Lenovo Safety and General Information Guide - Manual (Page 36)

Appendix B. Safety statements
31
■ Example of antenna grounding
a
c
b
d e
f
g
a Ground clamp
b Antenna lead-in wire
c Antenna discharge unit (NEC Section 810-20)
d Grounding conductors (NEC Section 810-21)
e Power service grounding electrode system (NEC Article 250, Part H)
f Ground clamps
g Electronic service equipment
The following notice applies to all countries and regions:
* Danger:
• Outdoor antenna grounding
If an outside antenna or cable system is connected to the equipment, be
sure the antenna or cable system is grounded as to provide some
protection against voltage surges and built-up static charges.
• Lightning
For added protection for this equipment during a lightning storm, or
when it is left unattended and unused for long periods of time, unplug
it from the wall outlet and disconnect the antenna or cable system. This
will prevent damage to the video product due to lightning and power
line surges.