IEC 61 1 96 1 31 4 Edition 2 0 201 5 08 INTERNATIONAL STANDARD Coaxial communication cables – Part 1 31 4 Mechanical test methods – Test for bending IE C 6 1 1 9 6 1 3 1 4 2 0 1 5 0 8 (e n ) ® Copyrig[.]
Trang 1IEC 61 196- 1 - 31 4
Edit io 2.0 2 15-0
Part 1- 314: Mechanical test methods – Test for bending
Trang 2THIS PUBLICATION IS COPYRIGHT PROT CTED
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Trang 3IEC 61 1 96- 1 - 31 4
Edit io 2.0 2 15-0
Coax ial communicat ion cables –
Part 1- 314: Mechanical t est met hods – Test for bending
Trang 4CONTENTS
FOREWORD 4
1 Sco e 6
2 Normative ref eren es 6
3 Terms an def i ition 6
4 Ben in arou d a test man rel 6
4.1 Eq ipment 6
4.2 Test sample 7
4.3 Proced re 7
4.3.1 General 7
4.3.2 Proced re 1 7
4.3.3 Proced re 2 7
4.3.4 Req irements 7
4.3.5 Test re ort 7
5 Re e ted b n in 7
5.1 Eq ipment 7
5.2 Test sample 8
5.2.1 Sample len th 8
5.2.2 Termination 8
5.3 Proced re 8
5.4 Req irements 8
5.5 Test re ort 8
6 Flexin 10 6.1 Eq ipment 10 6.2 Test sample 10 6.3 Proced re 10 6.4 Req irements 10 6.5 Test re ort 10 7 Flexin en uran e 1
7.1 Eq ipment 1
7.2 Test sample 1
7.3 Proced re 1
7.4 Req irements 1
7.5 Test re ort 1
8 Ca le b n in u der ten ion (d namic test 12
8.1 Eq ipment 12
8.2 Test sample 12
8.3 Proced re 12
8.3.1 General 12
8.3.2 Proced re 1 13
8.3.3 Proced re 2 13
8.4 Req irements 13
8.5 Test re ort 13
9 Stif f nes 14
9.1 General 14
9.2 Eq ipment 15
Trang 5Fig re 7 – Test set-up f or method A: Thre p int b n in test 17
Fig re 8 – Test set-up f or method B: Cantiever test 17
Fig re 9 – Test set-up f or compres ion force 18
Fig re 10 – Example of es lts of a pled f orce an displacement 18
Fig re 1 – Kin test 19
Trang 6INTERNATIONAL ELECTROTECHNICAL COMMISSION
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International Stan ard IEC 61 9 -1-314 has b en pre ared by s bcommit e 4 A: Co xial
ca les, of IEC tec nical commit e 4 : Ca les, wires, waveg ides, R.F con ectors, R.F an
microwave p s ive comp nents an ac es ories
This secon edition can els an re laces the edition publ s ed in 2 0 This edition
con titutes a tec nical revision This edition in lu es the fol owin sig ifi ant tec nical
c an e with resp ct to the previou edition:
– Clau e 4 (sin le b n in test was completely revised
The text of this stan ard is b sed on the f ol owin doc ments:
Trang 7Ful information on the votin for the a proval of this stan ard can b f ou d in the re ort on
votin in icated in the a ove ta le
This publcation has b en draf ted in ac ordan e with the ISO/IEC Directives, Part 2
This stan ard is inten ed to b re d in conju ction with IEC 61 9 -1:2 0 , on whic it was
b sed
A l st of al p rts in the IEC 61 9 series, u der the general title: Co x ial c mmu ic tio
c bles, can b fou d on the IEC we site
The commit e has decided that the contents of this publcation wi remain u c an ed u ti
the sta i ty date in icated on the IEC we site u der "htp:/ we store.iec.c " in the data
related to the sp cifi publ cation At this date, the publ cation wi b
Trang 8COAXIAL COMMUNICATION CABLES –
Part 1- 314: Mechanical test methods –
Test f or bending
This p rt of IEC 61 9 a pl es to co xial commu ication ca les It sp cifies test method to
determine the b n in tests for ca les:
• b n in arou d a test man rel (Clau e 4);
The f olowin doc ments, in whole or in p rt, are normatively referen ed in this doc ment an
are in isp n a le f or its a pl cation For dated ref eren es, only the edition cited a pl es For
u dated ref eren es, the latest edition of the referen ed doc ment (in lu in an
ht p:/www.electro edia.org/
IEC 61 9 -1, Co x ial c mmu ic tio c bles – P art 1: Ge eric s e ific tio – Ge eral,
definitio s a d re uireme ts
Mec a ic l te t methods – Ge eral re uireme ts
A sin le man rel a p ratu s al ena le the sample to b wra p d tan ential y in a close
hel x arou d a test man rel
Trang 9The sample s al b wra p d in a close hel x arou d the man rel at a u iform rate Suf f icient
ten ion s al b a pl ed to en ure that the sample contours the man rel The sample s al
The test con ists of one wra pin an one u wra pin
The diameter of the test man rel an the n mb r of turn p r hel x s al b s own in the
sectional or detai sp cif i ation
4.3.3 Proc d re 2
The sample s al b b nt arou d a man rel throu h 18 ° an ke t taut d rin the b n in
The test con ists of one U b n fol owed by a reverse U b n , an returned to the straig t
p sition The diameter of the test man rel s al b stated in the sectional or detai
sp cif i ation
4.3.4 Re uireme ts
The ac e tan e criteria f or the test s al b stated in the sectional or detai sp cifi ation
Typical fai ure modes in lu e los of electrical contin ity, degradation of tran mis ion
p rforman e or ph sical damage to the ca le
4.3.5 Te t rep rt
The test re ort s al in lu e:
a) proced re to b u ed (proced re 1 or proced re 2);
