GYTZA Flame-Retardant fiber Optical Cable | Fire-Rated Outdoor Telecom Cable | G.652D/G.655 | Single mode | Direct Burial Cable

Packaging Requirements:

• 1：All cables shall be wound on treated wooden spools that are not returnable
• 2：Cable ends must be firmly secured to the spool and protected with waterproof shrink caps

• 3：Each spool must include:

• A protective outer layer of plastic wrapping

• Reinforcing wooden slats to ensure stability

• At least 1 meter of free cable end reserved for testing

• A standard spool length of 3000mm (with a permissible tolerance of ±2%)

Cable Identification:

The outer jacket must display:

• 1、Unique sequential numbering every 1m (±1% variance permitted)

• 2、 Additional repeating markings at 1m intervals showing:

• Product code and fiber count

• Manufacturer identification

• Production date (month/year)

• Total cable length

Standard Packaging Dimensions:

Technical Reference:

• 1、 Standard cable diameter: 10.0mm
• 2、Maximum span distance: 100m
• 3、Contact sales team for complete technical specifications

Spool Marking Standards:

Permanent markings (minimum 25-30mm height) must appear on both sides of each spool:

1. 1、 Company name and trademark
2. 2、Contained cable length
3. 3、Cable specifications (type/fiber count)
4. 4、Winding orientation
5. 5、Weight measurements (gross/net)

Note: All wooden packaging materials must undergo proper fumigation treatment prior to use.

1. What is the main advantage of GYTZA compared to GYTS or GYTA cables?

The key feature of GYTZA is its flame-retardant outer sheath, making it ideal for environments where fire resistance is required—such as industrial parks, tunnels, metro systems, or building-to-building outdoor links. While GYTS/GYTA focus on mechanical protection, GYTZA adds fire safety compliance.

2. Is this cable suitable for underground or duct installation?

Yes. GYTZA is designed for outdoor duct, trench, or conduit-based installations. Its stranded loose tube and water-blocking structure protect the fibers from moisture and mechanical stress.

3. What fiber specifications are available?

This cable supports G.652D (standard SMF) and G.655 (non-zero dispersion-shifted fiber) in configurations from 2 to 144 cores, allowing flexibility for metro, access, and backbone deployments.

4. Does the flame-retardant feature affect durability or flexibility?

No. The flame-retardant sheath maintains high resistance to UV, mechanical stress, and temperature, while complying with IEC 60332 or equivalent fire safety standards. It ensures long service life even under outdoor exposure.

5. What industries or projects typically use GYTZA cables?

GYTZA is commonly used in:

• Industrial or petrochemical zones

• Power plants and substations

• Metro and transportation tunnels

• Telecom backbone networks requiring fire-rated cables