|
US$1409.00 · In stock
Delivery: <= 8 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 51154-2015: Code for engineering design of optical fiber submarine cable systems
Status: Valid
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 51154-2015 | English | 1409 |
Add to Cart
|
8 days [Need to translate]
|
Code for engineering design of optical fiber submarine cable systems
| Valid |
GB/T 51154-2015
|
PDF similar to GB/T 51154-2015
Basic data | Standard ID | GB/T 51154-2015 (GB/T51154-2015) | | Description (Translated English) | Code for engineering design of optical fiber submarine cable systems | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | Q40 | | Classification of International Standard | 81.080 | | Word Count Estimation | 67,614 | | Date of Issue | 2015-12-03 | | Date of Implementation | 2016-08-01 | | Regulation (derived from) | Ministry of Housing and Urban?Rural Development Announcement No.987 | | Issuing agency(ies) | Ministry of Housing and Urban-Rural Development of the People's Republic of China; General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China | GB/T 51154-2015: Code for engineering design of optical fiber submarine cable systems---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
1 General
1.0.1 In order to unify and standardize the construction of submarine optical cable projects, so that submarine optical cable projects comply with relevant national policies, advanced technology, safe and reliable, economical and reasonable, energy-saving and environmentally friendly, this specification is formulated.
1.0.2 This specification is applicable to the engineering design of submarine optical cable lines and digital signal transmission systems of submarine optical cables and related auxiliary systems.
1.0.3 Submarine optical cable engineering design should be compared with multiple schemes, and efforts should be made to improve economic benefits and reduce project costs.
1.0.4 Submarine optical cable projects should be planned, jointly constructed, and resource shared to meet the requirements of building a resource-saving and environment-friendly society.
1.0.5 The equipment of submarine optical cable projects constructed in areas with seismic fortification intensity 7 and above in my country shall meet the seismic performance requirements of communication networks.
1.0.6 In addition to complying with these regulations, the engineering design of submarine optical cables shall also comply with the relevant current national standards.
2 Terms and symbols
2.1 Terminology
2.1.1 Submarine repeater
Submarine optical signal amplification equipment composed of one or several regenerators or optical amplifiers and other related devices.
2.1.2 Repeated submarine cable system with relay submarine cable system
Submarine optical cable system using submarine optical repeater in the submarine line.
2.1.3 Repeaterless submarine cable system
Submarine optical cable transmission system without submarine optical repeater in the submarine line.
2.1.4 beach manhole
The man well installed on the landing beach of the submarine optical cable is used to terminate the submarine optical cable and connect the land optical and cable.
2.1.5 submarine cable landing point cable landing point
The location of the joint point between the submarine optical cable and the land optical cable is generally located on the beach manhole.
2.1.6 submarine cable landing station cable landing station
Terminal station for submarine fiber optic cable systems. Submarine optical cable terminal equipment, monitoring equipment and remote power supply equipment can be installed in the submarine optical cable landing station.
2.1.7 sea wall
A dyke on the coast to keep out the sea.
2.1.8 Submarine cable segment
The collection of all submarine cable system components between two adjacent submarine cable terminal equipment connected on the same pair of optical fibers.
2.1.9 Anchorage area
A special area at sea where designated ships can drop anchor.
2.1.10 deep sea section
Submarine optical cables laid in sections with a water depth greater than 1000m.
2.1.11 shallow sea section
Submarine optical cables laid in water depths ranging from 20m to 1000m.
2.1.12 inshore section
The submarine optical cable laid in the section from the shore beach man's well to 20m.
2.1.13 landing section landing section
The submarine optical cable laid in the section from the beach man's well to the water depth of 5m.
2.1.14 remote power supply system power feeding system
A power supply system that provides power to submarine equipment using the loop formed by the conductor in the submarine optical cable and the earth.
2.1.15 remote optical pumped EDF amplifier
A remote optical amplification system consisting of the pump source in the terminal equipment and the erbium-doped optical fiber embedded in the optical cable line at a certain distance (usually 80km to 120km) from the terminal equipment.
2.1.16 cable route desktop study
According to the design of the topology structure of the submarine optical cable system, through the collection and analysis of existing geophysical data, marine environmental elements and marine development activities, one or more technically and economically feasible submarine optical cable routing schemes are proposed.
