OPGW Typical Designs of Stranded Stainless Steel Tube

Structure Design:

Applications:
1. Commonly used in newly built overhead power lines.
2. Can meet the requirements of big number of fibers and ultra high voltage(UHV) transmission lines.
3. Can provide protection against lightning by transmitting large fault short-circuit current. 

Main Features:

Stable structure, high reliability. Able to obtain the second optical fiber excess-length. Excellent resistance to distortion and side pressure. Can withstand high mechanical stress, and excellent lighting protection performance.

Standard:

Colors -12 Chromatography:

Optical Fibre Characteristics:

Cable Technical Parameter:

Typical design for Double Layer：

Typical design for Three Layer：

Remarks: Detail requirements need to be sent to us for cable design and price calculation. Below requirements are a must:
A, Power transmission line voltage level
B, fiber count
C, Cable structure drawing & diameter
D, Tensile strength
F, Short circuit capacity

Mechanical and Environmental Test Characteristics：

How to Ensure the Quality and Performance of Your Fiber Optic Cable?

We control the products quality from the raw material to the finish produts All the raw material should be tested to match the Rohs standard when they arrived at our manufacture.We control the quality during the producing process by advanced technology and equipments. We test the finished products according to the test standard. Approved by various professional optical and communication product institution , GL also conduct various in-house testing in its own Laboratory and Test Center. We also conduct test with special arrangement with the Chinese Government Ministry of Quality Supervision & Inspection Center of Optical Communication Products(QSICO).

GENERAL
There are different test series to assure the quality of OPGW:
- Routine test (in‒process testing according to internal quality plan)
- Factory acceptance test (FAT, witnessed by customer)
- Type test (only in case of a basic new design, repetition in exceptional cases)
OPGW tests shall be in accordance with applicable standards or agreements between purchaser and manufacturer.
As a general rule the tests will be performed according IEC 60794-4-10.However, if necessary tests can be done according to IEEE Std1138.

Type test
Type test may be waived by submitting makerʼs certificate of the similar product performed in an internationally acknowledged independent test organization or laboratory. If type test should be performed, it will be carried out according to an extra type test procedure reached to an agreement between purchaser and manufacturer.

Routine test
The optical attenuation coefficient on all production cable lengths is measured according to IEC 60793-1-CIC (Back-scattering technique, OTDR). Standard single-mode fibers are measured at 1310nm and at 1550nm. Non-zero dispersion shifted single‒mode (NZDS) fibers are measured at 1550nm.

Factory test
Factory acceptance test is carried out on two samples per order in the presence of the customer or his representative. The requirements for quality characteristics are determined by relevant standards and agreed quality plans.

Quality Control - Test Equipment and Standard:

Feedback: In order to meet the world’s highest quality standards, we continuously monitor feedback from our customers. For comments and suggestions, please, contact us, Email: [email protected].