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DESCRIPTION
PREPARED
CHECKED
DATE
SALINE WATER CONVERSION CORPORATION
KINGDOM OF SAUDI ARABIA
SWCC WATER TRANSMISSION SYSTEMS
SAUDI CONSOLIDATED ENGINEERING COMPANY
KHATIB & ALAMI
LOCATION:
TITLE:
SPECIFICATION S09
COMMUNICATION SYSTEM
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LIST OF CONTENTS
1
SCOPE ...........................................................................................................................................5
2
CODES AND STANDARDS ..........................................................................................................5
3
ENVIRONMENTAL CONDITIONS ................................................................................................5
4
GENERAL SYSTEM DESCRIPTION ............................................................................................5
4.1
Objectives .....................................................................................................................................5
4.2
Overall Network Topology ..........................................................................................................6
4.3
Network components ..................................................................................................................6
4.4
Overall transmission system characteristics ...........................................................................6
4.5
Licenses........................................................................................................................................6
4.6
Maintainability ..............................................................................................................................7
4.7
Expandability................................................................................................................................7
4.8
Lifetime .........................................................................................................................................7
4.9
Redundancy .................................................................................................................................7
4.10
Equipment Cabinets ....................................................................................................................7
5
TRANSMISSION SYSTEM ............................................................................................................8
5.1
General ..........................................................................................................................................8
5.2
Multiplex System .........................................................................................................................8
5.3
Industrial Ethernet Switches ................................................................................................... 11
6
ROUTERS ................................................................................................................................... 12
7
STANDARD SWITCHES ............................................................................................................ 13
8
VIDEO SURVEILLANCE SYSTEM ............................................................................................ 13
8.1
General ....................................................................................................................................... 13
8.2
Central Video Monitoring ......................................................................................................... 13
8.3
Local Video Monitoring ............................................................................................................ 14
8.4
Outdoor Equipment - Camera.................................................................................................. 14
9
TELEPHONE SYSTEM .............................................................................................................. 14
9.1
General ....................................................................................................................................... 14
9.2
Expandability............................................................................................................................. 15
9.3
Topology .................................................................................................................................... 15
9.4
Functions ................................................................................................................................... 15
10
NETWORK MANAGEMENT ...................................................................................................... 16
11
CYBER SECURITY .................................................................................................................... 16
12
TEST AND COMMISSIONING ................................................................................................... 16
12.1
General ....................................................................................................................................... 16
12.2
Factory Acceptance Test ......................................................................................................... 16
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12.3
Pre- Commissioning ................................................................................................................. 16
12.4
Commissioning ......................................................................................................................... 16
12.5
Site Acceptance Test ................................................................................................................ 16
13
DOCUMENTATION .................................................................................................................... 17
13.1
Design and Manufacturing Documents .................................................................................. 17
13.2
Commissioning Documents .................................................................................................... 17
13.3
As-Built Documentation ........................................................................................................... 18
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ABBREVIATION
ACL
Access Control List
DC
Direct Current
EOW
Engineering Order Wire
FAT
Factory Acceptance Test
FOC
Fibre Optic Cable
GPS
Global Positioning System
HTTP
Hypertext Transfer Protocol
IP
Internet Protocol
LAN
Local Area Network
LED
Light-Emitting Diode
LVS
Line Valve Station
MAC
Media Access Control
NMS
Network Management System
PABX
Private Automatic Branch Exchange
PoE
Power over Ethernet
PS
Pumping Station
PSTN
Public Switching Telephone System
RSTP
Rapid Spanning Tree Protocol
SAT
Site Acceptance Test
SFP
Small Form-factor Pluggable
SNMP
Simple Network Management Protocol
TDM
Time Domain Multiplexing
TP
Twisted Pair
UPS
Uninterruptible Power Supply
USB
Universal Serial Bus
VoIP
Voice over IP
VPN
Virtual Private Network
WAN
Wide Area Network
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SCOPE
This specification describes the general requirements for the design, manufacturing, delivery,
installation and testing of the communication system for the Water Transmission Systems. The
communication system shall be considered as a part of the control system.