2.1.17 Ocean route survey route survey
Using geological sampling, geophysical surveying, on-site observation and other professional technical methods, conduct on-the-spot investigations on the routing scheme proposed by the routing pre-selection tabletop research, and determine the best routing scheme after comprehensive evaluation and comparison of the obtained data, and provide for the optical cable project. Design and construction provide scientific and technological basis.
2.1.18 static penetration test cone penetration test
The process of pressing the conical probe into the soil at a constant speed and measuring its penetration resistance (cone head resistance, side wall friction resistance), etc.
2.1.19 optical coherent reception optical coherent detection
In the receiving device, the local optical carrier and the same-frequency optical carrier signal are used for coherent mixing, and the phase information of the carrier signal is detected and received.
2.2 Symbols
English abbreviation English name Chinese name
ASE Amplified Spontaneous Emission Amplified spontaneous emission
BBER Background Block Error Ratio background error block ratio
BER Bit Error Ratio bit error rate
BJ Beach Joint Shore Beach Joint Box
BOL Begin Of Life
BU Branch Unit subsea branch unit
C-OTDR Coherent Optical Time-Domain Reflectometer Coherent Optical Time Domain Reflectometer
CTB Cable Terminating Box optical cable terminal box
DA cable Double Armored cable double armored cable
(D) BPSK (Differential) Binary Phase (differential) binary phase shift
Shift Keying Keying
DCC Data Communication Channel data communication channel
DCN Data Communication Network Data Communication Network
DGD Differential Group Delay Differential group delay
DPSK Differential Phase Shift Keying Differential Phase Shift Keying
(D)QPSK (Differential) Quadrature (differential) quadrature phase shift
Phase Shift Keying Keying
DSP Digital Signal Processing Digital Signal Processing
EOL End Of Life
FEC Forward Error Correction forward error correction
LME Line Monitoring Equipment Line Monitoring Equipment
LW cable Light Weight cable light weight cable
LWP cable Light Weight Protected cable
OADM Optical Add／Drop Multi-plexer
ODF Optical Distribution Frame Optical Distribution Frame
OSNR Optical Signal to Noise Ratio Optical Signal to Noise Ratio
OTDR Optical Time-Domain Reflectometers
OTN Optical Transport Network Optical Transport Network
OTUk Completely standardized fully standardized optical path
Optical Channel Transport Unit-k
PFE Power Feeding Equipment Remote power supply equipment
PM-(D)BPSK Polarization Multiplexing- polarization multiplexing (differential) two
(Differential) Binary Phase Shift Keying) Phase Shift Keying
PM0-(D)QPSK Polarization Multiplexing- Polarization multiplexing (differential) positive
(Differential) Quadrature Phase Shift Keying
PMD Polarization Mode Dispersion Polarization Mode Dispersion
QQ factor Q value
RA cable Rock Armored cable Rock armored cable
RZ Return to Zero return to zero code
SA cable Single Armored cable single armored cable
SDH Synchronous Digital Hierarchy synchronous digital system
SE Sea Earth Marine Grounding Device
SESR Severely Errored Second Ratio Severely Errored Second Ratio
SLTE Submarine Line Terminal Submarine Optical Cable Line Terminal
Equipment equipment
VOIP Voice over IP IP phone
WDM Wavelength Division Multiplexing
3 Submarine optical cable system composition and system standard
3.1 System composition and classification
3.1.1 The submarine optical cable system can be divided into a relay submarine optical cable system and a non-relay submarine optical cable system according to whether there is a submarine optical repeater.
3.1.2 Submarine optical cable system with relay should consist of submarine optical cable terminal equipment, remote power supply equipment, line monitoring equipment, network management equipment, submarine optical repeater, submarine branch unit, online power equalizer, submarine optical cable, submarine optical cable connector It is composed of equipment such as boxes, ocean grounding devices, and terrestrial optical cables.
3.1.3 The non-repeater submarine optical cable system should be composed of submarine optical cable terminal equipment, network management equipment, submarine branch unit, submarine optical cable, submarine optical cable splice box and terrestrial optical cable and other equipment.
3.1.4 The submarine optical cable system can be divided into SDH system and WDM system according to the type of terminal equipment.
3.2 System interface and working wavelength
3.2.1 The service interface types supported by the submarine optical cable digital signal transmission system shall comply with the provisions in Table 3.2.1.
