{"id":126378,"date":"2024-10-19T05:36:16","date_gmt":"2024-10-19T05:36:16","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-en-iec-60793-1-222024\/"},"modified":"2024-10-24T23:19:48","modified_gmt":"2024-10-24T23:19:48","slug":"bs-en-iec-60793-1-222024","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-en-iec-60793-1-222024\/","title":{"rendered":"BS EN IEC 60793-1-22:2024"},"content":{"rendered":"

IEC 60793-1-22:2024 establishes uniform requirements for measuring the length and elongation of optical fibre (typically within cable). The length of an optical fibre is a fundamental value for the evaluation of transmission characteristics such as losses and bandwidths.<\/p>\n

PDF Catalog<\/h4>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
2<\/td>\nundefined <\/td>\n<\/tr>\n
5<\/td>\nAnnex ZA (normative)Normative references to international publicationswith their corresponding European publications <\/td>\n<\/tr>\n
6<\/td>\nEnglish
CONTENTS <\/td>\n<\/tr>\n
9<\/td>\nFOREWORD <\/td>\n<\/tr>\n
11<\/td>\nINTRODUCTION <\/td>\n<\/tr>\n
12<\/td>\n1 Scope
2 Normative references
3 Terms, definitions, and abbreviated terms
3.1 Terms and definitions
3.2 Abbreviated terms <\/td>\n<\/tr>\n
13<\/td>\n4 Overview of method
4.1 General
4.2 Method A \u2013 Delay measuring
4.3 Method B \u2013 Backscattering
4.4 Method C \u2013 Fibre elongation
4.5 Method D \u2013 Mechanical length
Tables
Table 1 \u2013 Measurement methods <\/td>\n<\/tr>\n
14<\/td>\n4.6 Method E \u2013 Phase shift
4.7 Reference test method
5 Apparatus
6 Sampling
7 Procedure
8 Calculations
9 Results <\/td>\n<\/tr>\n
15<\/td>\n10 Specification information <\/td>\n<\/tr>\n
16<\/td>\nAnnexes
Annex A (normative) Requirements specific to method A \u2013 Delay measuring
A.1 General
A.2 Principle
A.3 Apparatus
A.3.1 Two techniques <\/td>\n<\/tr>\n
17<\/td>\nA.3.2 Optical source
Figures
Figure A.1 \u2013 Time measurement of the transmitted pulse
Figure A.2 \u2013 Time measurement of the reflected pulse <\/td>\n<\/tr>\n
18<\/td>\nA.3.3 Optical detector
A.4 Procedure
A.4.1 Calibration
A.4.2 Average group index value
A.4.3 Length measurement <\/td>\n<\/tr>\n
19<\/td>\nA.5 Calculations
A.5.1 General
A.5.2 Transmitted-pulse technique
Figure A.3 \u2013 Principle of fibre-length measurement <\/td>\n<\/tr>\n
20<\/td>\nA.5.3 Reflected-pulse technique
A.6 Results <\/td>\n<\/tr>\n
21<\/td>\nAnnex B (normative) Requirements specific to method B \u2013 Backscattering
B.1 General
B.2 Apparatus
B.2.1 General
B.2.2 Optical transmitter
Figure B.1 \u2013 Block diagram of an OTDR <\/td>\n<\/tr>\n
22<\/td>\nB.2.3 Launch conditions
B.2.4 Optical coupler or splitter
B.2.5 Optical receiver
B.2.6 Pulse duration and repetition rate
B.2.7 Signal processor
B.2.8 Display
B.2.9 Data interface (optional)
B.2.10 Reflection controller (optional) <\/td>\n<\/tr>\n
23<\/td>\nB.2.11 Splices and connectors
B.3 Sampling
B.4 Procedure
B.4.1 Three techniques
B.4.2 Procedure common to all three techniques <\/td>\n<\/tr>\n
24<\/td>\nB.4.3 Procedures specific to each technique <\/td>\n<\/tr>\n
25<\/td>\nFigure B.2 \u2013 Schematic OTDR trace of a sample (z1 to z0) with a section of unknown length, z1, preceding it and without a reflection pulse from the fibre joint point (two-point technique (B.4.3.1))
Figure B.3 \u2013 Schematic OTDR trace of sample (z1 to z2) with a section of unknown length, z1, preceding it and with a reflection pulse from the fibre joint point (two-point technique (B.4.3.1)) <\/td>\n<\/tr>\n
26<\/td>\nB.4.4 Determination of group index
