Control Panels Certifications, approvals, listings, and safety | en 11
Bosch Security Systems, Inc. Installation and System Reference Guide 2016.06 | 08 | F.01U.303.996
1.2.1 Effects of lighting
Electronics involved in a direct lightning strike or near a lightning strike can show adverse
effects. When lightning strikes, several things happen:
– An electromagnetic wave spreads from the center point of the strike inducing high
voltages onto nearby conductors.
– The voltage changes substantially on electrical grounds near the lightning strike.
– High voltages are induced onto anything directly struck by lightning.
The effects of lightning can include trouble events, alarm events, and physical damage.
1.2.2 Installation precautions
To minimize the undesirable effects from lightning:
– Do not run wiring outside the building.
– If you install the unit in a metal building, keep the wiring at least 2 ft (0.61 m) away from
external metal surfaces. Make a proper earth ground connection.
– Earth ground the unit correctly. Do not use an electrical ground or telephone ground.
– Avoid running wires near telephone, data, or power lines. Locating control panel wiring at
least 2 ft (0.61 m) away helps reduce the effects of lightning.
– When your data lines must cross the path of AC or other wiring, cross perpendicular to
the lines.
1.2.3 Warranty
The warranty does not cover physical damage due to lightning.
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