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TABLE OF CONTENTS
1.0 GENERAL 2.0 DESIGN BASIS – GENERAL 2.1 CODES, STANDARDS AND REGULATIONS 2.2 STANDARDS FOR INSTRUMENT CONNECTIONS, MATERIAL & ENCLOSURE 2.3 ENGINEERING UNITS 2.4 CLASSIFICATION OF HAZARDOUS AREAS 2.5 EXPLOSION PROTECTED CONSTRUCTION 2.6 TRANSMISSION AND CONTROL SIGNAL 2.7 INSTRUMENT POWER AND AIR SUPPLY 2.8 UNINTERRUPTED POWER SUPPLY (UPS) 2.9 VESSEL INSTRUMENT NOZZLE SIZES AND INSTRUMENT CONNECTION SIZES 2.10 INSTRUMENT SCALES / DISPLAY UNITS 2.11 INSTRUMENT COLOURS 2.12 CONTROL PHILOSOPHY 2.13 CONTROL ROOM GENERAL REQUIREMENTS 3.0 INSTRUMENT SPECIFICATION 3.1 FIELD INSTRUMENTS 4.0 INSTRUMENT PANEL 4.1 INSTRUMENT PANELS IN CONTROL ROOM 4.2 LOCALLY MOUNTED PANELS 4.3 MAKE OF PANELS 5.0 DISTRIBUTED CONTROL SYSTEM (DCS) 5.1 MINIMUM FUNCTIONAL REQUIREMENT 5.2 OPERATOR STATION 5.3 ENGINEERING STATION 5.4 TYPES OF REPORTS REQUIRED 5.5 ACCESSORIES 5.6 TYPE OF CONTROLLER 5.7 SEQUENCE OF EVENT RECORDING 5.8 FOREIGN DEVICE INTERFACE REQUIREMENT 5.9 ADVANCE CONTROL FUNCTION REQUIREMENTS 5.10 TRAINING KIT 5.11 REDUNDANCY PHILOSOPHY 5.12 PROCESSOR LOADING PHILOSOPHY 5.13 SOFTWARE 5.14 DCS FURNITURE 6.0 OTHER INSTRUMENTATION SYSTEMS 6.1 GAS DETECTION 6.2 INTEGRATED MACHINE MONITORING SYSTEM
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1.0 GENERAL
1.1 This design basis covers the general requirements for instrumentation design and installation. Individual specifications shall be referred for more detailed information.
1.2 The following priority shall be applied when any contradictions are found between
4th priority : Standard Specifications & Engineering standards
Note: The contradictions shall be brought to the notice of Owner / Consultant immediately for approval.
1.3 LEGEND
Following marks shall be checked in the relevant square box.
X
: Applicable
M
: Mostly applicable
P
: Partially applicable
: Not applicable
D
: To be decided at the Detailed Engineering stage
2.0 DESIGN BASIS - GENERAL
2.1 CODES, STANDARDS AND REGULATIONS Design and terminology shall comply as a minimum, with the latest edition prior to the date of tender document of following codes, standard practices and publications.
AGA American Gas Association, Gas Measurement Committee Report No. 3 National Gas Fluid Measurement – Orifice Metering of Natural Gas Report No. 7 Measurement of Gas by Turbine Meters. ANSI / ASME American National Standards Institute / American Society of Mechanical
Engineers
B.1.20.1 Pipe Threads B.16.5 Steel Pipe Flanges and Flanged Fittings B.16.20 Metallic Gaskets for pipe Flanges, Ring Joint, Spiral wound and Jacketed.
ANSI / FCI American National Standards Institute / Fluid Control Institute 70.2 Control Valve seat leakage classification
API American Petroleum Institute RP 71.04 Control room environment. RP-520 Sizing, selection and installation of pressure relieving system in refineries. Part-I : Sizing and selection. Part-II : Installation RP 521 Guide for pressure relieving and depressurising systems.
RP 526 Flanged steel safety relief valves RP 527 Seat tightness of pressure relief valves.