2
CODES AND STANDARDS
The following standards, rules and regulations, all in the latest valid edition must be observed
specifically:
•
with the ITU-T recommendations of the G-Series, I-Series, M-Series, K-Series, Q- Series
•
with the IEEE “Local & Metropolitan Area Networks (LAN/MAN)”, 802s Series
•
with the IETF recommendations of the RFC series
•
with IEC standards, especially with IEC 62439, "Industrial communication networks: high
availability automation networks"
Further standards, rules and regulations used by the communication system manufacturer for
design, construction and testing are allowed, but must be declared.
3
ENVIRONMENTAL CONDITIONS
The equipment will be installed inside buildings, container or inside an underground shaft.
The environmental data are summarised in the specification S01 “Design and Construction of
I&C System”.
All components of the communication system shall properly work on a continuous basis under
the environmental conditions that are defined in the above mentioned specification.
In case communication system equipment is installed within cabinets of the central control
system the environmental conditions as per S05 “Central Control Hardware and Standard
Software” shall prevail.
4
GENERAL SYSTEM DESCRIPTION
4.1
Objectives
The system shall provide the following communication channels for data, video, office and voice
transmission:
a)
b)
Control system data
•
redundant internal data communication (control system traffic) between control center
and all other stations of the system
•
backup communication between dedicated stations via point-to-point connection over
public telecom networks (e.g. PSTN or IP-VPN) or over existing “stand-by”
communication systems
Office WAN
•
c)
internal data communication (office applications) between Office LANs via multi-point
connections
Voice
•
Voice communication between all stations and to the PSTN
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Video surveillance
•
Video link between cameras at the pipeline stations and the central video system
•
Control link between the central video system and cameras at the pipeline stations
Overall Network Topology
The network topology shall be implemented according to project requirements as specified
in G02 “Description of Project and Works”.
4.3
Network components
The communication system consists of following main components:
• Transmission system
The transmission network shall be designed for long distance communication with
appropriate number of data ports at the relevant locations. Depending on the distance
between two components, the installation of repeater/amplifiers/ boosters could be
necessary.
• Router
Routers shall be used for separation and controlled interconnection of LANs (including
virtual LANs) as well as for implementation of backup links. Telephone system
For voice communication VoIP-PABXes at the control center and at the main stations shall
be installed. IP telephones shall be installed at all stations as extensions of the VoIPPABXes.
• Video Surveillance System
At the appropriate locations video cameras shall be installed. All video data shall be sent to
a “central video room”. From this room all cameras shall be controlled.
• Standard Switch
To build up office LAN’s at the main stations appropriate switches shall be installed.
Ports/interfaces and performance of each network component shall be dimensioned to project
specific requirements according to G02 “Description of Project and Works” under consideration
of spare capacity requirements.
4.4
Overall transmission system characteristics
The basic characteristics of the entire system are:
-
Bit Error Rate:
< 10-9
-
Total Transmission Capacity:
≥ 600 Mbps
(data transmission and overhead)
4.5
Packet based systems / services shall be designed in a way as to limit Packet Loss Rate
and Packet Delay Variation to avoid performance impacts on applications.
Licenses
For the complete hardware and software timely unlimited non-transferable licenses for all
components of the system are required.
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Maintainability
The complete system must with respect to the parameters be maintainable by the end- user
without programming knowledge.
All tools required for maintenance are part of the scope including the full documentation.
4.7
Expandability
The communication system shall be configured in order to facilitate changes and additions.
Eventual expansion may enlarge the currently proposed configuration. A certain expansion shall
be possible without changing the system structure and without losing any functionality. It must
be possible to expand the system without basic modifications of the system by reparameterisation by at least 200 %.
4.8
Lifetime
All equipment shall be designed for a minimum lifetime of 15 years.
Service and maintenance support including spare part delivery and software maintenance for all
hardware and software of the entire communication system has to be guaranteed by the
manufacturer for a period of at least 15 years after commissioning at reasonable cost.
4.9
Redundancy
4.9.1
Redundancy Architecture – Transmission System
The redundancy architecture shall base on following hardware/software configurations:
• flattened ring architecture (usage of different FOC, where applicable)
• dual equipment at all main stations which shall be configured such that in case of power loss
at any station all remaining stations are still interconnected via the main communication path
• redundant WAN (ring structure) and LAN interfaces at all line valve stations
• alternate paths by rerouting over the transmission system and the routers and/or the backup
link
• only standardized protection switching / reconfiguration protocols shall be used
4.9.2
Backup Link
The backup link over the PSTN, or any other stand-by communication link, shall be managed
automatically. Under normal conditions the traffic shall be carried over the optical fibre. However,
in case of a cable failure or another double failure the transmission system might be segmented
into two systems that can no longer communicate one with another. In this case the backup link
shall automatically reconnect the segmented systems in due time to avoid activation of station
safety sequences due to communication failure. Backup links shall be established for the
communication channels/services as specified in G02 “Description of Project and Works”.
