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Wiring
ET 200iS Distributed I/O Station
6-8
A5E00087831-02
Effects of a Lightning Stroke
Direct lightning strokes occur in lightning protection zone 0
A
. The effects of the
lightning stroke are high-energy, electromagnetic fields that must be reduced or
weakened from one lightning protection zone to the next using suitable lightning
protection elements/measures.
As described in the EN 1127-1 standard, lightning strokes ignite explosive
atmospheres directly. For this reason, our advice is to prevent the effects of direct
lightning strokes (galvanic coupling) reaching hazardous areas by taking suitable
building measures.
Lightning protection measures can, for example, prevent direct lightning strikes in
hazardous zones or to cables leading into hazardous zones. A closely meshed
equipotential bonding system involving all parts of the plant with a minimum of 16
mm Cu, prevents the flow of lightning currents within the plant. If these measures
are taken in the building, lightning protection zone 0
B
results for installation in the
outer area. Indirect lighting effects (inductive, capacitive) can be reduced to a
harmless level with suitable shielding measures and surge arresters.
Overvoltages
In lightning protection zone 0
B
, lightning currents can no longer occur, however,
pulse overvoltages can be expected in the magnitude of 10 kV and more. In
lightning protection zone 1 and high, in addition to the effects of a lightning strike,
overvoltages can also occur as a result of switching, induced voltage etc.
Lightning Protection Zone Scheme
The following schematic illustrates the lightning protection zone concept for a free-
standing building.
Summary of Contents for SIMATIC ET 200iS
Page 20: ...Preface ET 200iS Distributed I O Station 1 6 A5E00087831 02 ...
Page 34: ...Product Overview ET 200iS Distributed I O Station 2 14 A5E00087831 02 ...
Page 84: ...Installation ET 200iS Distributed I O Station 5 18 A5E00087831 02 ...
Page 168: ...Maintenance ET 200iS Distributed I O Station 8 6 A5E00087831 02 ...
Page 184: ...Terminal Modules ET 200iS Distributed I O Station 10 8 A5E00087831 02 ...
Page 188: ...Power Supply Module ET 200iS Distributed I O Station 11 4 A5E00087831 02 ...
Page 320: ...Dimension Drawings ET 200iS Distributed I O Station 17 4 A5E00087831 02 ...
Page 330: ......
Page 332: ...Certifications ET 200iS Distributed I O Station 20 2 A5E00087831 02 ...
Page 333: ...Certifications ET 200iS Distributed I O Station A5E00087831 02 20 3 ...
Page 334: ...Certifications ET 200iS Distributed I O Station 20 4 A5E00087831 02 ...
Page 336: ...Certifications ET 200iS Distributed I O Station 20 6 A5E00087831 02 ...
Page 337: ...Certifications ET 200iS Distributed I O Station A5E00087831 02 20 7 20 1 3 Power supply PS ...
Page 338: ...Certifications ET 200iS Distributed I O Station 20 8 A5E00087831 02 ...
Page 339: ...Certifications ET 200iS Distributed I O Station A5E00087831 02 20 9 20 1 4 4DI NAMUR ...
Page 340: ...Certifications ET 200iS Distributed I O Station 20 10 A5E00087831 02 ...
Page 341: ...Certifications ET 200iS Distributed I O Station A5E00087831 02 20 11 ...
Page 342: ...Certifications ET 200iS Distributed I O Station 20 12 A5E00087831 02 20 1 5 2DO DC25V 25mA ...
Page 343: ...Certifications ET 200iS Distributed I O Station A5E00087831 02 20 13 ...
Page 347: ...Certifications ET 200iS Distributed I O Station A5E00087831 02 20 17 ...
Page 348: ...Certifications ET 200iS Distributed I O Station 20 18 A5E00087831 02 20 1 8 2AI RTD ...
Page 349: ...Certifications ET 200iS Distributed I O Station A5E00087831 02 20 19 ...
Page 350: ...Certifications ET 200iS Distributed I O Station 20 20 A5E00087831 02 20 1 9 2AI TC ...
Page 351: ...Certifications ET 200iS Distributed I O Station A5E00087831 02 20 21 ...
Page 352: ...Certifications ET 200iS Distributed I O Station 20 22 A5E00087831 02 20 1 10 2AO I 2AO I HART ...
Page 353: ...Certifications ET 200iS Distributed I O Station A5E00087831 02 20 23 ...
Page 366: ...Marking ET 200iS Distributed I O Station 21 8 A5E00087831 02 ...
Page 416: ...26 Product Information RS 485 IS Coupler 6ES7 972 0AC80 0XA0 A5E00207628 01 ...
Page 417: ...27 Product Information RS 485 IS Coupler 6ES7 972 0AC80 0XA0 A5E00207628 01 ...
Page 418: ...28 Product Information RS 485 IS Coupler 6ES7 972 0AC80 0XA0 A5E00207628 01 ...
Page 419: ...28 Produktinformation RS 485 IS Koppler 6ES7 972 0AC80 0XA0 A5E00207082 01 ...
Page 420: ...28 Product Information RS 485 IS Coupler 6ES7 972 0AC80 0XA0 A5E00207628 02 ...