代号
① 分类的代号
GY——通信用室(野)外光缆
GJ——通信用室(局)内光缆
② 加强构件的代号
无符号——金属加强构件
F——非金属加强构件
③ 结构特征的代号
无符号——松套结构
J——紧套结构
X——中心管式结构
T——填充式结构
Z——阻燃型
(无符号)——非阻燃型
④ 护套的代号
Y——聚乙烯护套
V——聚氯乙烯护套
U——聚氨酯护套
A——铝—聚乙烯粘结护套
S——钢—聚乙烯粘结护套
W——夹带钢丝钢-聚乙烯粘结护层
⑤ 外护层的代号
参照GB/T 2952.1的规定,用数字表示。如:
53——皱纹纲带铠装聚乙烯外护套
33——钢丝铠装聚乙烯外护套
93——钢丝编织铠装聚乙烯外护套
规格
① 光纤数量的代号
用光缆中同类别光纤的实际有效数目的数字表示
② 光纤类别的代号
光纤类别应采用光纤产品的分类代号表示,即用大写A和B分别表示多模光纤和单模光纤,再以数字或小写字母表示不同种类的多模光纤和单模光纤。常用代号如下:
A1a—50/125μm二氧化硅系渐变型多模光纤
A1b—62.5/125μm二氧化硅系渐变型多模光纤
B1.1—非色散位移单模光纤(ITU-T G 652A、B光纤),(B1.1可简写为B1)
B1.3—波长扩展的非色散位移单模光纤
(ITU-T G 652C、D光纤)
B4 — 二氧化硅系非零色散位移单模光纤
(ITU-T G.655光纤)
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Type
① Symbol of the classification
GY——outdoor(field)communication optical cable
GJ——indoor communication optical cable
② Symbol of strength member
No symbol——metallic strength member
F——non-metallic strength member
③ Symbol of structure characteristics
No symbol——loose tube structure
J—— tight structure
X——central tube structure
T——jelly-filled structure
Z——Flame retardant type
④ Symbol of sheath
Y——PE sheath
V——PVC sheath
U——polyurethane
A——Al-polyethylene laminated sheath
S——steel-polyethylene laminated sheath
W——with embedding steel-polyethylene laminated sheath
⑤ Symbol of protective covering
According to the provision of GB/ T 2952.1, denoted with the figure, such as:
53—-Corrugated steel-tape armored polyethylene outer sheath
33――Steel wire armored polyethylene outer sheath
93――Steel wire braid armored polyethylene outer sheath
Specification
① Symbol of the fiber quantity
It is denoted by virtual number of congeneric fiber in optical cable.
② Symbol of fiber sort
It is denoted by classified symbol of fiber,namely, capital letter A and B denote multimode fiber and single-mode fiber separately. number or small letter denote different kinds ofmultimode fiber and single-mode fiber. Common symbols are as follows:
A1a—50/125μm silicon dioxide series gradient multimode fiber
A1b—62.5/125μm silicon dioxide series gradient multimode fiber
B1.1—dispersion-unshifted single-mode fiber (ITU-T G.652A,B
fiber),(B1 is shorthand for B1.1)
B1.3—extended wavelength band dispersion-unshifted
single-mode fiber (ITU-T G.652C,D fiber)
B4—silicon dioxide series non?zero?dispersion shifted
single-mode fiber(G.655 in ITU-T fiber)
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