The EN 356 standard defines six resistance classes, starting with RC1 windows up to the safest class, the RC6 windows. Burglarproof windows are tested as follows:
must resist body based force impacts: Kicking or jumping, lifting, ripping out. This is not an effective burglary protection.
must resist an amateur culprit with simple tools for three minutes. The glass will not be tested! The specified P4A glass is broken in a few seconds. Recommendation: SILATEC P6B glass: five minutes.
must withstand the amateur culprit using a chisel or a crowbar for five minutes. The glass is also not tested here! The specified P5A glass is already broken after 15 seconds. Recommendation: SILATEC P6B glass: five minutes.
ten minutes resistance against an experienced culprit with a saw, striking tool and power drill. Again, the glass is not tested, any P6B is specified and this is destroyed after only 30 seconds. Recommendation: SILATEC P8B: approx. 20 minutes
15 minutes resistance against an experienced culprit with electrical tools (power drill, jigsaw or saber saw, angle grinder). The glass will also be tested here, but only common P7B glass is recommended: withstands less than one minute. Recommendation: SILATEC P8B: approx. twenty minutes
20 minutes resistance against an experienced culprit with powerful electrical tools (power drill, jigsaw or saber saw, angle grinder). By the way: If the engineers take a break and consult each other, then the clock will be stopped. It is therefore really more than 20 minutes. The glass will also be tested here, but only common P8B glass: withstands only approx. one minute. Recommendation: SILATEC P8B: approx. twenty minutes
