Why choose double armor GYTA53?

Double armor adds an aluminum tape moisture barrier between the steel armor and outer jacket for enhanced rodent protection and moisture resistance in harsh underground environments.

Direct Buried Double Armor Double Jacket Fiber Optic Cable GYTA53 Manufacturer

Direct Buried Double Armor Double Jacket Fiber Optic Cable GYTA53

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Description

The Direct Buried Double Armor Double Jacket Fiber Optic Cable GYTA53 is specifically designed for direct burial, allowing it to be buried directly in the ground without the need for extra protective ducts or conduits. This feature simplifies the installation process and reduces infrastructure costs. The fibers, 250μm, are positioned in a loose tube made of a high modulus plastic. The tubes are filled with a water-resistant filling compound. A steel wire, sometimes sheathed with polyethylene (PE) for cable with high fiber count, locates in the center of core as a metallic strength member. Tubes (and fillers) are stranded around the strength member into a compact and circular cable core. The cable core is filled with the filling compound to protect it from water ingress, over which a thin PE inner sheath is applied. After the PSP is longitudinally applied over the inner sheath, the cable is completed with a PE outer sheath.

Structure

ZTO Direct buried double armor double jacket cable GYTA53

Characteristics

Good mechanical and temperature performance
High strength looes tube that is hydrolysis resistant
Special tube filling compound ensure a critical protection of fiber
Crush resistance and flexibility

The following measures are taken to ensure the cable watertight:

Steel wire used as the central strength member
Loose tube filling compound
100% cable core filling
PSP enhancing moisture-proof
Water-blocking material

Applications for Oil & Gas Pipeline Monitoring

The double armor double jacket structure of GYTA53 makes it a preferred cable for direct burial along long-distance oil, gas, and product pipelines. The aluminum–steel laminate armor resists crush from backfill and soil pressure, while the dual PE sheath provides long-term moisture and chemical resistance against groundwater and hydrocarbon-contaminated soil.

Long-haul pipeline fiber backbone: Buried alongside oil, gas, refined product, or slurry pipelines to provide telecommunications and supervisory links between pump stations, valve stations, and terminals.
Distributed fiber-optic sensing (DTS / DAS / DSS): Continuous temperature and acoustic monitoring for leak detection, third-party intrusion, and pipeline integrity, using a spare fiber in the GYTA53 as the sensing medium.
Station and valve-area interconnection: Direct-buried runs between RTU/PLC cabinets at well pads, metering stations, and block-valve sites where surface cabling is impractical.
SCADA and emergency backup link: Resilient secondary path for SCADA, cathodic-protection monitoring, and emergency communication when primary wireless or surface links are unavailable.

Technical Specifications for Pipeline Burial

Parameter	Value
Operating Temperature Range	−40 °C to +70 °C
Crush Resistance (long-term / short-term)	3000 N/10 cm / 5000 N/10 cm
Tensile Strength (long-term / short-term)	≥ 3000 N (per IEC 60794-1)
Minimum Bend Radius (dynamic / static)	25 × D / 12.5 × D
Water Blocking	Filled loose tube + 100% cable core filling + water-blocking material + PSP
Sheath Material	Inner PE + outer PE (anti-rodent / anti-chemical option)
Suitable Installation	Direct burial in pipeline right-of-way, 0.8–1.2 m typical depth
Standards	YD/T 1155-2001, IEC 60794-1

Note: GYTA53 can be supplied with extra spare fibers reserved for distributed sensing (DTS/DAS/DSS) without changing the mechanical envelope. Contact ZTO Cable for monitoring-specific fiber counts and armor options.

Standard

Standard YD/T 1155-2001 as well as IEC 60794-1.

For specific data sheet, please write to [email protected], whatsapp+86 15802524130 Or click here!

FAQ

Double armor GYTA53 adds an aluminum tape moisture barrier between the steel armor and outer jacket, providing enhanced rodent protection and superior moisture resistance for harsh underground environments.