4.10
Equipment Cabinets
All cabinets shall comply with the general requirements as specified in S01 “Design and
Construction of I&C Systems”.
Chassis
The components of the transmission system shall be accommodated in chassis that are
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mountable in 19” racks. The 19'' racks will be installed inside cabinets.
The system chassis shall at least provide a spare of 20% to accommodate additional units.
5
TRANSMISSION SYSTEM
5.1
General
For the data transmission between all pipeline stations, including control center, a Multiplex
System (e.g. SDH) or Industrial Ethernet Switches shall be used.
In G02 “Description of Project and Works” and subsequent documents all necessary functions
(switching, routing, etc.) are illustrated with separate components. The merging of different
functions within one communication equipment is allowed, if a sufficient separation of channels
(defined bandwidth for process data, voice, video surveillance and office application) and all
requirements for the redundancy are guaranteed.
At the date of the performance acceptance test shall the latest available firmware be installed at
the components forming the communication system.
5.2
Multiplex System
5.2.1
Central Unit
5.2.1.1
Multiplexer
The multiplexer shall provide add and/or drop and/or through-connect functionality.
In transmit-direction the multiplexer shall time-multiplex and code the signals from the tributary
ports and the system specific overhead on the aggregate level and pass them on to the
aggregate ports. In receive-direction the multiplexer shall de-multiplex these signals from the
aggregate level and pass them on to the tributary ports. The multiplexer shall provide switching
of connections between two aggregate ports and the tributary ports.
The multiplexer shall provide the following:
• Framing
• Synchronization
• Switching
• Buffering
• Network set-up and configuration
• Control and supervision of multiplex equipment
5.2.1.2
NMS Interface
The Network Management System (NMS) Interface shall provide connectivity and
communication to a local or remote (via the optical network) central network management
system.
NMS shall be programmed in such way it is showing system status for all network equipment up
to channel level (port level).
NMS shall support OPC/Modbus protocol to communication with SCADA system.
The local interface shall provide 100 BaseT with RJ45 connector.
5.2.1.3
Synchronisation
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It shall be possible to synchronise the central unit to the following signals:
• the internal clock
• an external reference signal, e.g. GPS
• an optical line signal
5.2.1.4
Engineering Order Wire (EOW) unit
The unit shall provide transmission capacity from the system specific overhead to the following
interface:
• standard 2-wire telephone interface (incl. handset)
The unit shall allow for selective calling over a party line configuration over the network.
5.2.1.5
Alpha-Numeric Display
An alpha-numeric display shall provide the relevant information regarding equipment operation
and setting.
5.2.1.6
Power Supply Units
The type of power supply unit used shall be adapted to the UPS available at a particular site. In
general all power supply cards shall be redundant.
5.2.2
Tributary Units
5.2.2.1
Ethernet Unit
The unit shall allow interfacing with data terminals or networks via IEEE 802.3
(10/100BaseT interface) interface.
The unit shall provide the following:
• Creation of fully transparent Ethernet networks between Ethernet units through the optical
network
• Establishment of multi-point connections
• Bandwidth selection on optical network between 1 and 150 Mbps
• 10/100 Mbps data rate to terminals or networks selectable via NMS or auto- sensitive
• Operation in half or full duplex Ethernet mode.
5.2.2.2
Other Interfaces
Independent from the fact that within the project other types of interfaces are normally not
required, but it shall be possible to expand the system with following tributaries:
a)
2/4-w-sub unit
The unit shall allow interfacing with standard 2 or 4 wire telephone sets. The unit shall
provide the following:
• Subscriber feeding
• Ringing generator
• DP and DTMF signalling
The unit shall be used in conjunction with 2/4-w-ex unit to interface to remote telephone
exchanges.
If the unit is used to establish hotline telephone connections, lifting the telephone handset
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on one site shall trigger the ringing generator on the other site of the hotline without dialling.
b)
2/4-w-ex unit
The unit shall allow interfacing with telephone exchanges via 2 or 4 wire interfaces.
