subject) in the past.

Reg. 543.5.1 where earthing for combined protective and functional purposes are required, the protective measures shall take precedence. (including the G/Y colouring).

 

[powervan]

the eath is because its a TL inverta! 70% of TL instals in the country have no earth to array But because this was a defo inspection and a pme supply then 10mm g/y from array to rod is a MUST! the idea is if a voltage from panels/cables transfers to array then all metal work on array would have a voltage and you woudnt no till you got up there to work on roof with a nice alley ladder stuck in a wet garden you then grab nearest thing (the array)ZAPPPP ur on the floor! now i cover myself in a body condom (fettish thing) but i am in the minority? and i follow the rules just to keep life simples ! when the rules change (which they will) i wont be running a 10mm G/Y ! lets hope the one time it happens its someone stealing the lead)))))))))))))))))))) then i would call it FUNCTIONAL lol