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MPMS Manual of Petroleum measurement standards. RP 551 Process Measurement Instrumentation
Part 1 – Process Control and Instrumentation RP 522 Transmission Systems S 1101 Measurement of Petroleum Liquid Hydrocarbon by Positive Displacement
meter. S 2000 Venting Atmospheric and low pressure storage tank S 2534 Measurement of liquid hydrocarbons by turbine meter systems S 670 Vibration, Axial-Position and Bearing-Temperature Monitoring Systems ASME American Society of Mechanical Engineers Sec-VIII Boiler and Pressure Vessels Code rules for construction of pressure
vessels Sec-I Boiler and Pressure Vessels Code. Section-I 'Power Boilers' ASTM American Society for Testing of Materials BIS Bureau of Indian Standards BS British Standards BS-5308 Part-I Specification for PE insulated cables BS-5308 Part-II Specification for PVC insulated cables BS-7244 Flame Arrestors CENELEC / BSI CCOE Chief Controller of Explosives CMRI Council of Mining & Research Institute, India EN50014 Electrical Apparatus for Potentially Explosive Atmospheres – General
Requirements EN50018 Electrical Apparatus for Potentially Explosive Atmospheres –Flameproof
‘i’ DIN German Standards DIN-43760 Temperature Vs Resistance curves for RTDs( Class A) DIN-19234 Electrical Distance Sensors: DC interface for Distance Sensor and Signal
Converter. DIN-50049 Document on Material testing IBR Indian Boiler Regulation IEC International Electro technical Commission IEC 60079 Electrical Apparatus for Explosive Gas Atmosphere IEC 60085 Thermal Evaluation and Classification of Electrical Insulation. IEC 60332 Test on bunched wires or cables – Part III Cat. A IEC 60529 Degree of protection provided by enclosures. IEC 60534-2 Industrial Process Control Valves-Flow capacity. IEC 60584-2 Thermocouples – Tolerances IEC 60751 Industrial Platinum Resistance Thermometer Sensors IEC 61131 Parts 1-4 Programmable Controllers IEC 61158 Digital data communication for measurement & control field bus for use in
Industrial Control system. IEC 61508 Functional Safety of Electrical/Electronic/Programmable safety related
system IEC 61511 Functional Safety – Safety Instrumented Systems for the Process Industry. IEC 61804 Functional Blocks for process Control
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IEC 60801 Electromagnetic compatibility for Industrial Process measurement and Control equipment
IS Indian Standard IS-5 Colours for ready mixed paints IS-319 Specification for free cutting Brass bars, rods and sections. IS-1239 Mild steel tubes, tubular and other wrought steel fittings. IS-1271 Specification of Thermal Evaluation and Classification of Electrical
Insulation. IS-1554 PVC insulated (heavy duty) electric cables working Part 1 voltage up to and including 1100V IS-2074 Ready mixed paints, air drying, red oxide – zinc chrome. IS-2147 Degree of Protection provided by enclosures for low voltage switch gear
and control gear. IS-2148 Flame proof enclosures for electrical apparatus IS-3624 Specification for pressure and vacuum gauges IS-5831 PVC insulation and sheath of electric cables IS-7358 Specifications for Thermocouples IS-8784 Thermocouple compensating cables ISA Instrument Society of America S.5.2 Binary logic diagrams for process operations. S.50.02 FF standard for use in industrial control system, Part 2: Physical layer
specification and service definition. S.7.3 Quality standard for instrument air S.71.04 Environment condition for process measurement & control system. S.75.01 Flow equations for sizing control valves. S 75.17 Valve noise calculations ISO 5167 Measurement of fluid flow by means of orifice plates, nozzles and venturi
tubes inserted in circular cross-section conduits. ISA MC 96.1 Temperature Measurement Thermocouples NACE National Association of Corrosion Engineers MR-01-03 Sulphide stress cracking resistant metallic materials for oilfield equipment NEC National Electric Code NEMA National Electric Manufacturer’s Association ICS-6 Enclosures for Industrial control and systems NFPA National Fire Protection Association NFPA-496 Purged and pressurized enclosures for electrical equipment OSHA Occupational Safety and Health Authority.
OISD Oil Industry Safety Directorate SAMA Scientific Apparatus Maker's Association
(Notes) Manufacturer’s standard can be adopted, as to the items not specified in the above
standards. However, the same shall be brought to the notice of Owner / Consultant and approval to be taken accordingly.
