Federal Signal Corporation YAGI-1, Руководство по установке

Страница: 13 / 18

13
Installing the Antennas
Installation Manual
Federal Signal www.fedsig.com
Figure 4 Antenna Grounding
ANTENNA
LEAD-IN CABLE
TO RECIEVER
GROUND WIRE
GROUND CLAMPS
DISCHARGE
GROUND WIRE
GROUND CLAMP
TO MAST
SUITABLE GROUNDING
ELECTRODE DRIVEN
8' INTO EARTH (2.44 METERS)
EXAMPLE OF ANTENNA GROUNDING AS PER
NATIONAL ELECTRICAL CODE INSTRUCTIONS
(REFER TO N.E.C. FOR COMPLETE INSTRUCTIONS.)
A. USE NO. 10 AWG COPPER, NO. 8 AWG ALUMINUM,
NO. 17 AWG COPPER CLAD STEEL OR BRONZE WIRE, OR
LARGER AS GROUND WIRE FOR BOTH MAST AND LEAD-IN.
B. SECURE LEAD-IN CABLE FROM ANTENNA TO ANTENNA
DISCHARGE UNIT AND MAST GROUND WIRES TO HOUSE
WITH STAND-OFF INSULATORS, SPACED FROM 4 FEET
(1.22 METERS) TO 6 FEET (1.83 METERS) APART.
C. MOUNT ANTENNA DISCHARGE UNITS AS CLOSE TO WHERE
LEAD-IN CABLE ENTERS HOUSE AS POSSIBLE.
UNIT
291160
Antenna Grounding
Figure 6-10