• Replaces magnesium anodes for cathodic protection of underground structures.
• Useful for spot protection in areas not adequately covered by primary system.

• Constant current output does not vary with seasonal variations in resistivity.
• 20-year design life with proven high silicon iron anodes.
• Direct hook-up to 115 Vac.
• 120 or 240 mA output current.
• Other sizes available on special order.

Packaging

• 3" (8 cm) diameter cotton bag, 20" (50 cm) long'

Design Compatibility

Model RI ICE Pack™ is a self-contained unit consisting of a constant current rectifier connected to a high silicon iron anode and packaged in a cotton bag containing calcined petroleum coke. The rectifier circuit is available in both half wave and full wave models. Half wave rectifiers are used for a structure electrically bonded to the power company grounding system. Full wave units are used when the structure is electrically isolated from the grounding system.

This unique circuit does not generate heat; therefore, it is completely encapsulated in potting compound to protect it from the environment. Each ICE Pack™ can replace several magnesium anodes. With a design life of 20 years, it also eliminates one anode replacement cycle. ICE Pack™ is a cost-effective alternative for cathodically protecting any underground structure.

Performance Characteristics

The 120 mA and 240 mA models will maintain rated output in groundbeds up to about 50 ohms.

Anode voltage adjusts automatically to keep current at the rated level. To prevent a reduction of current output in high resistivity soil, the groundbed resistance can be reduced by increasing the length of the coke column.