CATHODIC PROTECTION SYSTEMS (IMPRESSED CURRENT)FOR

0,06

MB

LOCK MITER GATES

37

stron

3382

ID

UNITED STATES ARMY CORPS OF ENGINEERS

2001

rok

PART 1 GENERAL

1.1 REFERENCES

1.2 UNIT PRICES

1.3 SYSTEM DESCRIPTION

1.3.1 General Description

1.3.2 Performance Requirements

1.3.2.1 First Criterion

1.3.2.2 Second Criterion

1.4 SUBMITTALS

1.5 QUALIFICATIONS

1.5.1 Organization's Experience

1.5.2 Contractor's Responsibilities

1.5.3 Corrosion Expert

1.6 PRE-INSTALLATION CONFERENCE

1.7 DELIVERY, STORAGE AND HANDLING

1.8 PROJECT/SITE CONDITIONS

1.9 QUALITY CONTROL

1.9.1 General

1.9.2 Reporting

1.10 MODIFICATION OF DESIGN

PART 2 PRODUCTS

2.1 MATERIALS AND EQUIPMENT

2.1.1 Direct Current Cables

2.1.1.1 Anode Lead Cables

2.1.1.2 Rectifier and Terminal Cabinets Connection Cables

2.1.2 Cable in Conduit

2.2 RECTIFIERS AND AUXILIARY EQUIPMENT

2.2.1 General

SECTION 13113A Page 1

2.2.2 Cabinets

2.2.3 Wheeled Rectifier Cabinets (Alternate 1)

2.2.4 Stationary Cabinets (Alternate 2)

2.2.5 Circuit Breakers

2.2.6 Step-down Transformers

2.2.7 Rectifier Transformers

2.2.8 Rectifiers

2.2.9 Ammeter and Voltmeter

2.2.10 Current Monitoring Shunt

2.2.11 Ammeter and Voltmeter Switches

2.2.12 Control and Instrument Panel

2.2.12.1 Tap Bars

2.2.12.2 DC Output Terminals

2.2.12.3 Components Identification

2.2.13 Anode Cable Leads

2.2.14 Surge Arresters

2.2.15 Wiring Diagram

2.2.16 Resistor and Anode Terminal Cabinet Wiring Diagram

2.3 CONDUIT AND FITTINGS

2.3.1 Nonmetallic Conduit

2.3.2 Rigid Metal Conduit

2.3.3 Conduit Fittings and Outlets

2.4 RESISTOR AND ANODE TERMINAL CABINETS

2.5 IMPRESSED CURRENT ANODES AND MATERIALS

2.5.1 General Requirements

2.5.2 Ceramic Precious Metal Oxide Coated Anodes

2.5.2.1 Conductive Precious Metal Oxide Ceramic Coating

2.5.2.2 Anode Substrate Material

2.5.3 Hi-Silicon Cast-Iron Anodes

2.5.3.1 Chemical Composition (Nominal)

2.5.3.2 Electrical Resistivity

2.5.3.3 Physical Properties (Nominal)

2.5.4 Ceramic Coated Titanium Anodes (Disk Type)

2.5.4.1 General

2.5.4.2 Impact Protection for Disk Anode Cables

2.5.4.3 Number of Ceramic Coated Titanium Disk Anodes

2.5.5 Hi-Silicon Cast Iron Button Anodes

2.5.5.1 General

2.5.5.2 High-Silicon, Cast-Iron Anodes (Button Type)

2.5.5.3 Anodes Number

2.5.5.4 Assembly

2.5.5.5 Impact Protection for Button Anode Cables

2.5.6 Ceramic Coated Titanium Segmented Rod Anodes

2.5.7 Hi-Silicon Cast Iron Sausage Anode Strings

2.6 IMPACT PROTECTION FOR RODS AND SAUSAGE-STRING ANODES

2.6.1 PVC Pipe and Metal Couplings

2.6.2 Protective Angle Irons

2.6.2.1 PVC Piping

2.6.2.2 Painting

2.7 SPARE PARTS

2.8 SPECIAL TOOLS

2.9 MARKINGS

2.9.1 General

2.9.2 Rectifier Cabinets

SECTION 13113A Page 2

PART 3 EXECUTION

3.1 INSTALLATION AND COMMISSIONING

3.2 WIRING

3.2.1 Gate Structure at Control Room

3.2.2 Rectifier on the Lock Wall

3.2.3 Wiring on the Gate Structure

3.3 ROD AND SAUSAGE ANODE INSTALLATION

3.3.1 Metal Pipe Couplings for PVC Pipe

3.3.2 Assembly of Titanium Rod Anode

3.3.3 Suspension of Anode Rod or String Assemblies

3.4 DISK AND BUTTON ANODE INSTALLATION

3.4.1 General

3.4.2 Impact Protection Pipes Installation

3.4.3 Disk Anode Installation

3.4.4 Button Anode Installation

3.5 RECTIFIER CABINET INSTALLATION

3.6 RESISTOR AND ANODE TERMINAL CABINETS INSTALLATION

3.7 REPAIR OF EXISTING WORK

3.8 SYSTEM COMMISSIONING

3.8.1 General

3.8.2 Insulation Testing

3.9. SYSTEM COMPONENT CIRCUIT RESISTANCE MEASUREMENT

3.10 STRUCTURE-TO-REFERENCE CELL POTENTIAL MEASUREMENTS

3.11 RECTIFIER ADJUSTMENT

3.11.1 Locations of Structure-to-Reference Cell for Potential Measurements

3.11.2 Polarization Decay

3.12 RECORDING OF MEASUREMENTS

3.13 GUARANTEE

3.14 OPERATION AND MAINTENANCE INSTRUCTIONS

3.14.1 Operating Instructions

3.14.2 Maintenance Instructions

3.15 TRAINING COURSE