ДСТУ EN ISO 15589-1:2022 Нафтова, нафтохімічна та газова промисловість. Катодний захист трубопровідних систем. Частина 1. Наземні трубопроводи (EN ISO 15589-1:2017, IDT; ISO 15589-1:2015, Corrected version 20...

ДСТУ EN ISO 15589-1:2022
(EN ISO 15589-1:2017, IDT; ISO 15589-1:2015, Corrected version 2020-11, IDT)

Нафтова, нафтохімічна та газова промисловість.
Катодний захист трубопровідних систем. Частина 1.
Наземні трубопроводи

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

Contents

Foreword

Introduction

1 Scope

2 Normative references

3 Terms and definitions

4 Symbols and abbreviations

4.1 Symbols

4.2 Abbreviations

5 CP personnel competence

6 Cathodic protection criteria

6.1 General

6.2 Protection potentials

6.3 Alternative methods

6.3.1 100 mV cathodic potential shift

6.3.2 Other methods

6.4 Criteria in the presence of a.c.

7 Pre-requisites for the application of cathodic protection

7.1 General

7.2 Electrical continuity

7.3 Electrical isolation

7.3.1 General

7.3.2 Locations

7.3.3 Isolating joints

7.3.4 Internal corrosion risks at isolating joints

7.3.5 Contacts between metallic structures

7.3.6 Electrical earthing system

7.4 Lightning and overvoltage protection

7.5 Coating

7.5.1 General

7.5.2 Factory-applied coatings

7.5.3 Field joint coatings

7.5.4 Coating for trenchless pipelines

7.5.5 Air to electrolyte interface

7.5.6 Compatibility of coatings and wraps with cathodic protection

7.5.7 Thermal insulation

7.5.8 Reinforced concrete weight coating

7.6 Selection of pipe trench backfill material

7.7 Buried casings for pipelines

7.7.1 General

7.7.2 Casings that shield cathodic protection current

7.7.3 Casings that pass cathodic protection current

7.8 Equipment for the reduction of a.c. interference

7.9 Equipment for the mitigation of d.c. interference

8 Basic requirements for cathodic protection design

8.1 General

8.2 Basic information for cathodic protection design

8.3 Contents of cathodic protection design report

8.4 Cathodic protection current demand

8.4.1 Calculation of the theoretical total current demand

8.4.2 Current demand based on coating breakdown factors

8.4.3 Current demand based on current density values for coated pipelines

8.5 Cathodic protection equipment

8.5.1 Cathodic protection cables

8.5.2 Cable connection

8.5.3 Precautions to respect for distribution boxes and test stations

8.6 Temporary protection

8.7 Specific case of existing pipelines

8.7.1 General

8.7.2 Parallel pipelines

8.7.3 Parallelism or crossing with a.c. power systems

8.8 Trenchless installation methods

9 Impressed current stations

9.1 General

9.2 Power supply

9.3 Groundbeds

9.3.1 General

9.3.2 Deep-well groundbeds

9.3.3 Shallow groundbeds

9.3.4 Impressed-current anodes and conductive backfill

9.4 Output control

9.4.1 General

9.4.2 Current distribution for multiple pipelines

9.4.3 Potential control

10 Galvanic anode systems

10.1 General

10.2 Design requirements

10.3 Zinc anodes

10.4 Magnesium anodes

10.5 Design of the anode system

10.6 Anode backfill

10.7 Cables and cable connections

10.8 Anode installation

11 Monitoring facilities

11.1 General

11.3 Description of test stations

11.4 Use of probes and coupons

11.5 Bonding to other pipelines

11.6 Test facilities at cased crossings

11.7 Test facilities at isolating joints

11.8 Line current monitoring test stations

11.9 Drain-point test facilities

11.10 Miscellaneous monitoring facilities

12 Commissioning

12.1 General

12.2 Preliminary tests

12.3 Startup

12.3.1 Impressed current stations

12.3.2 Galvanic anodes

12.3.3 Drainage stations

12.3.4 Test stations

12.4 Verification of cathodic protection effectiveness

12.4.1 General

12.4.2 Measurements of d.c. potential and a.c. voltage

12.4.3 Current measurements

12.4.4 Adjustments

12.5 Commissioning report

12.5.1 Installation documentation

12.5.2 Commissioning measurements

13 Monitoring, inspection, and maintenance

13.1 General

13.2 Implementation of inspection

13.3 Periodicities of inspection

13.4 Remote monitoring

13.5 Specialized surveys

13.6 Monitoring plan

13.7 Monitoring equipment

13.8 Maintenance and repair

14 Documentation

14.1 Design documentation

14.1.1 General

14.1.2 Construction details and installation procedures

14.2 Commissioning documentation

14.3 Operating and maintenance documentation

14.3.1 General

14.3.2 Inspection and monitoring data

14.3.3 Maintenance records

Annex A (normative) Cathodic protection measurements

Annex B (normative) Electrical interference

Annex C (informative) Fault detection of impressed-current systems during operation

Annex D (informative) Description of specialized surveys

Annex E (informative) Attenuation of protection

Annex F (informative) Electrical tests for isolating joints before installation

Bibliography