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The safety barrier is also called the safety retainer. The safety interface of the intrinsically safe circuit can transmit electrical signals in both directions between the safe area (intrinsically safe) and the dangerous area (non-intrinsically safe), and it can limit the energy transfer from the safe area to the dangerous area caused by faults. Pepperl+fuchs safety barriers are intrinsically safe and explosion-proof in industrial control. Mainly used in petrochemical, coal, oil refining, explosion-proof and flammable occasions, and used for on-site explosion-proof.

Pepperl+Fuchs Safety Barrier

P+F related products include P+F Pepperl+Fuchs terminal, P+F Pepperl+Fuchs surge protector, P+F Pepperl+Fuchs power supply, Pepperl+Fuchs encoder, P+F Pepperl+Fuchs ultrasonic sensor, Pepperl+Fuchs photoelectric switch and so on. The installation of the safety barrier needs to pay attention to some defensive measures, such as the need to connect the ground wire. During the installation process, there is a very reliable grounding system that requires the isolation type required by the field instruments from the hazardous area. After connecting with the earth, the signal cannot be transmitted correctly, which affects the stability of the system. Intrinsically safe explosion-proof is the strength of safety barriers on site. Explosion-proof is divided into many kinds of explosion-proof types. Intrinsically safe type is one of the explosion-proof types and is the explosion-proof type with the highest safety level. The explosion-proof type is the general term. The difference between intrinsic safety and explosion-proof is that the intrinsic safety of the equipment material and circuit is required, and the explosion-proof is through the shell and additives. The electrical aspect is usually isolated by a relay, and the explosion-proof box is explosion-proof. At the same time, it also needs to have the performance of safe spark-type explosion-proof, and reliably prevent the mixed contact between the high voltage of the power supply and the signal. The safety barrier is designed as an energy-limiting interface between the field equipment and the control room equipment, so regardless of the control room equipment In a normal or faulty state, the safety barrier can ensure that the energy transmitted to the field device through it is intrinsically safe