NEN EN 12007-4 : 2012
Current
The latest, up-to-date edition.
GAS INFRASTRUCTURE - PIPELINES FOR MAXIMUM OPERATING PRESSURE UP TO AND INCLUDING 16 BAR - PART 4: SPECIFIC FUNCTIONAL REQUIREMENTS FOR RENOVATION
01-12-2013
Foreword
1 Scope
2 Normative references
3 Definitions
4 Design
4.1 General
4.2 Pressure uprating
4.3 Selection of renovation technique
4.4 Consultation with third parties
5 Construction
5.1 General
5.2 Disconnection/Reconnection of sections of the
gas supply system
5.3 Excavation/No dig techniques
5.4 Laying
6 Pressure testing
7 Service line transfer
8 Commissioning and decommissioning
9 Record system
Annex A (informative) Chart of renovation techniques
Annex B (informative) Advantages and disadvantages of
renovation techniques
Annex C (informative) Renovation with continuous or discrete
pipe
Annex D (informative) Lining with close-fit pipe
Annex E (informative) Lining with cured-in-place pipe
Annex F (informative) Renovation by bursting or splitting
existing pipe pipe
Annex H (informative) Joint repairs
Annex J (informative) Resin lining
Annex G (informative) Renovation by the pulling or pushing
of the existing
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