Most ebook files are in PDF format, so you can easily read them using various software such as Foxit Reader or directly on the Google Chrome browser.
Some ebook files are released by publishers in other formats such as .awz, .mobi, .epub, .fb2, etc. You may need to install specific software to read these formats on mobile/PC, such as Calibre.
Please read the tutorial at this link: https://ebookbell.com/faq
We offer FREE conversion to the popular formats you request; however, this may take some time. Therefore, right after payment, please email us, and we will try to provide the service as quickly as possible.
For some exceptional file formats or broken links (if any), please refrain from opening any disputes. Instead, email us first, and we will try to assist within a maximum of 6 hours.
EbookBell Team
4.0
96 reviewsOPTICAL FIBRE CABLES –
Part 3: Outdoor cables – Sectional specification
1 Scope
This part of IEC 60794 specifies the requirements for optical fibre cables and cable elements
which are intended to be used externally in communications networks. Other types of
applications requiring similar types of cables can be considered.
Requirements for cables to be used in ducts, for directly buried applications, aerial cables and
cables for lake and river crossings are included in this document. Also included are cables for
specialized use in sewers and in water and gas pipes.
For aerial application, this document does not cover all functional aspects of cables installed in
the vicinity of overhead power lines. For such applications, additional requirements and test
methods can be necessary. Moreover, this document excludes optical ground wires and cables
attached to the phase or earth conductors of overhead power lines.
For cables for lake and river crossings, this document does not cover methods of cable repair,
nor repair capability, nor does it cover cables for use with underwater line amplifiers.
