ДСТУ EN 12495:2022 Катодная защита стационарных стальных морских конструкций (EN 12495:2000, IDT)



ДСТУ EN 12495:2022
(EN 12495:2000, IDT)

Катодний захист стаціонарних сталевих морських конструкцій

 
   
 
 
     
Не є офіційним виданням.
Офіційне видання розповсюджує національний орган стандартизації
(ДП «УкрНДНЦ» http://uas.gov.ua)

Contents

Foreword

Introduction

1 Scope

1.1 Structural parts

1.2 Materials

1.3 Environment

2 Normative references

3 Terms and definitions

4 Design basis

4.1 Objectives

4.2 Cathodic protection criteria

4.3 Electrical current demand

4.4 Coatings

4.5 Cathodic protection systems - Anode dimensions

5 Design of galvanic anodes system

5.1 General

5.2 Design considerations

5.3 Galvanic anode materials

5.4 Location of anodes

5.5 Anodes' inserts and attachments design

6 Design of impressed current system

6.1 General

6.2 Design considerations

6.3 Equipment considerations

6.4 Location considerations

7 Design of monitoring systems

7.1 Objectives

7.2 Description

7.3 Potential measurements

7.4 Measurement of the anode electrical current output

7.5 Transmission of data

7.6 Control and monitoring of impressed current generators

8 Installation of cathodic protection and monitoring systems

9 Commissioning and surveying of cathodic protection systems

9.1 Objectives

9.2 Galvanic anode system

9.3 Impressed current system

10 Documentation

10.1 General

10.2 Galvanic anodes system

10.3 Impressed current system

11 Safety and cathodic protection

11.1 Objectives

11.2 Physical obstructions

11.3 Electric shock

11.4 Gas evolution

Annex A (informative) Guidance on current requirement for cathodic protection of fixed steel offshore structures

Annex B (informative) Anode resistance and life duration formulae

Annex C (informative) Recommendations for anode installation

Annex D (informative) Safety precautions for impressed current system

Annex E (informative) Typical electrochemical characteristics for commonly used impressed current anodes

Bibliography