MIL-HDBK-1005/16
a)
An AC source of power with related breakers,
switches, and wiring
b)
A rectifier unit, to convert the AC to DC
c)
Negative cables from the rectifier to the buried
pipeline
d)
Positive cables from the rectifier to the buried
anodes.
The anodes are often graphite or cast iron
e)
Test stations containing wires from the buried
pipeline
f)
Insulated connections to isolate cathodically
protected pipeline from other structures
Annual checks of the impressed current cathodic
protection systems should be performed by certified personnel.
12.3.2.3 Design. Design cathodic protection systems in
accordance with standards developed by NACE International.
The following standards should be consulted:
a)
RP0169, Control of External Corrosion and
Underground or Submerged Metallic Piping Systems
b)
RP0572, Design, Installation, Operation, and
Maintenance of Impressed Current Deep Groundbeds
c)
RP0180, Cathodic Protection of Pulp and Paper Mill
Effluent Clarifiers (although the title specifies pulp and paper
mills, this standard is applicable to wastewater treatment plant
clarifiers)
d)
RP0286, The Electrical Isolation of Cathodically
Protected Pipelines
e)
RP0388, Impressed Current Cathodic Protection of
Internal Submerged Surfaces of Steel Water Storage Tanks
f)
RP0296, Galvanic Anode Cathodic Protection of
Internal Submerged Surfaces of Steel Water Storage Tanks
213
Previous Page
