Piping and Valves. Material failure mainly because of corrosion is a highly dangerous and expensive phenomenon in the offshore sector of the oil and gas industry, associated with severe negative consequences such as loss of asset, loss of production due to plant shutdown, loss of human life, and health, safety, and environment HSE problems e. Additionally, piping systems are produced in large numbers for the topside facilities in the oil and gas plants. Thus, the main aim of this paper is to introduce a novel approach for the piping material selection in the offshore industry to minimize the risk of piping corrosion and weight reduction with an optimum cost. The central focus of the study is to develop a material selection tool based on a systematic material selection approach and the existing literature, standards, and specifications.
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Edition 4, February Telecom systems. Standards Norway Strandveien 18, P. Copyrights reserved. Normative references. Informative references. Terms and definitions. Telecommunication subsystems. Emergency communication. Telecommunication equipment location. Ignition source control for telecommunication systems. Common requirements for system design. Equipment location. Telecommunication cable installation requirements. General cable installation requirements. Equipment earthing and bonding.
Marking and labelling. Bulk materials. Annex A Normative Data sheets for field equipment. Annex B Informative Typical installation drawings. Page 3 of The NORSOK standards are developed by the Norwegian petroleum industry to ensure adequate safety, value adding and cost effectiveness for petroleum industry developments and operations. The NORSOK standards are normally based on recognis ed international standards, adding the provisions deemed necessary to fill the broad needs of the Norwegian petroleum industry.
Annex A is normative and Annex B is informative. The standard has been restructured compared to the previous version. Page 4 of This NORSOK standard describes the basis for design, engineering and installation of telecommunication systems for an offshore installation. Revision status. Edition 4 of February Public address and general alarm PAGA. Telephone system PABX. Office data network equipment. Office data and telephone cabling network.
Radio links. Satellite links. Wireless broadband access network. Vessel network coastal VHF and mobile telephone base stations. Fibre optic cable links. General radio. UHF radio and paging. Audio and video entertainment. Personnel tracking. Closed circuit television CCTV. Meteorological observation. Marine radar and automatic identification system AIS. Aviation radar. Communication recorder. Shuttle tanker loading telemetry. Work over telemetry.
Pipeline telemetry. Navigational aids. Distance measuring instrument. Main distribution frame. Telecom power supply. Real time clock RTC. Telecommunication management system. The telecommunication subsystems given subsystem number, but no revision status, are normally specified by Company. The following standards include provisions and guidelines which, through reference in this text, constitute provisions and guidelines of this NORSOK standard.
Latest issue of the references shall be used unless otherwise agreed. Other recognized standards may be used provided it can be shown that they meet the requirements of the referenced standards. Page 5 of Assessment of inadvertent ignition of flammable atmospheres by radio-. FOR nr ,. IEC ,. NEK TS ,. Surface preparation and protective coating. Technical safety. Telecom subsystems. Company contractual responsible company. American Iron Steel Institute. European Committee for Electrotechnical Standardisation.
Page 6 of The telecommunication systems shall provide facilities to support safe and efficient operation. This includes systems for. During a hazardous or emergency situation it is essential that those telecommunication systems required remain active, and that they are designed not to create additional hazards. The system shall distribute. The PAGA system shall also be used for general announcements.
No single failure in equipment or cables, nor any single external event, shall cause significant reduction of PAGA sound level in any area. Function parameters and data for loudspeakers and flashing lights shall be measured and provided as stated.
On installations with drilling facilities a driller's intercom function according to specifications in NORSOK T- shall be installed. The function may be provided either by a drilling intercom system or by a UHF radio system.
Page 7 of A telephone system according to Company requirements sha ll be installed. The system shall provide internal. Function parameters and data for Ex telephones shall provided as stated in Annex A. The term PABX is used for the c entral part of the te lephone communication system, alt hough several technologies may be. The data network may be separated in several networks e.
The data network includes. The system shall. Access from fixed locations shall be via fixed operator control units or radios. In addition, access via the PABX can be used. The system shall handle emergency communication and shall be designed with high availability. The paging system should be interfaced to and utilize the same antenna combiner and antenna system as the UHF radio system.
This includes. Additional equipment shall be included to achieve an efficient and reliable operational radio communication to ships, helicopters, and other platforms. This includes radios in ECC, helitower, cranes and dedicated offices. As a minimum two independent permanent communication links to the onshore operation centre shall be provided, either directly or via other installations.
The communication links shall be designed for high reliability and high capacity to allow for emergency communication, daily operation and integrated operations. Applicable systems are.
Norsok Standard L-001
It replaces the edition. This standard should be seen in conjunction with other NORSOK standards for design, construction and installation of piping and systems. This fourth edition has, to a large extent, been simplified compared to previous edition. Projects shall develop pipe class sheets and valve data sheets to suit actual conditions, based on guidelines and requirements in this standard. The main focus is to establish simple, robust and cost efficient solutions. Material master sheets are included in Annex B and element datasheets ar found in Annex C. Additional requirements: ConocoPhillips.