Table 3.2.1 Types of service interfaces supported by submarine optical cable digital signal transmission system
3.2.2 The line optical path signal type and rate of the submarine optical cable digital signal transmission system should comply with the requirements in Table 3.2.2.
Table 3.2.2 Line optical path types of submarine optical cable digital signal transmission system
3.2.3 The submarine optical cable digital signal transmission system should work in the 1550nm band.
4 Design of Submarine Optical Cable Digital Signal Transmission System
4.1 Basic principles of system design
4.1.1 The design life of the system should reach 25 years.
4.1.2 The system design should comprehensively consider the design capacity and cost factors to realize the optimal design of the system; if the technical conditions permit, the non-relay system should be preferred.
4.2 Determination of scale capacity
4.2.1 The line transmission rate of the non-repeater submarine optical cable system should be determined according to the distance between landing stations, and the number of cores of optical fibers should be determined through technical and economic comparison in combination with medium and long-term capacity requirements.
4.2.2 The number of optical fiber cores of the relay submarine optical cable system should be determined in consideration of cost, medium and long-term capacity requirements, and remote power supply capacity.
4.2.3 The repeater system should adopt the industry's advanced terminal technology, and determine the design capacity in combination with the type of optical fiber and the distance between submarine optical repeaters, so as to minimize the cost of system unit design capacity; the configuration capacity of submarine optical cable terminal equipment can be Determined according to recent business volume needs.
4.3 Network topology
4.3.1 The submarine optical cable system should adopt two types of basic topological structures. point-to-point linear (Fig. 4.3.1-1) and branch (Fig. 4.3.1-2).
Figure 4.3.1-1 Point-to-point line topology
Figure 4.3.1-2 Branch topology
4.3.2 When choosing a topology structure, factors such as the geographical relationship between landing stations, business requirements, network security requirements, and economics should be considered comprehensively.
4.4 Selection of subsea equipment
4.4.1 Subsea equipment may include equipment such as submarine optical repeaters, subsea branch units and online power equalizers.
4.4.2 In addition to meeting the external dimension requirements of the existing submarine optical cable construction ship deployment equipment, the deepest seawater pressure requirements and the requirements of high dielectric strength, the submarine equipment should also meet the following requirements.
1 The optical repeater should have the function of remote power supply surge protection;
2 The important components of optical repeater and branch unit should have redundant configuration to meet the overall reliability index of the system;
3 The optical repeater should have its own status monitoring circuit or C-OTDR optical fiber monitoring circuit;
4 The submarine branch unit should be able to choose to have the function of fiber branching or add-drop multiplexing (OADM) according to the structure of the submarine optical cable system;
5 The subsea branch unit should be able to choose to have the remote power supply circuit switching function according to the structure of the submarine optical cable remote power supply system;
6 The subsea branch unit with remote power supply switching function shall have remote power supply surge protection function;
7 Online power equalizer According to different spectral power waveforms, the gain equalization filter of the corresponding waveform can be selected.
4.5 Selection of terminal equipment
4.5.1 The selection of submarine optical cable terminal equipment should meet the following basic requirements.
1 The terminal equipment should comply with the principles of advanced technology, safety and reliability, economical and practical, and easy maintenance;
2 Equipment suppliers should have the ability to upgrade equipment, upgrade network management system, technology research and development and after-sales service;
3.The terminal equipment should have flexible hardware configuration with fewer varieties, which is easy to expand and upgrade the system;
4 The terminal equipment should meet the technical requirements related to SDH or WDM systems in my country;
5.Terminal equipment should comply with the principles and requirements of energy conservation and emission reduction.
4.5.2 Rack-mounted equipment The height of the rack should be 2600mm, 2200mm or.2000mm, the thickness should be 300mm or 600mm, and the width should be 600mm. It is advisable to maintain the uniform height of the racks in the same computer room.
4.5.3 The overall mechanical structure of the terminal equipment should be easy to install, maintain, expand or adjust, and the hardware of the equipment should be modular in design, and should have mechanical strength and rigidity. The electromagnetic compatibility of the equipment should comply with the relevant provisions of the current national standard "Electromagnetic Compatibility Requirements and Measurement Methods for Telecommunications Network Equipment" GB 19286.
4.5.4 On the terminal equipment, an interface for testing the main optical channel and a data communication channel interface for uninterrupted service testing shall be provided.
4.5.5 On the terminal equipment with relay submarine optical cable system, a submarine optical cable line monitoring interface shall be provided.
