Parssaman

With the aim of converting raw materials to more invaluable products, suitable for export, National Petrochemical Company (NPC) is constructing the longest ethylene pipeline in the world, in southern and western areas of Iran. This pipeline begins in Assaluyeh and will transmit 3500 kilo tons of ethylene per year produced in the Assaluyeh and Mahshahr plants to several petrochemical plants in its way to Mahabad. These petrochemical plants are located in Mamassani, Gachsaran, Dehdasht, Boroujen, Andimeshk, Lorestan, Kermanshah, Hamedan, Kordestan, Mahabad, & Miyandoab.

West Ethylene Pipeline (WEP) and its branches have a total length of about 2200km, and by the beginning of 2009, 63% of the main pipeline had been constructed. There are 82 Break Valves (BVs) and 26 Launcher/ Receiver facilities (L/Rs) on the main pipeline, and there are also 7 branches with a total length of about 700km.

Scope of work

The scope of the project includes Engineering, Procurement, Construction and Commissioning of Telecommunications and SCADA (Supervisory Control and Data Acquisition) systems along the pipeline.

Telecommunication System:
The Telecommunications portion consists of several systems such as SDH Fiber Optic Transmission System, synchronization equipment and SDH and PCM Network Management Suites, PABX and Hotline Telephone System, VHF/UHF radio coverage along the pipeline etc.
Although SDH equipment are 1+1 protected, in order to provide more data path protection SDH Microwave Radio Links are proposed as an option to Client.
Fiber optic cable is the media for distributing voice and data services and for the connection of the pipeline PCS/DCS/ESD data from the RTUs and ESDs located on the LBV stations and CSs. UHF/VHF analog trunk radio coverage system enables communication among mobiles along the pipeline and also between the pipeline mobiles and central control rooms (CCRs) and local control rooms (LCRs). PABX and Hotline Telephone system provides direct access voice and data between the main control rooms and each compressor station, valve station and metering pressure regulation station. Also, Point-to-Point MW radios are recommended as optional communication paths.
Control System:
SCADA, ESD, and Leak and Phase Detection Systems are also part of this project. Data Gathering systems (RTUs) will be installed in Metering and regulation pressure Stations (MS), Compressor Stations (CS), Line Break Valves (LBV) and Launch/Receive Stations (L/R). SCADA system is designed with two-layer architecture and there are 3 MCCs (main control centers) and 8 LCCs (Local control centers) according to the basic engineering design. Information from all RTUs along the pipeline will be sent to the local and main control centers for processing using SCADA, ESD, and LDS software. In control centers, system engineers and operators will have access to this information and can remotely monitor the whole pipeline operation. Pipeline Emergency Shut Down (ESD) System is a SIL-3 safety system. In order to meet the Safety Integrity Level 3 requirements, a separate Ethernet over Fiber Optic path using Industrialized Switches is provided in order to convey safety information and commands.
Civil work:
Construction of 77 Telecom Buildings in Block Valve stations, foundation and installation of Telecom Towers and implementing Grounding and Lightning Protection system is also part of our commitments in this project. In order to provide power requirements of Telecom and SCADA equipment, Solar and TEG equipment are proposed as optional systems to our Client.

Scope of Supply

SDH Multiplexer 7065	NSN (Germany-Finland)
SYNC Equipment	Oscilloquartz (Switzerland)
Network Management System	Siemens (Germany)
Leak Detection Software	Atmos (UK)
RTU: Modicon M340	Schneider Electric (France)
Ethernet Switches	Hirschmann (Germany)
ESD System	Hima (Germany)
Central / Local control equipment	Siemens Fujitsu (Germany)
PABX & Hotline Telephone system	Siemens (Germany)
VHF Trunk Base Station and Mobile Radios	Teamsimoco(England)
Battery	PlatinIran (Iran)
Rectifier/Charger	PSP (Iran)

Main Features

First Priority National project
Developing Telecommunications Network along the longest Ethylene pipeline in the world
Integrating various telecom systems in order to meet voice, data, safety data and video conference requirements of the pipeline
Integrating Supervisory and Monitoring and also Safety systems and Telecom backbone Systems
Vast geographical area for project execution including all provinces along the west border of Iran
Different geoclimatic factors in project execution