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2.2 STANDARDS FOR INSTRUMENT CONNECTIONS, MATERIAL & ENCLOSURE Instrument connections, material of construction and type of enclosure protections shall be as
2.5 EXPLOSION PROTECTED METHOD & CONSTRUCTION 2.5.1 Type 2.5.1.1 Flame/Explosion proof
X Used for Solenoid Valves
X Use of field Process switches to be avoided as far as possible. If any used
for service such as Pump Seal Pr. Switch, Nitrogen Blanketing System etc
X Used for field transmitters requiring separate power supply
X
Used for Local Control Panels in Hazardous area (All internal components / instruments to be flame proof)
2.5.1.2 Intrinsically safe X
Used for Field Transmitters & SMART Positioner & Proximity Switches
2.5.1.3 Pressurized D
Pressurized panels to be used unless unavoidable.
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(Note: Field local panels shall be ex-proof as per area class and as a second preference air purge panels (Z or Y as per NFPA-496) shall be considered)
2.5.2 Accessories
2.5.2.1 Isolating type Intrinsic X
Required Not required safe barriers
- Analog Input X
Required Not required
- Analog Output X
Required Not required
- DC or RTD Input X
Required Not required
- Pulse Input X
Required Not required
2.5.2.2 Interposing Relays X
Required Not required
- Digital Input X
Required Not required
- Digital Output X
Required Not required Note: New improved version of relay such as miniature Relay etc to be used instead of
conventional relay. 2.5.3 Explosion class and ignition group
2.5.3.1 Flame/Explosion proof X
Ex d (to suit specified hazardous area)
2.5.3.2 Intrinsically safe X
Ex ‘ia’ (to suit specified hazardous area, enclosure shall be certified for flameproof)
2.5.4 Weather proof class X
IP- 65 for field instruments / junction boxes
X
IP- 20 for control room mounted equipment
Note: All Field Electronic Instruments shall have FRP canopy of minimum 4 mm thickness.
2.6 TRANSMISSION AND CONTROL SIGNAL
2.6.1 Electronic X
Foundation Field bus (�marked) Transmitters/Positioners
X Digital
(Note: Except Interlock/Trip related instruments, all field instruments shall be Digital with Foundation Field bus (����marked) wherever possible. Where Foundation Field bus instruments are not available, Digital HART instruments with 4~20 mA Output to be considered.)
2.6.2 Pneumatic X
Mfg. Standard
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2.7 INSTRUMENT POWER & AIR SUPPLY 2.7.1 Type of Power Supply
Type
Tolerance
Duration after mains failure
110 V AC UPS (New)
110 V + 10% 50 Hz+ 3%
30 minutes
24 V DC
(Regulated Power Supply)
24 V + 10% (26.4V)
24 V – 5% (22.8 V)
N/A
2.7.2.1 Power Supply Requirement 2.7.2.2 110 V AC, 50Hz from UPS for following,
Distributed Control System Package units instruments Alarm annunciator Programmable Logic Controller Field instruments requiring power supply Gas detection system Analyzers and analyzer system Chromatographs Solenoid valves
2.7.2.3 110 V AC
- Input interrogation voltage for field switches (Through interposing relays) - Input interrogation voltage for MCC signals (Through interposing relays)
2.7.2.4 110 V DC/240 V AC
- MCC control voltage for DCS / PLC outputs to MCC (Through interposing relays) (Control Voltage to be derived from MCC)
2.7.2.5 24 V DC (To be derived from 110 V AC UPS by equipment vendor) - Inside DCS / PLC cabinets as required
2.7.2.6 240 V AC, 50 Hz
- Level gauge illumination - Cabinets lighting (Control room mounted as well as local mounted ) - Analyzer shelter / house air conditioning
(Note: All bulk Electrical signals from MCC shall have Profibus connectivity with
DCS. However Trip signals shall be hardwired.)
2.7.3 Instrument air
2.7.3.1 Supply from X
Instrument air receiver and through Air dryer
2.7.3.2 Air Receiver holding time X
15 minutes (From Air receiver normal operating pressure to min. operating pressure of 4.0 kg/cm
2g )
2.7.3.3 Operating pressures Minimum: 4 kg/cm
2g
Normal: 5 kg/cm2g
Maximum 5.5 kg/cm2g
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2.7.3.4 All pneumatic instruments shall be designed to withstand instrument air pressure of 8 kg/cm
2g
2.7.3.5 All pneumatic instruments to be sized considering maximum design pressure of 3.5
kg/cm2g.