4.5.6 On the terminal equipment of the non-repeater WDM submarine optical cable system, the optical power and optical signal-to-noise ratio data of each optical channel shall be able to be obtained, and the corresponding data shall be viewed in the network management system.
4.5.7 On the terminal equipment of the repeater WDM submarine optical cable system, the optical power and FEC error correction data of each optical channel shall be able to be obtained, and the corresponding data shall be viewed in the network management system.
4.5.8 The dispersion tolerance and polarization dispersion tolerance of coherent receiving WDM submarine optical cable terminal equipment should be greater than the cumulative dispersion and differential group delay of optical cable lines respectively.
4.5.9 The configured optical amplifier and Raman amplifier should have obvious safety signs. When the optical fiber is cut, the equipment fails or the optical connector is pulled out, the automatic power reduction process should be started, and the automatic/manual restart process should be available.
4.6 Selection of optical fiber
4.6.1 The selection of the optical fiber of the submarine optical cable should comprehensively consider factors such as the technical condition of the terminal equipment, the length and cost of the submarine optical cable system.
4.6.2 Submarine optical cables can choose to use the following types of optical fibers.
1 Non-dispersion-shifted single-mode fiber;
2 cut-off wavelength shifted single-mode fiber;
3 non-zero dispersion-shifted single-mode fiber;
4 Dispersion managed fiber.
4.7 Selection of auxiliary technologies related to submarine optical cable transmission
4.7.1 The dispersion compensation design of WDM submarine optical cable digital signal transmission system shall meet the following requirements.
1 The non-coherent reception non-repeater WDM submarine optical cable digital signal transmission system can pre-compensate the dispersion at the sending end of the submarine optical cable terminal equipment and compensate the dispersion after the receiving end; the dispersion compensation can adopt fixed dispersion compensation or (and) adaptive dispersion compensation, and can Accurate dispersion compensation of a single channel is realized by using adaptive dispersion compensation combined with fixed dispersion compensation.
2 Non-coherent reception and repeater WDM submarine optical cable digital signal transmission system can realize dispersion compensation by combining the online compensation of uniformly interleaved dispersion compensation optical amplifier section in the submarine optical cable line and the terminal equipment compensation mechanism mentioned in paragraph 1 of this article.
4.7.2 The design of WDM submarine optical cable digital signal transmission system using non-coherent reception should consider the influence factors of polarization mode dispersion (PMD), and the cost of differential group delay (DGD) should be within the allowable range of system performance budget.
4.7.3 The application of power equalization technology shall comply with the following regulations.
1 For the non-repeater WDM submarine optical cable digital signal transmission system, the submarine optical cable terminal equipment should have the optical power equalization function, which can automatically adjust the power of a single channel without manual participation;
2 For the WDM submarine optical cable digital signal transmission system with repeaters, the system power equalization can be realized by combining the online power equalization of the submarine optical cable line insertion power equalizer with the optical power equalization of the submarine optical cable terminal equipment.
4.7.4 Considering the cost of submarine equipment, the submarine optical cable digital signal transmission system should adopt the most advanced FEC, coding modulation and receiving technology.
4.7.5 According to the distance between landing stations and the design capacity, technologies such as pre-amplifier, post-amplifier, pre-remote pump, post-remote pump and Raman amplifier may be used in the non-repeater submarine optical cable digital signal transmission system.
4.8 System Reliability
4.8.1 Submarine equipment components are to be arranged redundantly.
4.8.2 During the service life of the system, the number of failures requiring maintenance ships to repair due to failures of optical cables and components themselves should not exceed 3 times.
4.9 System Maintenance Margin
4.9.1 The maintenance margin design of the submarine optical cable system during the service life should meet the following requirements.
1 The land optical cable section between the landing point and the landing station can be calculated as one maintenance per 4km, but not less than two times, and the loss of each joint for each maintenance can be calculated as 0.14dB;
2 The coastal section and the shallow sea section can be calculated as one maintenance every 15km, but not less than 5 times; the deep sea section can be calculated as one maintenance every 1000km; the loss added for each maintenance of the submarine optical cable should include the attenuation and connector of the inserted submarine optical cable Loss, the length of the inserted optical cable can be calculated as 2.5 times the depth of seawater, and the loss of the joint for each maintenance can be calculated as 0.4dB;
3 The maintenance loss margin of the submarine optical cable section of the unrepeated submarine optical cable system should not be greater than 5dB.
