Publication details
| Publication CODE |
Title |
| NBN EN IEC 60793-1-44:2023 (2023-09) |
OPTICAL FIBRES - PART 1-44: MEASUREMENT METHODS AND TEST PROCEDURES - CUT-OFF WAVELENGTH |
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| Price Excl. VAT |
Total number of pages, tables and drawings |
|
14.00 €
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3. |
Description
IEC 60793-1-44:2023 establishes uniform requirements for measuring the cut-off wavelength of single-mode optical fibre, thereby assisting in the inspection of fibres and cables for commercial purposes. This document gives methods for measuring the cut-off wavelength for uncabled or cabled single mode telecom fibre. These procedures apply to all category B and C fibre types. There are three methods of deployment for measuring the cut-off wavelength:
- method A: cable cut-off using uncabled fibre 22 m long sample, lcc;
- method B: cable cut-off using cabled fibre 22 m long sample, lcc;
- method C: fibre cut-off using uncabled fibre 2 m long sample, lc.
All methods require a reference measurement. There are two reference-scan techniques, either or both of which can be used with all methods:
- bend-reference technique;
- multimode-reference technique using category A1(OM1-OM5) multimode fibre.
This third edition cancels and replaces the second edition published in 2011. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
a) used the diameter of the fibre loops to describe deployment;
b) added Annex D related to cut-off curve artifacts;
c) reorganized information and added more figures to clarify concepts.
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| Class |
C
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Available files
ATTENTION: Belgian registered standards (NBN EN or NBN HD) are generally
only available in English or French. Only the cover page is translated
and the document itself is in English or in French.
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Status
Origin
| Committee |
CLC/TC 86A
Optical fibres and optical fibre cables
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Approval
| BEC Approval |
2023-08-28 |
| NBN Approval |
2023-09-06 |
| NBN Status |
New |
|
| Date of ratification (d.o.r.) |
2023-08-28 |
| Date of announcement (d.o.a.) |
2023-11-28 |
| Date of publication (d.o.p.) |
2024-05-28 |
| Date of withdrawal former edition (d.o.w.) |
2026-08-28 |
| IEC file modification date |
2023-09-02 |
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