The unit shall provide the following:
• Subscriber simulation
• DP and DTMF signalling
The unit shall be used in conjunction with 2/4-w-sub unit to interface to remote subscribers.
c)
S0-sub unit
The unit shall allow interfacing with 2B+D terminal equipment or telephone exchanges
via 4-wire interface.
The unit shall provide the following:
• Transparency for phantom power feeding
• Point-to-point connection (1 terminal or PABX)
• Bus connection (up to 8 terminals)
The unit shall be used in conjunction with S0-ex unit to interface to remote telephone
exchanges.
d)
S0-ex unit
The unit shall allow interfacing with 2B+D telephone exchanges via 4-wire interface.
The unit shall provide the following:
• Transparency for phantom power feeding
• Point-to-point connection (1 PABX)
The unit shall be used in conjunction with S0-sub unit to interface to remote telephone
exchanges and terminal equipment.
5.2.3
Aggregate Units
5.2.3.1
Optical Transceiver, Long-Haul
The unit shall provide an optical line interface suitable for long-haul applications.
In transmitting-direction the unit shall provide electro / optic signal conversion, coding and signal
conditioning for signal transmission over optical fibres. In receiving-direction the unit shall
provide optic / electro signal conversion, decoding and signal conditioning for subsequent
components.
The unit shall provide the following:
− Bridgeable optical attenuation
26 dB (plus ageing losses and system margin)
− Operating wavelength
1,310 or 1,550 nm
The interface shall be provided with FC/PC connectors.
5.2.3.2
Optical Transceiver Unit, Short-Haul
The unit shall provide an optical line interface suitable for short-haul applications.
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In transmitting-direction the unit shall provide electro / optic signal conversion, coding and signal
conditioning for signal transmission over optical fibres. In receiving-direction the unit shall
provide optic / electro signal conversion, decoding and signal conditioning for subsequent
components.
The unit shall provide the following:
− Bridgeable optical attenuation
13 dB (plus ageing losses and system margin)
− Operating wavelength
1,310 or 1,550 nm
The interface shall be provided with FC/PC connectors.
5.2.4
Synchronisation
The synchronisation of the entire system shall base on external redundant GPS signal.
Therefore, GPS receivers at both ends of the transmission system shall be installed.
5.3
Industrial Ethernet Switches
Industrial Ethernet Switches shall be of a compact design, suitable for top hat rail mounting in
the equipment cabinets. Different media shall be supported that shall include as a minimum:
− Download:
Ethernet ports, RJ45 sockets (≥ 100 Mbps)
− Upload:
Optical interfaces for fibre optic cable (single mode) ≥ 1 GBps
Fibre optic SFP ports shall be used and dimensioned with respect to signal attenuation. The
Industrial Ethernet Switches shall provide the following:
− Compliance:
IEEE 802.3 ISO/IEC 8802/3
− Technology:
store and forward
− Filtering Services / prioritization:
802.1 D/p
− Rate limitation
Ingress, Egress per port
− VLAN support:
IEEE 802.1Q, MAC Address / Port Based
− Reconfiguration Protection
Switching
IEEE 802.1D-2004 (RSTP), IEC 62439
− Port type
• Optical:
1000BASE FX Single Mode Fibre (SM)
• Electrical:
all stations: 10/100BASE T(X)
Pumping Stations and control center
10/100/1000BASE T(X)
1
− Max. transmission distance:
≥ 120 km, 9/125 SM cable1
− Operating voltage:
24 V DC
1 In special cases optical line interfaces for up to 200 km could be necessary
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indication of power status, link status, data, full
duplex, link failure (fibre disconnected)
− Management:
SNMP, HTTP(S), SYSLOG
− Synchronization
(S)NTP
− Design:
fan less
− Mechanical design:
stability against shock and vibration
− Mounting:
Rail mountable / 19” rack
− Min. operating temp. range:
0°C - 60°C
− Rel. humidity:
10% - 95%
−
LEDs for indication of power status, link status,
data, full duplex, link failure (fibre disconnected)
Diagnostics:
− EMC:
EN 55022, EN 50082-2
− MTBF:
>20 years
− Power supply
redundant
ROUTERS
The router equipment shall be configured in such a way that in case of any failure an automatic
switch over (rerouting) to an alternative link within the ring structure will be performed,
independent of the rerouting of the transmission system. The switch over shall not create any
data loss. As soon as the default connection is again working without disturbance the
communication path changeover will be immediately switched back. For each station data on
the actual connection status shall be provided for statistical purposes. It shall also be possible
to initiate the communication path change by a user command.
