Western Telematic TAN-1005 Manual Do Utilizador
Telematic
A member of The MTL
Instruments Group plc
Instruments Group plc
Surge Suppression
for Zone 0 Locations
for Zone 0 Locations
Synopsis
This note discusses the surge
protection requirements of
intrinsically safe circuits entering a
Zone 0 hazardous area. It
analyses the potential gradients
generated by lightning strikes and
their possible routes of invasion.
The alleviation of the problem at
the zone 0 interface transfers the
problem elsewhere and an
adequately safe pragmatic
solution is proposed.
protection requirements of
intrinsically safe circuits entering a
Zone 0 hazardous area. It
analyses the potential gradients
generated by lightning strikes and
their possible routes of invasion.
The alleviation of the problem at
the zone 0 interface transfers the
problem elsewhere and an
adequately safe pragmatic
solution is proposed.
991.115
03/99
Application Note
TAN 1005
TAN 1005