b) test man rel diameter (or ratio of man rel diameter to ca le diameter);
c) n mb r of turn (for proced re 1);
d) maximum alowa le at en ation in re se:
1) d rin the test (if a pl ca le);
2) af ter the test (if a plca le);
e) test temp rature;
f) p s /f ai criteria
5.1 Equipme t
The a p ratu s al p rmit a sample to b b nt b c ward an f orward throu h an les up to
18 °, the two extreme p sition makin an an le of 9 ° on b th sides of the vertical, whi st
b in s bjected to a ten i e lo d For testin ca les, a s ita le a p ratu is s own in Fig re 1
For testin ca le/con ector as embl es, a s ita le a p ratu is s own in Fig re 2 Other
eq ivalent a p ratu may b u ed
Trang 10The b n in arm s al have an adju ta le clamp of fi ture to p rmit holdin the ca le
sec rely d rin the entire test For con ectorized ca les, a con ector may b u ed to hold the
ca le on the b n in arm providin that its c aracteristic f it with the ten i e lo d
The a p ratu s al b ca a le of c cl n Displacin the sample f rom the vertical p sition to
the extreme rig t p sition then os i atin to the extreme lef t p sition an returnin to the
original vertical p sition is con idered to b one c cle Unles otherwise sp cif ied in the
sectional or detai sp cifi ation, the b n in rate s al b a proximately one c cle in 2 s
tran mis ion p rforman e req ested in the sectional or detai sp cif i ation
5.2 Te t s mple
5.2.1 Sample le gth
The sample len th s al b s f f icient to car y out the testin sp cified When only ph sical
damage is to b evaluated, the len th may ran e from 1 m (for example for smal diameter
jump r cord ) to 5 m (f or larger diameter ca les) L n er len th may b neces ary to p rmit
tran mis ion me s rements
5.2.2 Termination
The sample may b terminated at e c en in a con ector, or in a re resentative man er
The clamps on the b n in a p ratu may b adeq ate, or the sample may b lon enou h
that no restraint is ne ded
The proced re can b def i ed in fi e ste s
a) Precon ition sample at stan ard atmospheric con ition for 2 h
b) Ap ly the weig t of mas as s own in the sectional or detai sp cif i ation
c) Me s re ac e tan e criteria p rameters to esta l s b sel ne values
d) Car y out re e ted b n in for the n mb r of c cles sp cif ied in the sectional or detai
sp cif i ation
e) Car y out ac e tan e criteria p rameter me s rements If neces ary, the sample may b
removed from the a p ratu for vis al examination
5.4 Re uireme ts
The ac e tan e criteria f or the test s al b stated in the sectional or detai sp cif i ation
Typical f ai ure modes in lu e los of tran mis ion p rf orman e of ph sical damage to the
e) test temp rature;
f) p s /fai criteria
Trang 11Figure 1 – Repe te be ding te t for c ble
Figure 2 – Repe te be ding te t f or c ble/conne tor a s mbly
Trang 126 Flexing
6.1 Equipme t
The test is car ied out u in the a p ratu s own in Fig re 3
The pul ey s al have a semicirc lar s a ed gro ve f or circ lar ca les an a f lat gro ve f or
f lat ca les The restrainin clamps D s al b fi ed so that the pul is alway a pled by the
weig t f rom whic the car ier is movin away
6.2 Te t s mple
The sample s al b terminated at e c en in a con ector, or in a re resentative man er
The len th of the sample s al b s f f icient to car y out the testin sp cified
The sample s al b stretc ed over the pul ey , e c en b in lo ded with a weig t The
mas of this weig t an the diameter of the pul ey A an B s al b as sp cified in the
sectional or detai sp cifi ation
The sample s al b f lexed f or the n mb r of c cles sp cif ied in the sectional or detai
sp cif i ation A c cle is defi ed as the movement of the car iage away from its startin
p sition to one en of the traverse f ol owed by movement in the o p site direction to the other
en an then b c to the startin p sition
6.4 Re uireme ts
The ac e tan e criteria f or the test s al b stated in the sectional or detai sp cifi ation
Typical f ai ure modes in lu e los of tran mis ion p rf orman e or ph sical damage to the
Trang 13Figure 3 – Flexing apparatus
7.1 Equipme t
The test is car ied out u in the a p ratu s own in Fig re 4
7.2 Te t s mple
The sample s al b taken f rom one en of a f i is ed ca le
The sample s al b terminated at e c en in a con ector, or in a re resentative man er
The len th of the sample s al b s ff icient to car y out the testin sp cified
The maximum len th of ca le as embly s ould b les than 2 m
The ca le s al b placed on a horizontal ta le in an a p ratu as i u trated in Fig re 4
Whi st one en is fi ed, the other en is moved b c an forth in the direction of the ca le
axis
7.4 Re uireme ts
Af ter the test, the ca le s al s ow no visible damage Electrical req irements stated in the
sectional or detai sp cifi ation s al b compled with
R est rainin c lamp D
R est rainin c lamp D
Pule B
Pule A
R ec iproc at in c aria e