The Routers shall provide at least the following:
− Routing:
IP routing
− Memory:
Flash memory for software and parameter
downloading
− Compliance:
IEEE 802.3 ISO/IEC 8802/3
− Mechanical design:
Rail mountable / 19” rack
− Management:
SNMP, HTTP(S), SYSLOG
− Synchronization
(S)NTP
− EMC:
EN 55022, EN 50082-2
− Min. operating temp. range:
0°C - 55°C
− MTBF:
> 10 years
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redundant
STANDARD SWITCHES
Ethernet Switches shall be of 19” construction and will be installed within climate controlled
environment. The Ethernet Switches shall include as a minimum:
− Ports:
Ethernet, RJ45 sockets
− Compliance:
IEEE 802.3 ISO/IEC 8802/3
− Technology:
store and forward
− Filtering Services / prioritization:
802.1 D/p
− Rate limitation
Ingress, Egress per port
− VLAN support:
IEEE 802.1Q, MAC Address / Port Based
− STP protocol
IEEE 802.1D-2004 (RSTP)
− Port type
10/100/1000BASE T(X)
− Transmission distance:
TP cable: 100 m
− Diagnostics:
indication of power status, link status, data,
full duplex, link failure
− Management:
SNMP, HTTP(S), SYSLOG
− Synchronization
(S)NTP
− Mechanical design:
19 “ construction
− Diagnostics:
LEDs for indication of power status, link status,
data, full duplex, link failure
− EMC:
EN 55022, EN 50082-2
− Min. operating temp. range:
0°C - 55°C
− MTBF:
>10 years
8
VIDEO SURVEILLANCE SYSTEM
8.1
General
The data transmission between the central video monitoring, the local video monitoring and the
cameras shall base on the TCP/IP protocol (Ethernet).
In addition to the motion detection of each individual camera intrusion detection (door switch)
shall be included at the relevant doors.
8.2
Central Video Monitoring
Central video monitoring shall be installed at the control centre there the relevant equipment
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shall be installed to control all cameras and to monitor all areas. This shall at least include the
following components:
• Central Video Control Unit (e.g. video server) with:
• Motion Alarm
• Digital recording capacity for several time periods and simultaneously up to 8 channels (for
different picture quality and speed)
• Simple Software
• 1x46" TFT Displays for each pipeline with KVM extenders
• Periphery for easy handling of the cameras (e.g. joystick for zooming, moving)
• Proper time stamping of all recordings
8.3
Local Video Monitoring
Local video monitoring shall be installed at any pumping station and terminal station including
the same relevant system equipment as is specified for the central video system (see section
8.2).
8.4
Outdoor Equipment - Camera
The camera shall meet at least following requirements:
− Type:
Day/Night- IR colour CCD outdoor camera
(incl. video compression)
− Minimum Illumination:
as per station illumination conditions
− Motion Detection:
Built-in Intelligent Motion Detection or separate
detector
− Focus:
Auto/Manual
− Iris:
Auto/Manual
− Video Output
100Base-T / 10Base-T,
> 25 fps @ 640x480
− Housing
> IP 65
− Power Supply
24 V DC
9
TELEPHONE SYSTEM
9.1
General
The voice communication network shall be based on VoIP-PABX, analogue and VoIP phones
and an operator console.
The following traffic modes of the telephone exchange system shall be provided:
• Internal traffic within the private network
• External traffic to/from the public network - remote subscribers and third parties
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Expandability
VoIP-PABXes shall be capable of an increase in extensions, interfaces and line capacity of at
least 20% above the initial capacity required. In general each VoIP-PABX shall have a capacity
for at least 300 subscribers.
9.3
Topology
All VoIP-PABXes shall be connected over a dedicated ≥ 2 Mbps or ≥ 10/100 Mbps channel
within the communication system.
Each PABX shall be connected to the public switched telephone network (PSTN) directly or via
the existing telephone system. In case the PABX network is disconnected, the PABXes shall
use PSTN interconnections to reroute internal calls to other PABXes automatically PSTN
(response times via public network shall be taken into account).
