This standard G 1000 contains requirements for the qualification of personnel and the organization of companies for the operation of installations for the pipeline-bound supply of the general public with gas (gas supply installations). Its purpose is the creation of a foundation for a safe gas supply as envisioned by the Energy Industry Act.

Operators of gas infrastructures shall have at their disposal high‑performance equipment, qualified staff and well‑functioning quality assurance measures or, alternatively, subcontract qualified experts and monitor the execution of the respective services. Furthermore, they shall be organised in such a way as to ensure the safe, reliable, environmentally friendly and economically efficient operation of their business (DVGW G 1000 (A)). This Guideline G 1001 aims at supporting operators with the compilation and review of their own process‑oriented risk management. Within the scope of this risk management, existing risks shall be determined, analysed, evaluated and where necessary measures to reduce the risk shall be taken. DIN EN 31010 provides a detailed description of risk assessment procedures. The Technical Guideline takes this risk assessment procedure as a basis of orientation and transfers it to the needs of gas infrastructures. In view of multiutility companies, there is a close interlinking with existing regulations in the power, district heating and water sectors. Document structure and individual chapters were harmonised.href= https://shop.wvgw.de/509309 >here.

This Guideline G 1002 describes the fundamentals of inhouse crisis management and offers relevant recommendations for operators as well as abundant information about the disaster and crisis management organisation of the local authorities. In the following, the term ?operator? will be used throughout regardless of the structure of ownership and type of installation. Operators shall have at their disposal high‑performance equipment, sufficiently qualified staff and robust quality assurance measures; alternatively, they shall subcontract qualified experts and monitor the execution of the outsourced service. Furthermore, they shall be organised in such a way as to ensure the safe, reliable, environmentally compatible and economically efficient operation of their business (DVGW G 1000 (A)). A risk management system with a focus on the individual gas supply processes will help meet these requirements (DVGW G 1001 (M)). Moreover, certain situations may arise that occur extremely rarely, are difficult to forecast and, therefore, impossible to make provisions for. Operators may not be able to control such situations without the involvement and help of the local authorities. It is impossible in such cases to act according to predefined instructions as such situations require operators to take appropriate decisions under consideration of all framework conditions relevant for the purposes of ensuring the operation of the plant. Crisis management is a tool designed with this purpose in mind; this Guideline G 1002 has been especially adapted by the DVGW to meet gas supply requirements. The implementation of an emergency and crisis management system outside normal organisation procedures is required for meeting this recommendation during emergencies and in times of crisis. This Guideline aims to enable operators to take action in an emergency or crisis so as to ensure to the greatest possible extent the continued supply of gas and the fastest possible restoration of normal operating conditions. The management tools required to achieve this goal are explained below. In due consideration of multiutility companies, this Guideline take into account existing regulations power, water and districtheating (cf. S1001 / S1002, W1001 / W1002, FW1001 / 1002).

G 102 Technical Guideline 03/2013

This code of practice represents the conceptual restructuring of the DVGW damage and incident statistics data registration procedure. Code of Practice G 410 details the criteria for data registration which form the basis of the new DVGW database. The new database contains all relevant information and features a user interface suitable for data entry and data provision. The reporting procedures are supervised and ensured by the DVGW and apply to both pipelines with a maximum allowable operating pressure of above 16 bar and analogously to gas‑related facilities, according to the recommendations of the International Gas Union.

This standard G 493-2 encompasses personal and professional requirements for companies providing maintenance for gas plants and installations that fall within the scope of DVGW G 495 (A), as well as biogas injection and refeeding plants as specified by DVGW G 265-2 or hydrogen injection plants as specified by DVGW G 265-4 (M).Companies which, within the context of comprehensive plant management, either as original operators or as contractors, are responsible for the maintenance of energy plants, and possess the required personal qualification and organization according to DVGW G 1000 (A), may conduct the maintenance of gas plants without certification as defined by this standard within the network which they have the abovementioned responsibility for. The prerequisite for the maintenance without certification as mentioned above is that the expert and tech-nical conditions detailed in this standard are met by the company’s own workforce or by service providers with a TSM certification or other corresponding certifications. The company shall appoint the experts re-sponsible for maintenance in writing. The fulfilment of these conditions can be verified e.g. during a TSM review according to DVGW G 1000 (A).

G 495 Technical Rule 11/2015