2.8 UNINTERRUPTED POWER SUPPLY (UPS)
2.8.1 UPS Output
X
110V AC, 50 Cycles/sec
2.8.2 Location of UPS X
in the new Control Room Building
2.9 VESSEL INSTRUMENT NOZZLE SIZES AND INSTRUMENT CONNECTION SIZES As per Job Specifications - Level Instrument – Minimum 2 inch
2.10 INSTRUMENT DISPLAY UNITS 2.10.1 Display Units
Flow (Liquid) X
kg/hr (chemicals) X
m3/hr
(utilities)
Flow (Gas) X
Nm3/hr
Flow (steam) X
kg/hr
Pressure Pascal X
kg/cm2 (g)
Absolute Pressure in Vacuum service X
mm Hg
Temperature X
°C
Viscosity X
cP
Density X
kg/m3
Level X
%
2.11 INSTRUMENT COLOURS 2.11.1 Frame or bezel of panel mounted instruments
X
Black
Manufacturer’s standards 2.11.2 Control valves and shutdown valves 2.11.2.1 Body
Control Valves X
Silver Manufacturer’s standard
Shutdown Valves X
Yellow
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2.11.2.2 Actuator - Control valve
- Fail Open X
Green Manufacturer’s standard
- Fail Close X
Red Manufacturer’s Standard
- Shutdown valve Silver X
Red
2.11.3 Other Instruments X
Manufacturer’s standard 2.11.4 Junction Boxes
X
Highbuild Epoxy Light Gray Shade 631 as per IS-5 for non-IS signals
X
Highbuild Epoxy Deep Sky Blue Shade for IS signals 2.11.5 Instrument panels (Control Room Rack Room mounted)
- Surface: Light Gray Equivalent to RAL7035 - Inside: Manufacturer Standard unless otherwise specified in Job specs.
2.11.6 Local mounted panels
- Surface: Light Gray Equivalent to RAL7035 - Inside: Brilliant white or Manufacturer Standard
2.12 CONTROL PHILOSOPHY
2.12.1 Mode of plant operation: Unit wise
2.12.2 Type of plant : ISBL (DHDT, HGU, SRU/TGTU, SWS/ARU) and OSBL
2.12.3 Control Room Requirement
Control Room Plant Units Location
Hazardous Area
Non-Hazardous Area
Floor
New Central Control Room (CCR)
ISBL & OSBL Area * * Ground (Cable entry through MCT blocks)
‘ * ‘ Area of classification shall be decided during preparation of plot plan.
2.12.4 Type of Control and Monitoring
2.12.4.1 Common Control System X
for ISBL & OSBL area.
2.12.4.2 Operating field room (OPFR) with 2 nos. operating stations – OPFR Quantity to be
decided during Detail Engineering. 1
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2.12.4.3 Field Control panel with Intrinsic Safe indicators, IS/Ex-Proof Push buttons, IS/Ex-Proof
Selector switches, IS Lamps of LED Cluster type, IS Alarm Annunciator D
2.12.4.4 Field transmitters shall have integral digital indicators with engineering units.
2.12.4.5 Final control elements shall be pneumatic unless otherwise specified.
2.12.5 Failsafe Interlock and Shut down System
2.12.5.1 Logic Representation X
As per ISA Other
2.12.5.1 Interlock Execution Independent of X
With Shutdown system Shutdown system
Type of hardware
DCS
Relay
X PLC
2.12.5.3 Shutdown system X
Dedicated Common for all
Block wise Units
Type of hardware Relay
X PLC
Note: Interlock and shutdown shall be executed in one separate PLC system.
2.12.5.4 PLC Configuration for shutdown
Dual Processor, single I/O
Dual Processor, Dual tested I/O
Triple Modular Redundant with hot stand-by I/O
X Quadruple Modular Redundant with hot
stand-by I/O For SOE refer clause 5.7
2.12.5.5 TUV Classification X
Required As per SIL levels 2.12.5.6 Process bypass switch
Software
X Hardwired with indication lamp (in
control room)
2.12.5.7 ESD switch location
Local D
As Applicable ( Refer Job specification)
Local Panel D
As Applicable ( Refer Job specification)
Control Room D
As Applicable ( Refer Job specification)
2.12.5.8 Electrical Drive start/stop
X Conventional LCS
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X Only stop key switches on Hard wired
console in control room as required 2.12.6 Package Unit Philosophy
All controls / interlocks shall be performed in main plant DCS / PLC.
2.12.6.1 Operating Philosophy
Units Control & Monitoring Interlock & Shutdown
Local LCR/CCR
DCS PLC EM relays
DCS PLC
ISBL CCR Yes
OSBL CCR
Yes (Common)
Tank gages CCR ATG
CCR: Centralized Control Room as listed in clause no. 2.12.3 above.