9.4
Functions
9.4.1
Telephone exchange
The telephone exchange shall provide the following minimum functions:
• Automatic switching to/from the public network
• Automatic switching to/from local subscribers
• Personal mailbox for dedicated users
• Centralized answering machine
• Recording of all voice communication in and out of central control and pumping stations
Recorded data shall be maintained for at least 6 month and accessible across the network to
authorized personnel
• Point to point, point to multipoint and conference calls
• VoIP PABX shall be entirely server based. Seamless interconnection and integration to
existing network
• PABX shall have the facility of providing DECT cordless system
• VoIP-PABXes shall have redundant power supply and shall be powered by the station UPS.
Thus no PABX internal UPS with internal batteries shall be provided.
9.4.2
Telephone Sets
• VoIP telephone sets shall be used in the control room and office area within the electrical
building using PoE or power injectors
• VoIP communication shall be based on the SIP protocol
• Conventional analogue telephone sets shall be used in all other areas
• Wireless telephones shall be able to access and use all the features available to fixed-wire
telephones, in exactly the same way
• In pump house, LVS and other remote locations wall mounted industrial grade phones are
to be used, capable to handle related environment conditions
• Acoustic hoods or booths and audio visual ringers shall be used for noisy environment
and shall be installed such that acoustic protection is maximized).
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NETWORK MANAGEMENT
• NMS shall support OPC/Modbus protocol to communication with SCADA system.
• NMS shall be programmed in such way it is showing system status for all network equipment
up to channel level (port level).
11
CYBER SECURITY
Reference is made to specification S11 “Cyber Security System”.
12
TEST AND COMMISSIONING
12.1
General
All components of the communication system shall be carefully tested in the manufacturer's
workshop and before commissioning.
12.2
Factory Acceptance Test
As part of the control system, the communication system shall be subject of a detailed integrated
test together with the control system to show that the system is faultless, all required interface
connections are established and all components are working together (refer to specification S04
“Distributed Control System”).
The FAT also includes testing of all interfaces to other systems (e.g. existing communications
systems, PSTN).
12.3
Pre- Commissioning
During the pre-commissioning it shall be checked if the equipment is functioning in accordance
with the overall requirements and all detailed requirements of the specifications.
At least following sub-function shall be checked:
• Data communication with the control system
• Separation of Networks
• Voice communication between the PABXes and to/over the PSTN
• System parameter (bandwidth, bit error rate, response time, etc.)
12.4
Commissioning
The commissioning tests of the communication system shall show that the several subsystems,
the different software packages, the interfaces to third parties, etc. at different locations are
working together and meet the specified requirements.
12.5
Site Acceptance Test
After successful commissioning of the entire control system a Site Acceptance Test (SAT) shall
be carried out.
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Design and Manufacturing Documents
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Before installation the entire approved documentation shall be available covering the complete
main and auxiliary equipment.
The documentation shall assist in the installation, initial start-up and provide comprehensive
information concerning subsequent operation and maintenance. It also shall provide information
necessary for any future check of equipment performance or for expansion or redesign.
This documentation shall contain the purchase specification, equipment drawings, operating
data, instructions and other information:
• Drawing and document schedule
• Time schedule
• Inspection and test plan
• All necessary certifications
• Key design sketch
• Operating and maintenance manual
• General arrangements general
• Interface and connection schedule (incl. interfaces to third parties)
• Manufacture records book
• Test report of the FAT
• Functional specification
• Detailed design specification, including:
• Hardware
description and configuration,
assignments, and communication matrix
including
IP
address
lists,
VLAN
• Software description and configuration
• Calculation (loading, reliability, availability)
• Installation instructions
• Complete parts lists (incl. spare part list) and sectional drawing with parts identification
number
• Panel/Cabinet Layouts
13.2
Commissioning Documents
This documentation shall contain the documents of chapter 12.1 above with the appropriate
changes of the installation/pre-commissioning phase, the sets of all test records of the precommissioning (test certificates, performance curves, etc.) and photographs taken during
construction.
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As-Built Documentation
The as-built documentation shall represent the situation after SAT of all above mentioned
documents.
All documents shall be delivered also in native electronic format.
Configuration, setup details, etc. of each network device shall be provided in soft and hard copy
(2 each).
Backup of the firmware and configuration of each network device shall be handed over in
electronic format in addition.
Contractor shall insure the firmware is installed with the last version available at date of PAC.