Answer / jayeshsangani1988@gmail.c

zenner barrier is safety barrier for hazards area for current limiter,voltage limiter.
and zone for hazard area classification for duration based.
zone 1- explosive mixture of gas,vapor,is present in continuous
zone 2- explosive mixture of gas,vapor,is like to occur in normal operation
zone 3- explosive mixture of gas,vapor,isn't like to occur,and if occur is vary short time.probability is vary less in year

Answer / ram singh yadav

A Zener barrier is an associated equipment that is installed in the safe area. It is designed to limit the amount of energy that could appear in an electrical circuit passes through the hazardous area despite the connection before the barrier.

A barrier consists of:

1. Resistors to limit the current

2. Zener diodes to limit the voltage

3. Fuses to protect the components

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