Certifications are a great tool to guarantee the quality of products, opening the doors to different types of markets, but not all of them are carried out with the same analyzes and tests. In this entry we tell you from the hand of Top Cable what the UL certification consists of.
UL certification comes from the acronym for Underwriters Laboratories. They test each product against North American standards and test items for fire resistance and electrical safety requirements.
These are the advantages of having the UL certification:
-Experience. These laboratories have been guaranteeing product safety for 120 years.
-Requirement. Products are tested by a nationally recognized independent testing laboratory UL and are approved by the Occupational Safety and Health Administration.
-Regular controls. They are done regularly and randomly. If anomalies are detected, security certification is suspended until it is restructured back into product and passes testing again.
-Non-profit organization. The organization of this certification does not earn money with economic contributions from companies, so if it is obtained it is because the product deserves it.
-Global market. It is an international certification, which reflects the high value acquired by the products that obtain it. In addition, companies have easier international distribution.
Cables need UL certification to be truly safe. If resistance to insulation, electric shock or high temperatures is not checked, there may be considerable risk. Only by making sure that we purchase cables with UL can we work safely, since it is very difficult to forge its label, which even uses a holographic label.
Thus, it is necessary to know the different marks of the UL certifications, although the ones most related to cables are UL Listing for electrical appliances and electronic components and Recognized Component for construction materials and industrial equipment.
On the other hand, there are more than 1200 different standards, the most common cable manufacturer audits being those that seek to achieve the UL94 Standard seal for exposure to flame. These are the tests to achieve it:
-UL 94 V0, vertical burn, flame extinction after 10 seconds without dripping.
-UL 94 V1, vertical burn, flame extinction after 30 seconds without dripping.
-UL 94 V2, vertical burn, flame extinction after 30 seconds, dripping.
-UL 94 5VA, surface burn, flame out after 60 seconds, no hole. The most fire retardant.
-UL 94 5VB, surface burn, flame out after 60 seconds, with hole.
-UL 94 HB, self-extinguishing slow horizontal combustion. The least fire retardant.
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