STANDARD OPERATIONAL PROCEDURE FOR INSTALLATION OF GAS PIPELINE SYSTEM

 

Site Visit
  • Contractors and a competent person will visit the project site.
  • During a visit to the project site, the contractor will make a sketch to identify the location of gas equipment, routes and safety distance that suitable for the installation of pipelines.
  • This layout will also take into account the use of gas to get the flow rate to determine the appropriate size of the pipe.

Preparation of plans and design drawings
  • The contractor is responsible for providing complete plan and design drawings of gas pipe installation.
  • Plan and system design drawings must have an appropriate scale in a show organized by all the details of the system of piped gas.
  • All plans and drawings shall be made in accord code of practice such as the MS 830 (Code of Practice for the Storage, Handling and Transportation of Liquefied Petroleum Gases), MS 930 (Code of Practice for the Installation of Fuel Gas Piping Systems and Appliances) & ASME B31.8 (Code for Gas Transmission and Distribution Piping System).

Design calculation
  • Besides providing design plans and drawings, the contractor is also responsible for providing a number of design calculation as follows:-
  • All drawings and design calculations shall competent person who is certified by the Energy Commission as follows:

To estimate the cost
  • From the sketch of the piping system, the contractor can make an estimation of the cost to be used in the works. This estimation can also be used to make an offer to the customer.

Application for Approval to Install Gas Pipeline
  • Before the gas pipe installation work done, gas contractor to do the work of gas installation is responsible for applying for Approval to Install (ATI) to the Director of the Energy Commission or Permission to Install (PTI) to the Director of the Department of Occupational Safety and Health.
  • The documents required with the application:
  • Each application submitted usually and approved.

Installation works carried out
  • Once approved, the work will be carried out and will be completed within 7-30 days depending on the capacity of the project.

Testing
  • All gas pipeline system that have been installed will be undergo pressure & leak testing whether using hydrostatic testing, compressed air and inert gas(nitrogen & carbon dioxide).
  • The test pressure must exceed the rate of operating pressure. For more information, please refer to the MS 930 books and Gas Piping System Guide issued by the Energy Commission.
  • Work testing has been completed will be certified by a competent person in accordance with their respective class installations like design and calculation validation.

Application for Approval to Operate Gas Pipeline
  • When the installation work has been completed, the contractor must make application for Approval to Operate (ATO) to the Director of the Energy Commission or Permission to Operate (PTO) to the Director of the Department of Occupational Safety and Health.
  • The documents required with the application:
  • Each application submitted takes 4 weeks for the approval.
  • Once approved, the gas piping system shall be submitted to the owner / representative of the owner.