Antenna – LG PF85U User Manual
Page 9

9
SAFETY INSTRUCTIONS
ANTENNA
Outdoor Antenna Grounding
y
If an outdoor antenna is installed, 
follow the precautions below. An 
outdoor antenna system should not 
be located in the vicinity of overhead 
power lines or other electric light or 
power circuits, or where it can come 
in contact with such power lines or 
circuits as death or serious injury 
can occur. Be sure the antenna 
system is grounded so as to provide 
some protection against voltage 
surges and built-up static charges. 
Section 810 of the National Electrical 
Code (NEC) in the U.S.A. provides 
information with respect to proper 
grounding of the mast and supporting 
structure, grounding of the lead-
in wire to an antenna discharge 
unit, size of grounding conductors, 
location of antenna discharge unit, 
connection to grounding electrodes 
and requirements for the grounding 
electrode. 
Antenna grounding according to
the National Electrical Code, ANSI/
NFPA 70
Antenna Lead in Wire
Grounding Conductor
(NEC Section 810-21
)
Antenna Discharge Unit
(NEC Section 810-20)
Power Service
GroundingElectrode
System (NEC Art 250,
Part H)
NEC: National Electrical Code
Ground Clamp
Electric Service
Equipment
Ground Clamp
For USA
NOTE TO CABLE/TV INSTALLER
This reminder is provided to call the 
CATV system installer’s attention to 
Article 820 - 40 of the National Electric 
Code (U.S.A.). The code provides 
guidelines for proper grounding and, 
in particular, specifies that the cable 
ground shall be connected to the 
grounding system of the building, as 
close to the point of the cable entry as 
practical.