LCR: Localized Control Room for packages
ATG: Automatic Tank Gauging.
Note - ATG to be connected to existing OM & S.
2.12.6.2 Logic implementation for Package units through
X Plant PLC
Package vendor’s PLC 2.12.6.3 PLC configuration
Dual Processor, single I/O
Dual Processor, Dual redundant I/O
Vendor’s standard
Triple Modular Redundant
X Quadruple Modular Redundant
2.12.6.4 Anti surge controller With Performance controller
Conventional Single Loop controller
DCS
X Special controller, CCC or equal
2.12.6.5 Machine monitoring
X Bentley Nevada
Series 3300 or equal
X Series 3500
Location of monitors Control room
X Local panel
Note : Vibration & Temperature monitoring signals of compressors / other package units shall be hardwired as well as serial interfaced with main DCS.
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2.12.6.6 Type of local panel
X Weather proof as applicable
X Flame proof as applicable
2.13 CONTROL ROOM GENERAL REQUIREMENTS
2.13.1 UPS X
Required Not required
2.13.2 Emergency Lighting X
Required Not required
2.13.3 False Flooring Anti Static X
Required Not required
2.13.4 False Ceiling Anti Static X
Required Not required
2.13.5 Fire Alarm / Fighting System X
Required Not required
2.13.6 Room Air Conditioning X
Required Not required
2.13.7 A/C with pressurization X
Required Not required
2.13.8 Air Lock X
Required Not required
2.13.9 Emergency Exit X
Required Not required
2.13.10 Cable entry From top X
From bottom
2.13.11 Space for Future Expansion X
Required Not Available
2.13.12 Protection from Radio X
Required Not Required Frequency and Electromagnetic Interference
2.13.13 False Flooring Loading Data X
1000 Kg/M2 static load (minimum)
X
500 Kg moving load
2.13.14 Type of Cable entries X
MCT blocks Pipe sleeves
2.13.15 Room Temperature Indicator X
Required Not Required ( Digital )
2.13.16 Chemical Filters X
Required Not Required
2.13.17 Digital Hygrometers X
Required Not Required
2.13.18 Corrosive Gas Monitors X
Required Not Required
3.0 INSTRUMENT SPECIFICATION
3.1 FIELD INSTRUMENTS
3.1.1 General Requirements for field transmitters
For Open & Close Loops X
FF Type Conventional
For Anti Surge loops D Smart
X Conventional
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For Shutdown/Interlock loops X
Smart Conventional
Signal for Smart Transmitters X
4-20mA with superimposed Digital data (Universal HART)
Transmitter Rangeability X
100: 1
However, if accuracy gets affected due to high rangeability, lower rangeability may be acceptable.
Transmitter Body Material X
SS316
Transmitter Enclosure Material X
Epoxy coated Die-cast Al
Note: However, for foundation field bus control system, transmitters shall be selected suitably.
3.1.2 Flow
3.1.2.1 Orifice assemblies (General Service, For line sizes ≥ 2” )
- Calculation code X
ISO5167
- Plate Type X
Square Edge X
Other types as required to suit
application
- Drain, gas hole X
Required Not required
- Plate Material X
SS 316 as minimum grade
- Tap type X
Flange taps (for line sizes <<<<14” )
X
D and D/2 Taps (for line size ≥14” )
X
Other types as required to suit application
- Orifice flanges
Material X
According to piping specification
Rating X
Min. 300# rating.
