INSULATED HEADER CABLE TO 

 POWER SOURCE AND TO 

 OTHER ANODES IN GROUND BED 



INSULATED CONNECTION 

 BETWEEN HEADER CABLE 

 AND ANODE PIGTAIL WIRE 



FILL CABLE TRENCH AND TOP OF 

 ANODE AUGER HOLE WITH TAMPED 

 EARTH AFTER COMPLETING 

 CONNECTIONS- 



-INSULATED CONNECTOR WIRE 

 FURNISHED WITH ANODE 



.05X 1.5 M OR .08XI.5M 

 HIGH SILICON CAST IRON 

 OR GRAPHITE 



CARBONACEOUS BACKFILL 

 MATERIAL; WELL TAMPED 



AUGERED HOLE FOR ANODE 

 ANO BACKFILL 



Figure 100. Anode in carbonaceous backfill. 



TO PIPELINE 



17 POUND PACKAGED 

 MAGNESIUM ANODE 



BACKFILL, PACKAGED, 

 SUPPLIED WITH ANODE 



i' 2" A- 



-.1 



TO PIPELINE: 



%^5 



vk '" ■ C&W*VMW/I$W~ 



.2 M 



I 



1.5 METER LONG 

 ANODE OF ZINC OR 

 MAGNESIUM 



-AUGER HOLE 



-CLAY-GYPSUM 

 BACKFILL MIXTURE 



Figure 101. Anodes in other backfill materials, 



364 



