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Login to Your Account. Remember Me? Register Forgot password? What's New? Likes: 0. Results 1 to 17 of Thread: Ot: When does a product need certification UL or such? Thread Tools Show Printable Version. Ot: When does a product need certification UL or such? Pretty much as the title says. I'm wondering at what point does a product need to go through all the hoops and testing to meet certain codes and such, UL, CSA, etc?
I'm assuming its mainly consumer products in very large quantities? We've got quite a few members here building and selling their own products, we had the patent vs. Is it mostly just a liability thing? Tough question. There's no law that says you have to do it except where there is. I think it can help reduce liability, but you're still liable if you fail to do everything possible to eliminate hazards. It's not cheap, a few thousand minimum. For industrial there may be other legal requirements, but for test equipment and small commercial electronics I've never worked for a place that bothered with UL.
If the equipment has anything digital and what doesn't today you usually need to test for FCC limits which most ignore for US products, as there's no enforcement for anything other than mass market stuff , and anything going to the EU will need expensive CE testing just to get in the door, both for electrical and machine safety. I did attend a discusion about a year ago about the process of UL listing a product. Here is what I gathered about the process: First off it is expensive and usually the market that the product is intended for will obviously have to be able to support the initial capital investment in the testing.
It is mostly a fitness or durability issue. Most of the time it is really costly and a lengthly process with every component and material needing to meet the intended purpose of the original design that was approved.
Some of the criteria depend on the use of the product: heat, cold, UV resistant, electrical safe, longetivity of the motors, and other industry standards applied to the design and function. The initial design has to be tested and then there are periodic testing and even the suppliers of parts will have to comply with testing to make sure it is built to the initial standard.
Parts and materials cannot be swapped without A: using a material or part that is already UL approved or B: retesting the product. When retesting the unit may not to have a completely thourough analysis, but it still has to verify its initial testing results. The manufacturer is licensing the use of the UL symbol to sell there product not unlike the use of the NFL or MLB and when a product falls out of acceptance the manufacturer and the suppliers are responsible to bring the product up to par before selling anymore units with the licensing either placed on the product, manual or packaging.
In the discusion I was involved with it was for a paper towel dispenser. All of the materials and basic components had to stay the same throughout the life of the product or be UL accepted for a similar product but it still had to go back through the UL to maintain compliance.
This was from the plastics used for every part to the wire and switches and motors. If a part or material changes it has to be reapproved in one fashion or another. Again this is what I took from my experience. It would seem that the product would have to be long term and large quantity to justify the expense. I designed, patented, manufactured and sold a UL listed product to close firedoors in skyscrapers.
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