Jack bolts X
Required Not Required
Tap valves X
Required As per Piping specification
3.1.2.2 Integral orifice plate transmitters to be used for line size ≤1 ½
3.1.2.3 Variable area flow meters (Rotameters) Used for Line size ≤1 ½
- Type X
Metal tapered tube
- Used for X
Local indicator
- Material and rating X
According to piping specification
- Construction X
Weatherproof
3.1.2.4 Coriolis type Mass flow meters
- Application X
For highly viscous and fouling services
X
For Custody and Product Metering
- Accuracy X
Within ± 0.1 % of reading
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3.1.2.5 Others types of flow meters
- Electro-magnetic flow meter X
For Sea Water Cooling Line & Chemical service
- Turbine type flow meter High Rangeability Applications (Not required)
- Vortex meters X
Steam flow measurement
- Thermal flow meters X
Air flow to furnace, if required for combustion control
- Ultrasonic Flow meter X
Applications such as Flare flow Measurements 3.1.3 Level 3.1.3.1 Level Instrument (Radar- Non-Contact Type)
all applications except foamy services and Low refractive index media service. For those services, displacement type level instruments shall be considered. - Accuracy: +/- 3 mm 3.1.3.3 Displacer type level instruments
- Type X
Torque tube / LVDT
- Used for X
Transmitter
- Mounted X
Externally Internally - Material as a minimum grade
Chamber X
Carbon steel
Float X
SS 316 - Accuracy: +/- 0.5% Note: - For interface level measurement displacer type level instruments shall be used. 3.1.3.4 Magnetic coupled Level gauges (preferred over gauge glasses)
- Type X
Integrated Magnetic Coupled
X
Bicolor indicator 3.1.3.5 Level gauges (gauge glasses) (note: to be considered only where magnetic level
gauges are not suitable in services such as high temperature etc)
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- Type D
Reflex D Transparent
- Check valve X
Required Not required
- Stand pipe for multiple level gauge installation X
Required
3.1.4 Pressure
3.1.4.1 Pressure and differential pressure transmitters
X
Capacitance / Silicon Resonant sensor
D
Any other type to suit application
- Accuracy X
Within ± 0.075% Full Scale - Material as minimum grade
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7.1.1 Instrument Installation M
Close coupled (with approach to instrument)
D Remote– conventional impulse tubing
(Where instruments are not accessible or for very high temperature service)
7.1.2 Instrument Impulse Lines X
Piping for close coupled types
D
Tubing for utility services or for very high temperature service
X Piping as impulse lines for Hydrocarbon &
high-pressure services.
7.1.3 Material of Tubing and fittings X
SS 316 stainless steel (minimum) 7.1.4 Instrument valve manifolds for
- Pressure Gauges Integral X
Fabricated
- Flow Transmitters X
Integral Fabricated (3-way manifold)
- Others (DPT) X
Integral Fabricated 7.1.5 Impulse Line valves (After first isolation valve provided by piping)
- Isolation Valves X
Gate Ball
- Vent /Drain valves X
Gate Globe
7.1.6 Valves Material M
SS 316 D
As per as minimum Piping
material spec
7.1.7 Impulse tube size X
½” OD 7.2 INSTRUMENT AIR SUPPLY PIPING 7.2.1 Air supply method for local instruments
X
Through SS-316 Air header, SS-316 pipe, SS-316 air manifold & SS tube 7.2.2 Material
- Piping material X
SS-316 for sizes 3” & below
X
GI for sizes above 3”
- Valve Type & material X
Ball valve, SS 316
7.2.3 Air tubing size X
6mm X
12mm (Based on requirement)
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7.2.4 Make of SS-316 Tubes/Fittings SS-316 Tubes – Sandvik / Parker make SS-316 Tube fittings – Swagelok / Parkar make 7.3 INSTRUMENT CABLING (In general over head cable routing to be followed except where unavoidable such as Road crossing etc) 7.3.1 Cable Routing
- Main cable way X
Cable duct X
Ladder tray
M
Built up trench Directly buried
- Branch cable way X
Branch Tray Perforated (50 mm, 100 mm, 150mm, 300mm size)
- Tray Material X
FRP GI
- Cable Duct Material X
FRP
- Fireproofing of Trays/Ducts X
Required Not required
- Fiber optic cables routing X
HDPE close conduits 7.3.2 Cables 7.3.2.1 Type
- For DC mA signals X
Single pair for individual run
X
Multi-pair for main runs (Use 6 pair, 12 pair)
- For RTD cables X
Single Triad for individual run
X
Multi-triad for main runs (Use 6 Triad, 8 triad)
- For T/C (or compensating X
Single pair X
Multi pair Cables)
- For Power Supply (2.5 mm2)
X 2 or 3 core for individual run
D
(12, 24 core) For Multi-core cables
-For Control Cable X
2 core for individual run
(solenoids) (1.5 mm2)
X 12, 24 core for multi core cable
7.3.2.2 Cable specification All cables shall be of low toxic, low halogen FRLS type (both Inner and Outer Sheath)
with water and chemical resistivity. IS cables shall be Blue & Non-IS cables shall be black with blue band (4 bands at 90° apart)
DC mA signal and mV signal
- Rated Voltage X
1100 V
- Core size X
1.5 mm² for single pair / multi pair
- Core Material X
Copper
- Core Insulation Material X
XLPE conforming to BS-5308 / IS-7098.