Figure B.4 \u2013 Schematic trace of a sample (0 to z2) with no section preceding it (single-point technique 0 (B.4.3.2))
Figure B.5 \u2013 Schematic OTDR trace of a sample (zD to z2) with a section of known length, zD, preceding it (single-point technique 1 (B.4.3.3)) <\/td>\n<\/tr>\n
27<\/td>\nB.5 Results <\/td>\n<\/tr>\n
28<\/td>\nAnnex C (normative) Requirements specific to method C \u2013 Fibre elongation
C.1 Principle
C.2 Apparatus
C.2.1 General requirements <\/td>\n<\/tr>\n
29<\/td>\nC.2.2 Optical measurement equipment
C.2.3 Instrument resolution
Figure C.1 \u2013 Equipment set-up for phase-shift technique (C.2.2.2) <\/td>\n<\/tr>\n
30<\/td>\nC.3 Procedure
C.3.1 Calibration
C.3.2 Sample measurement
Figure C.2 \u2013 Equipment set-up for differential pulse-delay technique (C.2.2.3) <\/td>\n<\/tr>\n
31<\/td>\nC.4 Results <\/td>\n<\/tr>\n
32<\/td>\nAnnex D (normative) Requirements specific to method D \u2013 Mechanical length
D.1 Principle
D.2 Apparatus
D.3 Procedure
D.3.1 Calibration
D.3.2 Operation <\/td>\n<\/tr>\n
33<\/td>\nAnnex E (normative) Requirements specific to method E \u2013 Phase shift
E.1 General
E.2 Apparatus
E.2.1 General
E.2.2 Light source
E.2.3 Modulator <\/td>\n<\/tr>\n
34<\/td>\nE.2.4 Launch optics
E.2.5 Signal detector and signal detection electronics
E.2.6 Reference signal <\/td>\n<\/tr>\n
35<\/td>\nE.2.7 Computation equipment
E.3 Sampling
E.4 Procedure
E.4.1 Selection of starting frequency
E.4.2 Selection of maximum frequency
E.4.3 Phase measurement performance <\/td>\n<\/tr>\n
36<\/td>\nE.4.4 Measurement of length of test fibre
E.5 Calculation and interpretation of results <\/td>\n<\/tr>\n
37<\/td>\nE.6 Group index
E.6.1 General
E.6.2 Cut-back method
E.6.3 Substitution method <\/td>\n<\/tr>\n
38<\/td>\nFigure E.1 \u2013 Apparatus for fibre length measurement <\/td>\n<\/tr>\n
39<\/td>\nAnnex F (informative) Brillouin frequency shift test method
F.1 General
F.2 Principle <\/td>\n<\/tr>\n
40<\/td>\nF.3 Apparatus
F.3.1 General requirements
F.3.2 Optical measurement equipment <\/td>\n<\/tr>\n
41<\/td>\nF.3.3 Instrument resolution
Figure F.1 \u2013 Equipment setup for BOTDR technique
Figure F.2 \u2013 Equipment setup for BOTDR technique <\/td>\n<\/tr>\n
42<\/td>\nF.4 Procedure
F.4.1 Calibration
F.4.2 Sample measurement <\/td>\n<\/tr>\n
43<\/td>\nFigure F.3 \u2013 Differential strain recorded during a pulling test over a 100 m of cable
Figure F.4 \u2013 Absolute strain profile recorded during a pulling test over a 100 m of cable <\/td>\n<\/tr>\n
44<\/td>\nF.5 Results <\/td>\n<\/tr>\n
45<\/td>\nBibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

Optical fibres – Measurement methods and test procedures. Length measurement<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
BSI<\/b><\/a><\/td>\n2024<\/td>\n46<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":126379,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[649,2641],"product_tag":[],"class_list":{"0":"post-126378","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-33-180-10","7":"product_cat-bsi","9":"first","10":"instock","11":"sold-individually","12":"shipping-taxable","13":"purchasable","14":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/126378","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media\/126379"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=126378"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=126378"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=126378"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}