產品描述：
GYFA光纜結構是：光纖位于帶阻水紗的松套管中；纜芯中心是非金屬加強芯FRP（可能會加PE墊層），FRP周圍由松套管、填充繩絞合而成，纜芯內的間隙填充阻水紗，纜芯外包阻水帶；最后光纜擠塑鋁聚乙烯護套。
The fibers are positioned in a loose tube made of a high modulus plastic. The tubes are filled with water blocking yarns. A Fiber Reinforced Plastic (FRP) (may PE blanket) locates in the center of core as a non-metallic strength member. The tubes (ａnd fillers) are stranded around the strength member into a compact and circular core. The cable core is filled with the water blocking yarns .Then ,A water blocking tape is applied around the cable core. After an Aluminum Polyethylene Laminate (APL) moisture barrier is applied around the cable core, the cable is completed with a PE sheath.
光纜芯數范圍：2～288芯
Optical cable core number: 2 ~ 288 core
光纖種類及其主要光學特性:
Optical fiber types and their optical characteristics:
光纖類別 Fiber type | 衰減（20℃） Attenuation（20℃） | 帶寬Bandwith | 光纜截止波長Cable Cut-off Wavelength lcc | |||
1310nm | 1550nm | 850nm | 1300nm | 850/1300nm | ||
單位unit | dB/Km | dB/Km | dB/Km | dB/Km | MHz．Km | nm |
G652D | ≤0.36 | ≤0.22 | --- | --- | --- | ≤1260 |
G655 | ≤0.40 | ≤0.23 | --- | --- | --- | ≤1450 |
50/125 | --- | --- | ≤3.3 | ≤1.2 | ≥500/500 | --- |
62.5/125 | --- | --- | ≤3.3 | ≤1.2 | ≥200/500 | --- |
高貝50/125 HiBand 50/125 | --- | --- | ≤3.0 | ≤1.0 | ≥500/1000 | --- |
高貝62.5/125 HiBand 62.5/125 | --- | --- | ≤3.0 | ≤1.0 | ≥200/600 | --- |
OM2（超貝®150 MaxBand® 150） | --- | --- | ≤3.0 | ≤1.0 | ≥700/500 | --- |
OM3（超貝®300 MaxBand® 300） | --- | --- | ≤3.0 | ≤1.0 | ≥1500/500 | --- |
OM4（超貝®550 MaxBand® 550） | --- | --- | ≤3.0 | ≤1.0 | ≥3500/500 | --- |
產品特點：
1、松套管內和纜芯放入特種阻水紗，對光纖進行了關鍵性保護；
2、光纜結構設計非常緊密；
3、具有良好的柔韌性；
4、具有非常好的機械特性和溫度特性；
5、具有很強的阻水防潮性能；
6、PE外護套有很強的抗紫外線輻射性能和耐磨性能；
Product features:
1,Special water-blocking yarns ensure a critical protection of fiber in loose tubes and the cable core;
2, Cable structure design is very compactness;
3, It has good flexibility;
4, With very good mechanical characteristics and temperature characteristics;
5, It has a strong water resistance and moisture resistance;
6, PE outer sheath has very strong ultraviolet radiation resistance and wear resistance;
主要性能：
1、允許拉力：“長期/短期”為“300N/1000N”或者“600N/1500N”或者“1000N/3000N”；
2、允許壓扁力：長期300N/100mm，短期1000N/100mm；
3、彎曲半徑：靜態彎曲半徑10倍光纜外徑，動態彎曲半徑20倍光纜直徑；
4、儲存和使用溫度范圍：-40～+70℃。
Main performance:
1, Tensile Strength: “long term/short term” can be “300N/1000N” or “600N/1500N” or “1000N/3000N”;
2, Crush Resistance: long term 300N/100mm, short term 1000N/100mm;
3, Bending radius: The static bending radius is 10 times the optical cable diameter, the dynamic bending radius is 20 times the optical cable diameter;
4, Storage and operating of temperature range: -40～+70℃.
用途：
用于室外干線網、局域網，廣泛用于電信、移動、聯通、有線電視、高速公路、鐵路、地鐵、石油化工、國防、視頻監控等領域。
Uses:
used for outdoor trunk network, LAN, widely used in telecommunications, , cable TV, highway, railway, subway, petrochemical, national defense, video surveillance and other fields.
施工方式：管道、架空，也可以用于溝槽。
Application: Duct, Aerial, Can also be used for trench.
滿足標準：YD/T 901和IEC 60794-1標準。
This kind of cable complies with standard YD/T 901 as well as IEC 60794-1.
光纖色譜和套管色譜：
1、光纖色譜為“全色譜”，顏色依次為：藍色、橙色、綠色、棕色、灰色、白色（或本色）、紅色、黑色、黃色、紫色、粉紅色、水綠色；
2、套管色譜通常分兩種：
（1）全色譜，顏色依次為：藍色、橙色、綠色、棕色、灰色、白色、紅色、黑色、黃色、紫色、粉紅色、水綠色；
（2）領示色譜，顏色依次為：紅色、綠色、自然色、自然色、自然色、自然色、自然色、自然色、自然色、自然色、自然色、自然色，領示色“紅、綠”可以是套管，也可以是填充繩。
Colour Arrangement of fibers and loose tubes:
1, Standard fiber colour identification, followed by color: blue, orange, green, brown, gray, white(or natural), red, black, yellow, purple, pink, aqua;
2, Colour Arrangement of loose tubes in cable is usually divided into two kinds:
(1) The full colour identification, followed by color: blue, orange, green, brown, gray, white, red, black, yellow, purple, pink, aqua;
(2) The indicatory colour identification, color is red, green, natural, natural, natural, natural, natural, natural, natural, natural, The color "red, green" can be loose tubes, can also be fillers.
