Center-beam-tube full-dry-type indoor and outdoor universal cable

A central beam tube and all-dry technology, which is applied in the field of optical communication transmission, can solve the problems of increased manufacturing costs, inconvenient use, and increased weight of optical cables, and achieve cost savings, good thermal stability, and reliable water resistance.
CN103995330AInactive Publication Date: 2014-08-20ZHEJIANG SHIP ELECTRONICS TECH
8 Cites 1 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
ZHEJIANG SHIP ELECTRONICS TECH
Publication Date
2014-08-20
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention relates to a center-beam-tube full-dry-type indoor and outdoor universal cable which includes first dry-type water resistance parts, second dry-type water resistance parts and an outer sheath. The outer sheath is circular and the circle center is the circle center of the outer sheath. The outer sheath wraps an inner sheath and a water resistance layer I is arranged between the outer sheath and the inner sheath. The inner sheath wraps a center bushing. The plurality of dry-type water resistance parts are uniformly laid on the inner wall of the center bushing and the second dry-type water resistance parts are uniformly distributed around the circle center of the outer sheath. A plurality of optical fibers are uniformly arranged at the periphery of the second dry-type water resistance parts and the optical fibers and the first dry-type water resistance parts are arranged to surround the circle center of the outer sheath. A water resistance layer II is also arranged between the inner sheath and the center bushing. A cable opening rope is arranged in the outer sheath. The first dry-type water resistance parts and the second dry-type water resistance parts are made of a rapid expansion yarn and capable of absorbing effectively water and stopping the water from penetration and expansion so that the cable reaches a full-dry state and signal attenuation brought by the optical fibers because of environment factors such as temperature and humidity and the like is reduced.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to an indoor and outdoor universal optical cable, in particular to a central bundle tube full-dry indoor and outdoor universal optical cable, which belongs to the technical field of optical communication transmission. Background technique

[0002] Patent No. ZL200520098388 designed an indoor and outdoor dual-purpose optical cable, which includes a cable core and a flame-retardant inner sheath covering the cable core. A water-blocking layer is provided outside the flame-retardant inner sheath. The metal band is covered with an outer sheath. Because the optical cable sleeve contains fiber paste, it not only increases the weight of the optical cable, but also has a certain impact on the connection of the optical fiber and the indoor and outdoor environment after laying. In addition, the optical cable has an aluminum tape armor structure, although the protection of the optical cable is enhanced. At the same time, the weight of the op...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More