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Internal Installation Verification Process and Meters

ΜΕΝΟΥ

General 

Delivery Point: This is the Meter outlet point, and the dividing line between the External and Internal Installations

External Installation: Means the entire installation under responsibility of the competent Operator lying between the Distribution Network and the Delivery Point to the Final Customer, including the metering device.

Internal Installation: Means all piping, appliances, devices, shafts, structural, and other related fittings from and after the Delivery Point as far as the installation’s gas exhaust.

Gas Meter: Means the gas volume metering mechanism, installed by the Operator at the Delivery Point, and its exit, and shall comprise the point of Supply and Delivery, i.e. the point of transfer of the ownership of the gas from the supplier to the consumer determining the end point of the internal gas installation.

The 'Technical Regulation for Internal natural gas Installations with an operating pressure up to 500mbar' (Ministerial Decision No Δ3/Α/οικ.6598 Government Gazette No 976/Series II/28.03.2012) covers the safe design, safe construction, conversion, testing, initial commissioning and the safe operation and maintenance of gas installations operated by gaseous fuel - natural gas.

As far as internal Natural Gas installations with an operating pressure between 500 mbar and 1 bar are concerned, as of the date of publication of the above Regulation, the provisions of the Regulation published in Government Gazette No 963/Series II/15.07.2003 continue to apply, (except for those pertaining to materials and certificates of suitability).

For installations supplied with a pressure greater than 1 bar (mainly for industrial uses), the ‘Regulation for Internal Gas Installations with Operating Pressures of more than 50mbar up to 16 bar’, as per Ministerial Decision No Δ3/A/ 5286 Government Gazette 236, is applicable as of 28 March 1997.

Gas Installation File Submission Procedure - Verification of Technical Study

In case of new installations or changes (modifications or expansions) to an existing installation, the consumer (or his authorized representative) shall submit the respective study to the Gas Company drawn up by an engineer with the requisite legal authorisation. The study shall include, not limited to, at least the following:

  • a technical description containing details, among other things, of the materials to be used,

  • calculations,

  • floor plans, isometric design plans, and, if required, cross-sections or multi-view projection drawings.

    After submission of the installation file, the Gas Company will proceed with review and evaluation of the gas installation study within eight working days.

    The Gas Company will approve the engineering design studies regarding works and constructions that are concerned exclusively with internal natural gas installations.

    Technical Report Submission Procedure - Internal Installation Inspection

    Before the commencement of the works on the gas installation, the consumer shall assign the supervision of works to a Supervising Engineer.

    Forty-eight hours prior to the commencement of the construction works on internal installations, the consumer must notify the competent local Town Planning Service, which will notify the respective police station (Law 4067/2012).

    The Gas Company retains the right to carry out inspections during the construction phase.

    All work on the internal gas installation should only be carried out by licensed technicians and installers in accordance with the applicable legislation.

    Following completion of the construction works of the internal natural gas installation, the technical report on the installation prepared by the Supervising Engineer shall be submitted to the Gas Company, for a temporary supply, for the appliances to be adjusted. This report shall include:

  • A description of the installation, as built.

  • A certificate of compliance with the requirements of the Regulation indicating the works, materials used, and full details of the technical staff who executed the works of the installation.

  • Certificates of the tests and inspections carried out, which will also indicate the results thereof. The tests will also include strength and tightness tests.

  • An Operating and Maintenance Schedule for the entire gas installation.

    Temporary supply with gas, is performed after it has been confirmed that the installation complies with the provisions of the technical report on the installation. If any deficiencies or construction defects are identified, temporary gas supply will not be provided until such deficiencies or construction defects are rectified.

    Natural Gas File Application Completion - Issue of User License

    After temporary gas supply operation, the following supplementary documents to the Technical Report shall be submitted to the Gas Company:

  • A certificate of completion of the installation and adjustment of the gas supply equipment for final gas supply.

  • Inspection sheets for boilers or other gas appliances in accordance with applicable legislation.

    After the final inspection of the supplementary technical report documents and verification of the conformity of the entire technical report with applicable legislation and the provisions of the Regulation, the User License for the installation, which also approves the permanent supply of gas, will be issued.

    The Gas Company may suspend the temporary provision of natural gas if it finds that the above conditions for the issue of the license are not met.  

     *In the case of any matters not specifically referred to, the requirements of Applicable Legislation and the Technical Regulation shall apply in full. 

     Natural Gas Meters

    Meters are installed exclusively by the Operator in accordance with the applicable Technical Regulations. Their dimensions are proportional to the power of the installed devices and the Connection Contract.

    The placement of Meters, equipment recesses and cabinets with the respective doors, where constructed at the responsibility of the Final Customer, must have the specified dimensions indicated. Locking of the equipment recess covers or cabinets must be of the type specified by the Operator.

    It is forbidden to apply paint, or to place heavy or bulky objects or corrosive substances around or above the meter, to place electrical installations or devices in cabinets or equipment recesses, or to modify the equipment recess or the cabinet itself.

    The gas Meter remains at the property of the Operator and the Final Customer is bound to guarantee free access thereto, for as long as the meter remains on their premises, to employees and authorised representatives of the Operator who carry company identity cards, for all types of works, including reading and recording data, inspections, and the various technical interventions.

    The Operator may place security markings and seals on the Meter as well as on the inlet and outlet valves.