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| Optical
Fibre Cables |
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Cable manufactured by ISO 9001 certified company in technical
collaboration with BICC of UK, having a capacity of 60000
Fbire kilometer(fkm). The plant has a modern laboratory
equipped with test equipments such as fibre geometry test
set, fibre analysis system, chromatic dispersion system,
power meter, sensors, optical fibre switch, OTDR, etc.
besides the raw material testing facilities.
Cables can be offered as per international specifications
as well as individualised customer requirement, also offers
a vast range of jointing closure kits(straight joints,
branch joints, patch cords, pig tails, tool kit,
connectors) . Cable description : The cable is
constructed using a fibre reinforced plastic central
strength member. Around this are stranded polybutylene
terapthalate loose tubes (Containing single mode fibres
and thixotropic jelly) and polyethylene fillers,
if required. The Interstices are filled with water
repellant compound and a polyester tape iswrapped over
the core. This is sheathed with black high density
polyethylene.For a duct cable, an anti-termite
Nylon 12 jacket is extruded over the sheath.For an armoured
cable, the sheath is covered with a corrugated steel
tape over which is extruded a layer of high density
polyethylene. For an aerial cable, a layer of
high modulus aramid yarn is applied over the sheath
as a peripheral tension relief member, and a layer of
high density polyethylene is extruded as an outer jacket.
| Fibre characteristics : |
|
|
| Type |
: |
Single mode (photograph 1 * rpg cables ltd., catalogue
3rd page single photograph) |
| Mode field diameter (nominal) |
: |
|
| For match clad |
: |
9.5 um +/- 10% |
| Mode field concentricity error |
: |
</- 1um |
| Cladding diameter (nominal) |
: |
125 um +/- 2.0 um ( telecom cables catalogue 3rd
page 3 photographs (one by one) in vertical form) |
| Cut off wavelength |
: |
1320 nm max. |
Attenuation
(at 1280 - 1330 nm band )
At 1550 nm |
: |
</- 0.40 db/km
</- 0.25 db / km
|
| Total dispersion |
|
|
| in 1285 -1330 nm |
: |
</- 3.5 ps/nm.km |
| at 1550 nm |
: |
</- 20 ps/nm.km |
| zero dispersion slope |
: |
</-0.093 ps/ (nm.km) |
| Diameter over secondary coat |
: |
250 um +/- 15 um |
| Proof test for minimum strain |
: |
1 % |
| Duration of proof test |
: |
>/- sec |
| Manufacturing range |
: |
2 Fibres to 216 Fibres (Single mode / multi mode) |
| Design |
: |
Unitube / multitube / Indoor - outdoor unarmoured. |
| Construction |
: |
Armoured / Aeriel (Zero-strain) |
| Cables can be offered
as per International specification as well as indivitual
customer requirements. |
|
| Jelly
Filled Telephone Cables |
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| Manufactured by ISO 9001 certified
company in technical collaboration with BICC of UK, having
capacity of 4.5million conductor kilometers(ckm). General
Construction RPG Cables Ltd., Catalogue 3rd page No.2
Photograph 2
Copper conductor, polyethylene insulated, colour coded,
twisted into pairs, pairs bunched into units/ super
units with colour coded binders, super units cabled
to form cable core, jelly filled, polyester type wrapped
as heat barrier, flooded with jelly and laminated aluminium
longitudinaly applied as electrostatic screen, polyethylene
sheathed, galvanised steel type armoured over a bedding
of polyethylene tapes and jacketed overall with polyethylene
in black colour.
Cables can be offered as per International specification
as well as indivitual customer requirements.
ELECTRICAL CHARACTERISTICS
| NOMINAL COPPER CONDUCTOR
DIA ( in mm) |
RESISTANCE NOM.@ 20
deg.C
ohms / km |
AVG.MUTUAL CAPACITANCE
nF/km |
ATTENUATION @ 150 KHZ
(dB/km) |
CROSS TALK @
150 khz(db/KM) - rms |
| NEXT |
ELFEXT |
| 0.40 |
135 |
52 + /- 3 |
12.00 |
> 55 |
>67.8 |
| 0.50 |
86 |
52 + /- 3 |
8.25 |
| 0.63 |
58 |
52 + /- 3 |
6.30 |
| 0.90 |
28 |
52 + /- 3 |
4.40 |
Cable description
: Polyethylene
Insulated Jelly filled telephone cables.
