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Dimensions
Section 10
Selection guide
Heavy equipment
Lightning
protection
9
Heavy equipment
Medical, production,
or heavy computer
processing infrastructure,
etc.
Equipment to be
protected
Determine the
architecture of
the building
Risk level of the
impact of a
lightning strike
Choice of type of
surge arrester
Alternative
solution
Quick
PRD20r
PRD20
OR
PF20
Quick
PRD8r
PRD8
OR
PF8
PRD65
Combi
PRF1 +
Quick
PRD40r
Combi
PRF1 or
PRF1
Master
+ Quick
PRD40r
Combi
PRF1 or
PRF1
Master
+ Quick
PRD40r
PRD65
Combi
PRF1 +
PRD40
Combi
PRF1
or
PRF1
Master
+
PRD40
Combi
PRF1
or
PRF1
Master
+
PRD40
OR
PF65
Combi
PRF1 +
PF40
Combi
PRF1
or
PRF1
Master
+ PF40
Combi
PRF1
or
PRF1
Master
+ PF40
Lightning can also propagate through telecommunications
and computer networks.
It can damage all the equipment connected to
these networks: telephones, modems, computers, servers,
etc.
Protection of telecommunications and computer
equipment
Choice of surge arresters
PRC PRI
Analogue telephone networks < 200 V
b
b
Digital networks, analogue lines < 48 V
b
b
Digital networks, analogue lines < 6 V VLV load supply < 48 V
b
b
Single
switchboard,
main
switchboard
Dedicated
protection,
more than 30
m from a
switchboard
Distribution
board
1
2
3