CATHODIC PROTECTION SYSTEM (STEEL WATER TANKS)

0,04

MB

27

stron

2216

ID

UNITED STATES ARMY CORPS OF ENGINEERS

2000

rok

PART 1 GENERAL

1.1 REFERENCES

1.2 Related Requirements

1.3 SUBMITTALS

1.4 Services of Corrosion Engineer

PART 2 PRODUCTS

2.1 Impressed Current Anodes

2.1.1 High-Silicon Chromium Bearing Cast Iron

2.1.2 Aluminum Anodes

2.1.3 Precious Metal Anodes

2.2 GALVANIC ANODES

2.2.1 Magnesium Anodes

2.3 ANODE LEAD WIRES

2.3.1 Attachment of Anode Lead Wire

2.3.1.1 End Connected Anode

2.3.1.2 Center Connected Anode

2.3.1.3 Mixed Metal Oxide Anode Lead Wires

2.4 RECTIFIERS

2.4.1 Transformers

2.4.2 Electrical Ratings

2.4.3 Rectifying Elements

2.4.4 Enclosure

2.4.5 Oil Immersed Enclosures

2.4.6 Wiring and Schematic Diagram

2.4.7 Overload and Short Circuit Protection

2.4.8 D.C. Output Control

2.4.8.1 Transformer Taps

2.4.8.2 Automatic Controls

2.4.9 Output Voltage and Current Meters

2.4.10 Grounding Provisions

2.4.11 Fuses

SECTION 13112N Page 1

2.4.12 Surge Protection

2.4.13 Efficiency

2.4.14 Rectifier Replacement/Spare Parts List

2.5 REFERENCE ELECTRODES

2.6 SHUNT RESISTORS

2.7 CONDUIT

2.8 CABLE OTHER THAN ANODE LEAD WIRES

2.8.1 AC Power Supply Wiring

2.8.2 Anode Wire

2.8.3 Rectifier DC Positive (Anode) Header Cable

2.8.4 Cable Identification Tags

2.8.5 Wire Connectors

2.8.6 Insulating Tape

2.8.7 Splices

2.9 ANODE JUNCTION BOXES

2.9.1 Post Top Mounted Type

2.9.2 Wall Mounted Type

2.9.3 Terminal Boards

2.10 CLEVIS ASSEMBLIES

2.11 PIN INSULATORS

2.12 HANDHOLE ASSEMBLIES

2.13 EXOTHERMIC WELD KITS

PART 3 EXECUTION

3.1 INSTALLATION

3.1.1 Anode Installation

3.1.1.1 Icing Climates

3.1.1.2 Anode Placement

3.1.1.3 Anode Hangers

3.1.1.4 Handholes

3.1.2 Anode Connection

3.1.2.1 Anode Lead Wires

3.1.2.2 Anode Header Cable

3.1.2.3 Splices

3.1.3 Rectifiers

3.1.3.1 Rectifier Installation

3.1.3.2 Wire-To-Tank Connections

3.1.4 Permanent Reference Electrodes

3.1.4.1 Permanaent Reference Electrode Calibration

3.1.4.2 Installation

3.2 BOLTED AND RIVETED TANKS

3.3 GASEOUS EVOLUTION

3.4 CRITERIA FOR CATHODIC PROTECTION

3.4.1 Minimum

3.4.2 Maximum

3.5 FIELD QUALITY CONTROL

3.5.1 Destructive Testing

3.5.2 Wire for Power Service

3.5.3 Initial Cathodic Protection System Field Testing

3.5.4 Initial Cathodic Protection System Field Test Report

3.5.5 Government Field Testing

3.5.6 One Year Warranty Period Testing

3.5.7 Final Field Testing

SECTION 13112N Page 2

3.6 DEMONSTRATION

3.6.1 Instructing Government Personnel

3.7 SCHEDULE