ZTT is a leading and global manufacturer of cable systems, which provides package solutions for telecommunication and power
applications around the world. With its rich heritage of highly advanced R&D results, ZTT owns the cutting-edge technology within the industry. ZTT was established in 1992 and became a listed company in 2002. Up to now, ZTT has developed to be a Group Company with 22 subsidiaries in China. Our products are widely used in telecommunication industry, power transmission industry, mining cable industry, marine and submarine cable industry, railway industry, cable manufacturing and so on. ZTT has always committed to be market-oriented, meeting various demands of our customers and providing economical & reliable solutions. With innovative product design, ZTT can also guarantee the high-end engineering capabilities and life cycle maintenance services.
Submarine Cable
Add 6 No Zhongtian Road Nantong Economic Technological and Development Zone Nantong Jiangsu Province China Tel 513 86 83599671 83599774 83599722 C ax 513 86 F 226009 P Website Http www.zttcable.com E mail international@zttcable.co mon.wu@zttcable.com m s i
Due to technology advancement, product is constantly enhanced, kindly contact or write to us for latest product information
www.zttcable.com
Product Range
Fiber optic cables Control cables Instrument cables Electric Submersible Pump cable (ESP)
Submarine optic fiber cables Submarine power cables Hybrid cable Related accessories
About Us
ZTT penetrated the optical fiber cable industry in the year 1992 and grew to a public company in 2002. With constant growth in global market share, ZTT is now the largest cable manufacturer in China for power and telecommunication. Zhongtian Technology Submarine Cable Co., Ltd (ZTTSC) was established in 1999, a 100% arm of Zhongtian Technology Co., Ltd. (ZTT) ZTT's leadership is clearly marked through its design development, manufacturing, marketing, and distribution program for its "King of Cable" family; submarine optic fiber cable, submarine power cable, submarine composite cable and other hybrid submarine cable for the energy, industrial and communication for the energy and telecommunication markets within China and globally. ZTT places its top product quality stamp through State-of-the-Art technology, certification and acceptance. According to International Standards and product trends, its R&D department pushes on constantly in search of excellence in oceanic
Beach joint
FO terminal
Submarine FO joint
FO branch joint
Service
Hang-off MV terminal HV
Spliter box
MV accessory HV
Protection tube
Submarine power joint
J Tube seal
Refinery
Bend restrictor
Telecom station
Telecom station Power station
Power station
Power Plant
Power cable
Optical cable
ZTT has a team of highly trained product specialist for offshore jobs. Performing feasibility research, cable laying supervision, cable splicing, establishing terminal to its final project commissioning to complete the entire submarine cable system.
Application
Offshore windfarms Tidal & wave energy farms Offshore oil and gas industry Islands connection Lake or river crossings
Submarine Optic Fiber Cable
Submarine optic fiber cable is laid for data transmission between states,with the performance of huge transmission capacity, long distance and compatibility to sever ambience. ZTT develop its own technic for manufacturing submarine optic fiber cable and has proprietary wharf and scored many first in invention. The first to receive National Certification for deep sea SOFC. The first to be certified by UJ consortium in China. The largest manufacturing factory of submarine optic fiber cable in China.
Characteristic
High strength fiber ensure stable signal transmission and effective operation life. Special water blocking jelly prevent the ingress of water or hydrogen gas. On-line fiber excess control- exact fiber excess in finished cable Stainless steel tube avoid external damages to optic fiber.
