GYTS53 Buried Optical Cable
The GYTS53 Buried Optical Cable is a double-sheath, steel-tape-armored outdoor optical fiber cable specifically engineered for direct burial and other demanding underground installations. Designed as an enhancement of the standard GYTS cable, the GYTS53 incorporates an additional armor layer and outer sheath to deliver superior mechanical protection in harsh environments. The cable complies with YD/T 901-2001 and IEC 60794-1 international standards.
Cable Construction
The GYTS53 Buried Optical Cable features a stranded loose tube configuration with the following layer-by-layer structure (from center to outside):
Optical fibers (250 μm) housed in high-modulus PBT loose tubes filled with water-resistant filling compound
Central strength member – phosphated steel wire (PE-coated variants available for high fiber counts)
Stranded core – loose tubes and fillers SZ-stranded around the central member; cable core filled with water-blocking compound
APL moisture barrier (Aluminum Polyethylene Laminate) applied around the cable core
PE inner sheath (nominal 1.0 mm thickness)
Corrugated steel tape armor (PSP) – longitudinally applied for enhanced crush and rodent resistance
PE outer sheath (nominal 2.0 mm thickness) for additional environmental protection
Fiber counts typically range from 2 to 288 cores, with G.652.D single-mode as the standard option and multimode variants available upon request.
Applications
The GYTS53 Buried Optical Cable is widely deployed in:
Long-distance telecommunication backbone and metropolitan area networks
Inter-office communication links
Direct buried routes in urban trunk roads, rural areas, and wetlands
Duct and aerial installations where extra mechanical margin is required
Scenarios demanding high moisture resistance and anti-rodent protection
Company Information
Packaging & Shipping
FAQ
Q1: What is the difference between GYTS and GYTS53?
A: GYTS53 adds an additional layer of steel tape armor and a second PE sheath on top of the standard GYTS construction. This double-armor, double-sheath design provides significantly enhanced mechanical protection, making GYTS53 specifically suited for direct burial and other harsh outdoor environments.
Q2: What are the minimum bending radius requirements for GYTS53?
A: For static (installed) conditions, the minimum bending radius is typically 12.5 to 15 times the cable outer diameter; for dynamic (during installation) conditions, it is 25 to 30 times the cable outer diameter. Exact values depend on the specific cable design and should be confirmed with the supplier.
Q3: Can GYTS53 cable be installed using methods other than direct burial?
A: Yes. While GYTS53 is primarily designed for direct burial, it is also suitable for duct installation and aerial deployment. Its robust construction ensures reliable performance across all these installation methods.
Q4: What fiber types are compatible with GYTS53 cable?
A: GYTS53 supports a wide range of fiber types, including single-mode G.652.D (standard), G.655, and multimode 50/125 μm and 62.5/125 μm fibers. Low-bend-loss G.657A1/A2 variants are also available upon request.
Q5: What quality standards does GYTS53 cable comply with?
A: GYTS53 cable complies with Chinese national standard YD/T 901-2001 (and YD/T 901-2009) as well as international standard IEC 60794-1. Manufacturers typically hold ISO9001, CE, and RoHS certifications.