What Does TL-15?

October 13th, 2010

safe.jpgUnless you’re a safe expert, you probably have no idea where to start when you go shopping for a safe. Luckily, manufacturers have anticipated this and Underwriters’ Laboratories offers standardized safety ratings to help you make an informed decision. These straightforward ratings grade the safes on a myriad of factors—from fire ratings to impact tests.

One of the primary indicators of a safe’s effectiveness is the TL, which indicates the net working time. In order to compute the TL, Underwriters’ Laboratories attempts to break into the safe using state-of-the-art equipment and technologies. A TL-15 safe, for example, has a working time of 15 minutes. This means that the safe withstood efforts to be cracked for at least 15 minutes.

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