Cable protection Applicable standard
ZTT's SOFC are designed, manufactured and tested according to the latest edition of the following codes and standards: National Standard GB/ T18480-2001 National Military Standard GJB4489-2002 ITU Recommendation for optical fiber submarine cable systems, ITU-T G971~978 The optical fiber submarine cable should provide protection against the environmental hazards at its depth of utilization: protection against marine life, fishbite and abrasion, and armouring against aggression and ship activities. Different types of protected cable are defined in [G.972], in particular: The lightweight cable (LW cable); Cable suitable for laying, recovery and operation, where no special protection is required. The lightweight protected cable (LWP cable). Cable suitable for laying, recovery and operation, where special protection is required. The single armoured cable (SA cable). Cable suitable for laying, burial, recovery and operation, and suitably protected for specific area in shallow water The double armoured cable (DA cable). Cable suitable for laying, burial, recovery and operation, and suitably protected for specific area in shallow water The rock armoured cable (RA cable). Cable suitable for laying, recovery and operation, and suitably protected for specific area in shallow water
Fiber unit design
Drawing of Fiber unit
Fiber
Water-blocking jelly
Stainless steel tube
Typical structure of SOFC S17-for Repeater System
Single armor
Model : SOFC-S17-SA
Stainless steel tube (with fibers)
Light weight
Model : SOFC-S17-LW
Armouring wire Metallic seal (copper tube) PE inner sheath Armouring wire Stainless steel tube (with fibers) Bitumen Armouring wire Outer covering
Double armor
Copper conductor
Model: SOFC-S17-DA
Stainless steel tube (with fibers)
Outer sheath Armouring wire Metallic seal (copper tube)
Light weight protection
Model : SOFC-S17-LWP
Stainless steel tube (with fibers) Armouring wire
PE inner sheath Armouring wire Bitumen Outer covering
Copper tube
Technical parameter for SOFC (S17 Repeater system)
Insulation
Steel tape
SOFC-S17-LW
80 80 265 540
55 55 172 350
32 32 105 220
20 20 80 135
Outer sheath
SOFC-S17-LWP SOFC-S17-SA SOFC-S17-DA
Double armor 1
Double armor 2
Model : SOFC-Q10-DA2
Stainless steel tube
Typical structure of SOFC (Q10-for Unrepeater System)
Light weight
Model : SOFC-Q10-LW
Model : SOFC-Q10-DA1
Stainless steel tube
Inner sheathW Cu
Light weight protection
Model : SOFC-Q10-LWP
Inner sheathW Cu 1st armor layer 2nd armor layer
Armor bedding 1st armor layer 2nd armor layer Bitumen Out PP yarn serving
Stainless steel tube
Stainless steel tube
Bitumen Out PP yarn serving
Inner sheathW Cu Armor layer Bitumen binder tape Innerr sheathW Cu Armor tape Inner sheathW Cu Armor bedding 1st armor layer 2nd armor layer Bitumen
Inner sheathW Cu Armor layer Bitumen binder tape Outer PE serving
Rock armor
Model : SOFC-Q10-RA
Stainless steel tube
HDPE out serving
Single armor 1
Model : SOFC-Q10-SA1
Single armor 2
Model : SOFC-Q10-SA2
Out PP yarn serving
Technical parameter for SOFC ( Q10 Unrepeater system)
Stainless steel tube
Stainless steel tube
SOFC-Q10-LW SOFC-Q10-LWP 80 80 200 280 420 650 400 60 60 160 200 300 400 200 40 40 110 150 210 280 120 25 25 70 120 150 200 100 0.50 0.70 0.65 0.85 0.80 1.00 1.00 -20~+45 -20~+45 -20~+45 -20~+45 -20~+45 -20~+45 -20~+45 -30~+60 -30~+60 -30~+60 -30~+60 -30~+60 -30~+60 -30~+60
Inner sheathW Cu Armor bedding Armor layer Bitumen Out PP yarn serving
Inner sheathW Cu Armor bedding Armor layer Bitumen Out PP yarn serving
SOFC-Q10-SA1 SOFC-Q10-SA2 SOFC-Q10-DA1 SOFC-Q10-DA2 SOFC-Q10-RA
Submarine Optic Fiber Composite Power Cable
Submarine power cable or submarine optic fiber composite power cable are widely used in offshore wind generation farm, tide generation farm,or offshore oil & gas platforms.ZTT owns complete production chain for producing submarine cable, together with own test center and has established itself as a professional solution provider for submarine cable system in the region.
Model: ZS-YJQF41 + OFC
3 cores (copper) XLPE insulation, Lead sheath, Steel wire armor, Yarns serving submarine cable
Applicable standard
Submarine cable (<35KV) meets the requirements of ZTT enterprise standard Q/320623AP 27-2006 rated voltage 1KV~35KV XLPE insulated submarine power cable. The rated voltage 110KV submarine cable complies with the enterprise standard Q/320691AAG 01-2008 rated voltage 110KV XLPE insulated submarine cable. Comparing with land power cable, except the mechanical performance, ZTT submarine cable has the same electrical performance, which complies with IEC or ICEA. Optical performance of submarine composite cable is same with that of submarine optic fiber cable.
HDPE Sheath Tape Inner bedding Steel wire armouring
Waterblocking copper conductor
Model and Description
Conductor screen XLPE insulation Insulation screen Semiconductor waterblocking tape Alloy lead sheath Anti-corrosive layer
Outer serving
Optical fiber cell Filler
1 0
1 1
Note: Below value is based on following condition:lead sheath, single circuit, conductor operating temp. = 90 , ground temp. =25 , ground thermal resistance = 1.0km/w, burying depth 1.5m, air temp. = 45
Rated voltage: 12/20kV (ZS-YJQF41, ZS-YJQF41+OFC) Rated voltage: 8.7/10kV, 8.7/15kV (ZS-YJQF41, ZS-YJQF41+OFC)
1 2
1 3
Rated voltage: 18/30kV (ZS-YJQF41, ZS-YJQF41+OFC)
Rated voltage: 48/66kV (ZS-YJQF41, ZS-YJQF41+OFC)
Rated voltage: 26/35kV (ZS-YJQF41, ZS-YJQF41+OFC)
1 4
1 5
Model: ZS-YJAF41 + OFC
3 cores (copper) XLPE insulation, Laminated aluminium plastic tape, Steel wire armor, Yarns serving submarine cable
Note: below value is based on following condition: copper tape screen, single circuit, conductor operating temp. =90 , ground temp. =25 , ground thermal resistance =1.0K.m/w, burying depth 1.5m, air temp. =45.
