SIL certificationIt is a third-party evaluation, verification, and certification that evaluates and confirms the Safety Integrity Level (SIL) or Performance Level (PL) of safety equipment based on standards such as IEC 61508 (GB/T 20438), IEC 61511 (GB/T 21109), IEC 61513, IEC 13849-1, IEC 62061, and IEC 61800-5-2.Functional safety certificationIt mainly involves document management (FSM) evaluation for the development process of security equipment, hardware reliability calculation and evaluation, software evaluation, environmental testing, EMC electromagnetic compatibility testing, and other contents.

SIL certification is divided into four levels, SIL1、SIL2、 SIL3、SIL4， This includes two levels: product and system. Among them, SIL4 has the highest requirements.

SIL2 and SIL3 certifications are two different levels among them. According to international certification standards, SIL3 level is higher than SIL2 level. Specifically manifested as:

For example, the probability of failure of an actuator at SIL1 level during continuous operation per lane hour should be controlled between ≥ 10-6 and<10-5. SIL2 is ≥ 10-7 to<10-6. SIL3 ranges from ≥ 10-8 to<10-7.

Of course, the requirements for products at SIL3 level are much higher than those at SIL2 level. Currently, most products are SIL2 orSIL3authenticationThe level is sufficient to meet the requirements.

For more information on SIL certification, please contact Zhongnuo Testing directly

Service Hotline: 18924609560 (same WeChat account)