Electrical Code
Note: To the display system installer: This reminder is provided to call attention to Article 820-44 of
the National Electric Code that provides guidelines for proper grounding and, in particular, species
that the cable ground shall be connected to the grounding system of the facility. Outlet shall be
installed near the equipment and shall be easily accessible.
Antenna discharge unit
(NEC Section 810-20)
NEC National Electric Code
Ground clamp
Electric service
equipment
Ground clamps
Power service grounding
electrode system
(NEC Art 250 Part H)
Grounding conductors
(NEC Section 810-21)
Antenna lead-in wire
Note: Installation shall incorporate UL Listed external surge protection rated 2500 Vpk or less, for 150
to 300 Vac mains, installed in accordance with Article 285 of ANSI/NFPA 70 or applicable local codes.
Power Source
The display must be connected to a mains socket outlet with a protective grounding connection.
The mains plug is used as the disconnect device and shall remain readily accessible.
Electrical installation shall be in accordance with the applicable parts of Chapter 8 of ANSI/NFPA70.
An outdoor antenna should not be located near overhead electrical lines or any electrical circuits.
If an outside antenna is connected to the receiver, conrm that the antenna system is grounded to
protect against voltage surges and built up static charges. Section 810 of the National Electric Code,
ANSI/NFPA No 70-1984, provides information with respect to proper grounding for the mast and
supporting structure, grounding of the lead-in wire to an antenna discharge unit, size of grounding
connectors, location of antenna discharge unit, connection to grounding electrodes and requirements
for the grounding electrode.
This display operates on 100-240 volts 50-60 Hz, AC current. Insert the power cord into a 220-240
volt 50 Hz outlet. Never connect the display to direct current or anything other than the specied
voltage.
To prevent electric shock from the display, do not use with an extension cord, receptacle, or other
outlet unless the blades and ground terminal can be fully inserted to prevent blade exposure.
All secondary lines must be routed through grounded conduit and kept separate from AC line.