5 Submarine Optical Cable Line Design
5.1 Desktop Research on Submarine Optical Cable Line Routing Preselection
5.1.1 Submarine optical cable line engineering should carry out route pre-selection desktop research and prepare a route pre-selection desktop research report.
5.1.2 The desktop research on pre-selection of submarine optical cable routing should be based on the engineering design power of attorney, and should follow the principles of technical feasibility, economical rationality, marine environment safety, and ease of construction and maintenance to select submarine optical cable routing, and propose routing survey and submarine optical cable protection. and construction suggestions.
5.1.3 Submarine optical cable routing preselection should investigate and analyze the following information.
1 The natural environment data of the route area, especially the data of disaster geological factors;
2 information on marine planning and development activities in the route area;
3 Fault history and fault causes of submarine optical cables and pipelines built in the routing area.
5.1.4 Submarine optical cable line pre-selection routing should meet the following requirements.
1 The impact of various construction projects in the planning of marine functional areas should be fully considered.
2 It is advisable to avoid the distribution area of disaster geological factors.
3 It is advisable to avoid offshore oil and gas fields, placer mining areas, oil and gas pipelines, piers, anchorages, net fishing operation areas, nature reserves, military activity areas, and man-made waste.
4 It should cross perpendicular to the channel; it should avoid crossing with submarine optical cables, cables, and pipelines. When crossing is really necessary, the crossing angle should not be less than 60°, and the distance between the crossing point and the submarine repeater and branch unit should not be less than 3 times the water depth; When parallel to other submarine optical cables, the spacing should not be less than 3 times the water depth, and should not be less than 1000m.
5.1.5 For pre-selection of routes, the landing point should be surveyed, and the marine development activities near the landing point should be investigated. It should be in line with the marine functional zoning, close to the landing station, have less intersection with other marine planning and development activities, and be conducive to the landing of optical cables. Sections for construction and maintenance serve as landing points.
5.1.6 The route selection and determination of the land optical cable between the submarine optical cable landing point and the submarine optical cable landing station shall comply with the relevant requirements in the current national standard "Code for Design of Communication Line Engineering" GB 51158.
5.1.7 The preparation outline of the desktop research report for route preselection can be implemented in accordance with the relevant requirements in the current national standard "Code for Routing Survey of Submarine Cable Pipelines" GB/T 17502.
5.2 Submarine optical cable route survey
5.2.1 Before the route survey, the construction unit shall obtain the submarine optical cable route survey permit.
5.2.2 The route survey should ascertain the submarine engineering geological conditions, marine meteorological and hydrological environment, marine planning and development activities and other engineering environmental conditions in the submarine optical cable routing area, and determine the best submarine optical cable routing, submarine optical cable protection requirements and construction methods.
5.2.3 Route survey should include the following main contents.
1 water depth and seabed topography;
2 sea surface conditions and natural or man-made sea bottom obstructions;
3.Structural characteristics, spatial distribution and physical and mechanical properties of shallow seabed formations;
4 Geological and seismic factors of submarine hazards;
5 Ocean hydrometeorological dynamic environment;
6 Marine planning and development activities.
5.2.4 The scope of route survey should meet the following requirements.
1 The route survey should be carried out within a certain width of the corridor along both sides of the route centerline. The width of the survey corridor should be 500m in the nearshore section; 500m-1000m in the shallow sea section; 2 to 3 times the water depth in the deep sea section;
2 The survey at the subsea branch unit should be carried out within a certain range centered on it, and the survey range in the shallow sea section should be 1000m×1000m; the survey scope in the deep sea section should be a square area 3 times the water depth width;
3 The survey of the intersection point of the route and the established submarine optical cable should be within the range of 500m centered on the intersection point...
Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 51154-2015_English be delivered?Answer: Upon your order, we will start to translate GB/T 51154-2015_English as soon as possible, and keep you informed of the progress. The lead time is typically 5 ~ 8 working days. The lengthier the document the longer the lead time. Question 2: Can I share the purchased PDF of GB/T 51154-2015_English with my colleagues?Answer: Yes. The purchased PDF of GB/T 51154-2015_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet. Question 3: Does the price include tax/VAT?Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countriesQuestion 4: Do you accept my currency other than USD?Answer: Yes. If you need your currency to be printed on the invoice, please write an email to [email protected]. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.
|