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BS 6739:2009

Current
Current

The latest, up-to-date edition.

Code of practice for instrumentation in process control systems: installation design and practice
Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

31-12-2008

Foreword
1 Scope
2 Normative references
3 Terms, definitions and abbreviations
   3.1 Terms and definitions
   3.2 Abbreviations
4 Personnel safety
   4.1 General
   4.2 Responsibilities
   4.3 Permit-to-work
   4.4 Work equipment
   4.5 Personal protective equipment
   4.6 Lifting and handling operations
   4.7 Working at height
   4.8 Safe access and egress
   4.9 Safety signs and signals
   4.10 Materials, dust and escaping
         fumes, gases and process fluids
         giving rise to fire, asphyxiation, toxic
         or explosion hazard
   4.11 Physical agents
   4.12 Work in confined spaces
   4.13 Pressure equipment
   4.14 Work on or with electrical systems
         and equipment
   4.15 Potentially explosive atmospheres
   4.16 Ionizing radiation and radioactive substances
   4.17 Working with display screens
   4.18 Work on construction sites
5 Instrumentation in hazardous areas
   5.1 Classification of hazardous areas and selection
         of instrumentation
   5.2 Electrical apparatus
   5.3 Batteries, power packs and portable
         electrical equipment
   5.4 Non-electrical equipment
6 Documentation
7 Process sensors and measuring devices
   7.1 Flow
   7.2 Pressure
   7.3 Temperature
   7.4 Level
   7.5 Mechanical measurements
   7.6 Weighing machines
   7.7 Density measurement
   7.8 Multivariable transmitters/controllers
   7.9 Quality measuring instruments
   7.10 Fibre optic instrumentation
8 Communication
   8.1 SMART instrumentation
   8.2 Security of communications
   8.3 Wireless instruments
   8.4 Fibre optic device communication
   8.5 Modems
9 Pollution prevention and control
   9.1 General
   9.2 Stack emissions to air
   9.3 Monitoring discharges to water and sewer
   9.4 Energy efficiency
   9.5 Electromagnetic compatibility (EMC)
   9.6 Waste from electrical and electronic
         equipment (WEEE)
   9.7 Restricted substances
   9.8 Batteries (including battery packs,
         button cells and accumulators)
10 Regulating devices
   10.1 Mechanical protection
   10.2 Pre-installation checks
   10.3 Control valve installations
   10.4 Access for testing and maintenance
   10.5 Environmental protection
   10.6 Piping
   10.7 Control valve bodies
   10.8 Control valve actuators
   10.9 Auxiliary equipment
   10.10 Variable speed drive (VSD) systems
11 Pneumatic and hydraulic supply systems
   11.1 General
   11.2 Pneumatic supply systems
   11.3 Hydraulic supply systems
12 Safety-related instrumentation
   12.1 General safety compliance
   12.2 Installation and commissioning planning
   12.3 Safety function proof testing
   12.4 Redundancy
   12.5 Cabling and piping
   12.6 Identification
13 Control room, associated equipment
   rooms and electronic systems
   13.1 General
   13.2 Location and environment
   13.3 Earthing
   13.4 Electrical power supplies
   13.5 Protection
   13.6 Data transmission systems
   13.7 Field equipment
   13.8 Testing and commissioning
14 Instrument piping and tubing
   14.1 General
   14.2 Air supply piping
   14.3 Transmission/signal tubing
   14.4 Process impulse piping
   14.5 Piping and tubing supports
15 Instrument cabling
   15.1 General
   15.2 Cable classification
   15.3 Signal cables
   15.4 Temperature signal cables
   15.5 Coaxial cables
   15.6 Fibre optic cables
   15.7 Fieldbus cabling
   15.8 Information technology cabling
   15.9 Fire and gas detection equipment
         cabling
   15.10 Safety-related system cabling
   15.11 Mineral insulated copper cables (MICC)
   15.12 Cable routing
   15.13 Cable separation
   15.14 Instrument cable installation
   15.15 Junctions and terminations
   15.16 Cable tray and supports
   15.17 Cable trenches
   15.18 Cable marking
   15.19 Panel wiring
16 Earthing
   16.1 General
   16.2 Design considerations
   16.3 Control room and associated rooms
   16.4 Control centre earthing
   16.5 Cable earthing
   16.6 Field-mounted instrument enclosures
   16.7 Instrument cable racks, trays and
         conduit
   16.8 Installation guidance
   16.9 Conformity to design
17 Electrical power supply systems
   17.1 General
   17.2 Power supply categories
   17.3 Design considerations
   17.4 Power supply sizing
   17.5 Supply protection and isolation
   17.6 Intrinsically safe power supplies
18 Installation
   18.1 Installation and documentation
   18.2 Installation drawings
   18.3 Instrument protection and storage
   18.4 Instrument mounting and accessibility
19 Testing and verification
   19.1 Responsibility for testing and approval
   19.2 Testing before commissioning
   19.3 Software
   19.4 Inspection upon receipt
   19.5 Pre-installation testing
   19.6 Pressure testing of instrument piping
         and tubing
   19.7 Testing of instrument cables
   19.8 Pre-commissioning (including loop
         testing)
   19.9 Check sheets
20 Commissioning and acceptance
   20.1 Commissioning
   20.2 Acceptance
Annexes
Annex A (informative) - Guidance on legislation
Annex B (informative) - List of test and calibration equipment
Annex C (informative) - Guidance on information to be included
                        on calibration and commissioning
                        documentation
Bibliography

Provides recommendations for, and guidance on, the design for the installation of instrumentation of measurement and control systems in the process industry, and the implementation and commissioning of this installation.

This British Standard gives recommendations for, and guidance on, the design for the installation of instrumentation of measurement and control systems in the process industry, and the implementation and commissioning of this installation. It is intended to be used as a manual of good practice on the site and also to assist those who design the installation.

NOTE The recommendations given in this British Standard are based on the assumption that all instruments will have been specified and all instrument panels will have been designed.

Committee
GEL/65
DevelopmentNote
Supersedes BS 6739(1986). (12/2008)
DocumentType
Standard
Pages
282
PublisherName
British Standards Institution
Status
Current
Supersedes

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BS 8444-3:1996 Risk management Guide to risk analysis of technological systems
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BS EN 61800-3 : 2004 ADJUSTABLE SPEED ELECTRICAL POWER DRIVE SYSTEMS - PART 3: EMC REQUIREMENTS AND SPECIFIC TEST METHODS

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