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ATTN 5-Fujikura Cable

The document provides guidelines for safely installing electrical cables with minimum bending radii and maximum pulling tensions to avoid damage. It also lists permissible maximum side wall pressures during installation, guidelines for removing cable sheaths or tapes, cleaning cable insulation surfaces, applying self-adhesive tape to cable joints, and waterproof treatments for outdoor cable terminations.

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Kalaimany Arumuggam
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132 views11 pages

ATTN 5-Fujikura Cable

The document provides guidelines for safely installing electrical cables with minimum bending radii and maximum pulling tensions to avoid damage. It also lists permissible maximum side wall pressures during installation, guidelines for removing cable sheaths or tapes, cleaning cable insulation surfaces, applying self-adhesive tape to cable joints, and waterproof treatments for outdoor cable terminations.

Uploaded by

Kalaimany Arumuggam
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
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1 .

M i n i m u m b e n d i n g r a d i u s a n d p e r m i s s i b l em a x i m u m
pullingtension
For safetyinstallation withoutdamagingelectricaland
physicalproperties, the followingminimumbending
r a d i u sa n d p e r m i s s i b lm
e a x i m u mp u l l i n gt e n s i o nm u s tb e
observed:

M i n i m u mb e n d i n g r a d i u s D : Overalldia. of cable
Number of core Singlecore
Multi-core
Tvpe of cable Roundeonductor Foursegmentalstrandedconduetor
6 0 0 / 1 0 0 0V c a b l e 8D 12D 6D
3 . 3 0 0V c a b l ea n d h i g h e r 10D 12D 8D
Triplextype cable 8D
Corrugatedmetal armouredcable 10D 12D 8D
Flattaoe armouredcable 10D 12D 8D
Wire armouredcable 10D 12D 8D
Lead sheathedcable 10D 12D 10D

Permissiblemaximum pulling tension

Pullingtool Materialof conductor Permissiblemaximumpullingtension(kg)


Copper 7 X (Numberof core)X (Cross-sectional
area of conductor)
P u l l i n ge y e
Aluminium 4 X (Numberof core)X (Cross-sectional area of conductor)
The same as usingthe pullingeye, but the maximumtension
Cablegrip C o p p e r& a l u m i n i u m
shouldbe lessthan two tons.

Note When cablegrip is used it shouldcovermorethan 500 mm in lengthof the


cableend and be boundto the cablesheath.

2. Side wall pressure to cable 3 . Removal of sheath or tape


Permissible
maximumside wall oressureto the Specialcare must be taken not to harmthe
cableat bendingpointduringinstallation
is 500 kg/m. insulationwhen removingthe sheathor tapeswith
a knifeotherwiseit may resultin a dielectric
breakdown.
Note:
4 . Cleaningthe surface of insulation
tension(kg)
side wall presureto cable= Pulling = T The surfaceof insulationshouldbe cleanedto
bendingradius(m) R
avoida flashover at the cableterminationor joint.
T : P u l l i n gt e n s i o n( k g )
R : B e n d i n gr a d i u s( m ) 5 . Applying of self-adhesive tape
When applyinga self-adhesive tape afterjointingor
terminatingof XLPE cable,stretchit properlyabout
1.2 timesas long as the originalone. lf it is over-
stretchedcrack may occur on the tape in the long
run and if not stretchedproperly,tape will not be
adhered betweeneach laver.

6. Water proof treatment for out-door termination


For out-doorterminationwater prooftreatmentis
necessaryto avoid the water penertratinginto the
cableend and specialcare must be takento apply
taoesand terminals.lt is desirableto use a
compressionor soldertype terminal.

17

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