Rated voltage: 8.7/10kV, 8.7/15kV (ZS-YJAF41, ZS-YJAF41+OFC)
Copper tape thickness
HDPE sheach
Waterblocking copper conductor
Tape Inner bedding Steel wire armouring Outer serving
Conductor screen XLPE insulation Insulation screen Semiconductor waterblocking tape Copper tape screen LAP tape
Optical fiber cell Filler
1 6
1 7
Rated voltage: 12/20kV (ZS-YJAF41, ZS-YJAF41+OFC)
Copper tape thickness
Rated voltage: 26/35kV (ZS-YJAF41, ZS-YJAF41+OFC)
Copper tape thickness
Rated voltage: 18/30kV (ZS-YJAF41, ZS-YJAF41+OFC)
Copper tape thickness
1 8
1 9
Model: ZS-YJQ41 + OFC
Single core (copper) XLPE insulation, Lead sheath, Steel wire armor, Yarn serving submarine cable
Note: below value is based on following condition: copper tape screen, single circuit, conductor operating temp. =90 , ground temp. =25 , ground thermal resistance =1.0K.m/w, burying depth 1.5m, air temp. =45.
Rated voltage: 64/110kV (ZS-YJQ41, ZS-YJQ41+OFC)
Alloy lead sheath
Waterblocking copper conductor
Anti-corrosion layer Conductor screen PE sheath XLPE insulation Inner bedding Steel wire armouring Semiconductor waterblocking tape Outer serving Optical unit Insulation screen
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CABLE ACCESSORY
Cable accessory
The deployment of submarine cable is a highly professional piece of engineering work. Installation vessel outfitted with special equipment. Professional desktop design and supervision service at site is vital to the operation. ZTT not only produces submarine cable but also supply related accessory, including J-tube seal, cable clamp, pulling head and joint box etc.. Submarine joint box is necessary for submarine cable project. ZTT possess its own intellectual property for submarine joint box. The product series includes direct joint box, branch joint box, joint box for submarine composite cable, flexible joint, onshore joint box, etc..
Beach Joint box / model: GPJ-JA48
Use to connect SOFC to land FO cable after exit from the manhole. High mechanical strength, good sealing and strong anti-corrosion Stainless steel cover has a good performance of anti-corrosion Cone-shape locking of steel wire ensures good recovery of cable tensile strength
Joint box for shallow sea application / model: GJHQ
Suitable for cable connection and repair in shallow sea condition, less than 200m water depth. High mechanical strength, good sealing and strong anti-corrosion. Tin alloy cover has good performance of anticorrosion. Cone-shape locking of steel wire ensures good recovery of cable tensile strength.
Joint box for submarine composite cable / model: GDFH-JT
Use for cable connection and repair of submarine composite cable High mechanical strength, good sealing and strong anti-corrosion Stainless steel cover has a good performance of anti-corrosion Cone-shape locking of steel wire ensures good recovery of cable tensile strength Half structure of out cover
Joint box for deep sea application / model: GJSH
Suitable for cable connection and repair in deep sea condition, less than 8000m water depth. Guarantee the power circuit of deep sea SOFC, and the splicing between repeater and cable. Adopt overall injection and molding art for the splicing closure. Use special gimbal to adjust the bending radius. Good performance of water sealing and electrical insulation under 8000m water depth. Withstand the strength above 90% UTS of deep sea SOFC.
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Quality and Quality Assurance
Standard and Recommendations
Quality and quality assurance has always been and will be the key element of ZTT's objective. ZTT established its own high technical laboratory to perform the necessary product tests before shipping. Having certified ISO9001 and ISO14001, every cable product carries a quality stamp label and certificate.
Although submarine cables are usually produced according to specific project requirement, ZTT embraces international scientific consortium standards like IEC, ITU, CIGRE etc...
Health, Safety & Environment
HSE is ensured by a safety management system. All equipment meets National Standards and are subjected to a strict maintenance program and periodic calibration by qualified personnel or institutes. A constant reduction of raw material and energy as well as product improvement also forms part of ZTT environment policy.
Research and Development
ZTT's R&D engineering experts are grouped from the Pioneers of Engineers for Submarine Cable System in China. To date, they still collaborate closely with specialists from leading laboratories, research institutes, professors from famous universities. With constantly upgrading in State-of-the-Art equipment and technology, they created and received many First in invention prize award for related products in the industry.
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