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- Insulation thickness X
Conductor Insulation: 0.6 mm (Min.)
- Sheath Material X
Fire retardant, Low smoke, Low Halogen, Low toxic, PVC.
- Individual screen X
Required for single pair
- Individual and overall X
Required screen for multi pair
- Armouring X
Required with round GI wires AC Power Supply and On-off Switch Signals
- Rated Voltage X
1100V
- Core size X
2.5 mm² min. for Power supply
X
1.5 mm² for Solenoid Valves.
- Core Material X
Copper
- Core Insulation Material X
XLPE conforming to BS-5308 / IS-7098.
- Sheath Material X
Fire retardant, low smoke, low Halogen, low toxic, PVC.
- Armouring X
Required with round GI wires Compensating cable / Extension wire for Thermocouple
- Applicable code X
ISA MC96.1
- Core size X
1.5mm² or 16AWG for Single pair.
1.0 mm² or 18 AWG for multi pair. ( For length up to 300m )
1.5 mm² or 16 AWG for multi pair. ( For length > 300m )
- Core Insulation Material X
XLPE conforming to BS-5308 / IS-7098.
- Sheath Material X
Fire retardant, low smoke, low Halogen, low toxic, PVC.
- Individual screen X
Required for single pair
- Individual and over- X
Required all screen for multi-pair
- Armouring X
Required with round GI wires Not required Note : No Multipair Compensating cable is envisaged. Fiber Optic cable
- Outer Sheath X
Orange
- Armouring X
Required Not required
Jacobs
HPCL-MUMBAI Part-XXX
ENGINEERING DESIGN BASIS INSTRUMENTATION Rev.1
44LK-5100 Doc. no. 44-LK-5100-00/J.02/0001/A4 Page 27 of 28
7.4 CABLE GLANDS X
Double compression
X
Flameproof
X
SS 316 7.5 JUNCTION BOX - Hazardous areas
X
Flame proof Ex ‘d’ & IP 65 (Even for intrinsic safe signal JB)
- Non-hazardous areas X
Weather proof IP 65
- JB construction X
Cast Aluminium Alloy LM-6 min. 5mm thk.
With threaded cover 7.6 GROUNDING
7.6.1 Control room mounted panels X
Separate dedicated body earth ( Includes panel earthing pit mounted bulk power supply earth)
7.6.2 Field instrumentation (Circuit X
Separate dedicated earthing pit ground, shields, drain wires etc. )
7.6.3 UPS body earth X
Electrical earth grid
7.6.4 Operator consoles, engineer’s X
Separate dedicated earthing pit consoles, etc.
7.6.5 Junction Boxes X
PVC insulated GI wire
7.7 HEAT TRACE X
Required with steam trap Not required
7.7.1 Method Electric heat trace D
Steam trace
7.7.2 Material X
Copper tube 7.8 CANOPIES
7.8.1 - Material X
FRP, 4mm thick
- Required for X
Field transmitters and Field Local panels
Jacobs
HPCL-MUMBAI Part-XXX
ENGINEERING DESIGN BASIS INSTRUMENTATION Rev.1
44LK-5100 Doc. no. 44-LK-5100-00/J.02/0001/A4 Page 28 of 28
8.0 SPARE PHILOSOPHY
8.1 Spare instrument as X
10% or minimum one of each (range, type Engineering Spares and material of construction) (Except for
Control valves, Pressure relief valves. Displacer type instruments, Level Gauges, Analyzers and Special Instruments)
8.2 Spare Parts
X For two years operation
X For Startup and Commissioning
X Consumable spares for analyzer’s one year
operation
8.3 Mandatory Spares X
Required
8.4 Control System Spare Philosophy X
Refer relevant Specification.
8.5 Unit Spares for Transmitters X
10%
8.6 Control valve accessories per type/model X
10% (Including SMART Positioner)
Refer to mandatory spare list for more details on spare philosophy.
Test Certificates shall be provided in soft non-proprietary formats suitable for implementing into Plant Database Management System.
General Note: Job specification will be prepared based on Design basis, Basic Engineering Package (BEP) and actual site conditions. Any modification or additions required in BEP and Design basis shall be mentioned in Job Specification.
