UL Certification

[russ]

Yes, there is a lot of unsafe and non certified product coming from China, but of the Market nearly everything is made in part or whole in China anyway. So its the product and design certification, of which is partially based on trust. This is why you can buy an item directly from China for $200 or buy it with UL certification from a US company for $3,000 and they can be identical inside.

Don't bet your life on UL, CE or TUV testing either, its just a rock screen.

There is some good in the post but in particular I take exception with -

1) Quality - You need to stick with an international company that certifies the quality with their own name or a large Chinese company that has a name to protect. Solar is no different than toys or food and in that part of the world money comes first.

2) If you find a company selling something for 3000$ that you can buy for 200$ from China - stay away from the company as they are shysters. There would be few cases if any like this. The poster can provide names if they wish.

3) About the trusting the inspector (who may or may not know what he is doing) your PE (you have some reassurance here as you can sue the PE) and your own willingness to risk your life - most people have no idea what they are getting in to and are not capable of knowing there is such a judgement to be made.

Russ

[solarsolar]

Grid tied system need certificate such as UL for American , [...}

Well, that is not entirely true. I am involved in many grid tied utility scale projects, so-called "behind a fence" projects with 1,000V design, and in this projects, depending on the local AHJs

[russ]

[QUOTE=solarsolar;38337]Well, that is not entirely true. I am involved in many grid tied utility scale projects, so-called "behind a fence" projects with 1,000V design, and in this projects, depending on the local AHJs