• NBN EN 13636 : 2004

    Current The latest, up-to-date edition.

    CATHODIC PROTECTION OF BURIED METALLIC TANKS AND RELATED PIPING

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    Published date:  12-01-2013

    Publisher:  Belgian Standards

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    Table of Contents - (Show below) - (Hide below)

    Foreword
    1 Scope
    2 Normative references
    3 Terms and definitions
    4 Criteria for cathodic protection
    5 Prerequisites for the application of cathodic
       protection
       5.1 General
       5.2 Electrical continuity
       5.3 Electrical separation
       5.4 External coating
    6 Base data for design
       6.1 General
       6.2 Neighbouring structures
       6.3 Soil environment
       6.4 Tank and piping data
            6.4.1 General
            6.4.2 Stored medium
    7 Design and prerequisites
       7.1 Structure materials
       7.2 Electrical separation
            7.2.1 General
            7.2.2 Isolating devices
            7.2.3 Temporary connections
            7.2.4 Permanently connected electrical equipment
       7.3 Explosion hazard prevention
            7.3.1 General
            7.3.2 Electrical equipment installation
            7.3.3 Isolating joints
       7.4 Other equipment
            7.4.1 Test station
            7.4.2 Coupons
            7.4.3 Mechanical connections including flanges
            7.4.4 Sleeve pipe
            7.4.5 Wall entries
            7.4.6 Drainage station
            7.4.7 Local earthing systems
       7.5 Galvanic anode systems
            7.5.1 General
            7.5.2 Materials
            7.5.3 Location
            7.5.4 Connection of anodes to the structure
       7.6 Impressed current systems
            7.6.1 General
            7.6.2 Components
       7.7 Cables
       7.8 Interference
    8 Installation of cathodic protection systems
       8.1 General
       8.2 Installation of cables
            8.2.1 General
            8.2.2 Cable connections to structures
       8.3 Installation of structures to be protected
            8.3.1 Buried structures
            8.3.2 Above-ground structures
            8.3.3 Isolating joints
       8.4 Anodes
            8.4.1 General
            8.4.2 Galvanic anodes
            8.4.3 Impressed current anodes
       8.5 Impressed current station
            8.5.1 Location
            8.5.2 Electrical installation
       8.6 Test stations, measuring points and coupons
       8.7 Bondings and drainage stations
       8.8 Labelling
       8.9 Installation checks
       8.10 As-built documentation
    9 Commissioning
       9.1 Preliminary checking
       9.2 Start-up
       9.3 Verification of the cathodic protection
            effectiveness
       9.4 Determination of relevant measuring points
       9.5 Commissioning documents
    10 Inspection and maintenance
       10.1 General
       10.2 Inspection
            10.2.1 General
            10.2.2 Functional checks of equipment
            10.2.3 Structure measurements
            10.2.4 Inspection intervals
            10.2.5 Inspection report
       10.3 Maintenance
            10.3.1 Cathodic protection equipment
            10.3.2 Instrumentation
    Annex A (informative) Electrical separation between the
                          structure to be cathodically
                          protected and the general earthing
                          system
       A.1 Isolation of electrical equipment
       A.2 Electrical equipment of protection class II or III
            (double isolation)
       A.3 Fault current breaker with local earthing system
       A.4 Isolating transformer
       A.5 Example with d.c. decoupling unit
    Annex B (informative) Groundbed data
       B.1 General considerations
       B.2 Type of groundbed
            B.2.1 General
            B.2.2 Remote located groundbed
            B.2.3 Close located groundbed
       B.3 Anode type
            B.3.1 High-silicon cast iron anodes
            B.3.2 Mixed-metal oxide anodes
    Annex C (informative) Extract of pr EN 50162
    Annex D (informative) Determination of inspection interval
       D.1 General
       D.2 Complexity of the cathodic protection system
       D.3 Coating imperfections
       D.4 Environmental conditions
       D.5 Susceptibility to damage by lightning or mechanical
            impact
       D.6 Risk of personal injury, environmental pollution or
            damage to property that could be caused by leakage of
            stored medium
    Bibliography

    Abstract - (Show below) - (Hide below)

    Defines the principles for the implementation of a system of cathodic protection against corrosive attacks on buried metal tanks and associated piping.

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    Document Type Standard
    Publisher Belgian Standards
    Status Current
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