TECHNICAL
DATA OF CABLE
(Solid & FOAM skin PE)
Characteristics
| 1.
Physical construction:- |
Min
(mm) |
Max
(mm |
| 0.392
& 0.490 |
0.402
& 0.500 |
| 1.1
Conductor size and material for 0.4 & 0.5mm |
Copper
- solid annealed circular in section as per IEC
28 spec |
| 1.2
Insulating thickness for 0.4 & 0.5mm |
|
| Solid |
0.99
& 0.255 |
0.229
& 0.290 |
| Foam
- skin |
0.139
& 0.170 |
0.174
& 0.205 |
| 1.3
Core wrapping material & thickness |
Polyester
tape with a thickness of 0.036mm |
| 1.4
Screen material thickness of screen & polymer
coating (mm) |
Screen
- Aluminium tape thickness of 0.2 +/- 0.02 coated
on both side with polythene of 0.05 +/-0.005mm thickness. |
| 1.5
Sheath & Jacket material |
L
D P E |
| 1.6
Armouring material |
Galvanised
steel tape |
| 1.7
Thickness |
0.5mm
+/- 10% upto 300/0.5 & 0.8mm +/- 10% above 300
/ 0.5 |
| (Solid) |
0.5mm
+/- 10% upto 400/0.5 & 0.8mm +/- 10% above 400
/ 0.5 |
| (Foam
- Skin) |
0.8mm
+/- 10% for both solid & FS type of 700/0.4
to 1500 / 0.4 cable. |
| |
|
| 2 Electrical
Characteristics at 20 C:- |
Avg |
Max |
| 2.1 Conductor
Resistance for 0.4 & 0.5mm size |
- |
143
& 92 ohms / km |
| 2.2 Average
resistance unbalance between two conductors of 0.4
& 0.5mm |
1.5% |
Ind.3.0
%
Ind 2.5 % |
| 2.3 Mutual
Capacitance per Km at 1 KHz |
52
+/-3.0 nF |
Ind.52
+/-4.5nF |
| 2.4 Capacitance
unbalance pair to pair at 1 KHz |
50
pF / km |
Ind.200pF
/ Km |
| 2.5 Capacitance
unbalance pair to ground at 1Khz |
750
pF / km |
Ind.3000
pF / km |
| 2.6 Attenuation
@ 150 KHz for 0.4 & 0.5mm |
12.00
dB / km |
|
| 2.7 Cross-talk
ELFEXT @ 150KHz |
8.25
db / km |
Ind.
Min. - 55.0 dB / Km |
| 2.8 Cross-talk
ONEXT @ 150 KHz |
RMS
67.8 dB / km |
Ind.
Min. - 55.0 dB / Km |
| 2.9 Min
insulation resistance of conductors with 500v
at 20o C for 1 minutes in Mega Ohm |
5000
M ohms for 1 Km |
|
| 2.10
Dielectric Strength test for 3 seconds |
(Solid) |
(Foam
Skin) |
| Wire
- wire |
2.4
kV - 0.4 & 0.5mm |
1.7kV
- 0.4mm & 2.0kV -0.5mm |
| Wire
- screen |
5.0
kV - 0.4 & 0.5mm |
5.0kV
- 0.4mm & 0.5mm |
ELECTRICAL
CHARACTERISTICS
3 : Mechnical Characteristics :
| 3.1 Elongation of conductor |
Min. 15.0% for 0.4 & 0.5mm |
| 3.2 Tensile strength & Elongation
of insulation |
100Kg / Cm2 & 300% |
| 3.3 Tensile strength & Elongation
of sheath |
70 Kg / Cm2 & 300 % |
| 3.4 Carbon content of sheath in
% |
2.5 +/-0.5% |
| 3.5 Tensile strength & Elongation
of G Steel tape |
250 to 450 Mpa & Min 8.0% |
The colour scheme of the unit binder for indentification
will be :
| Unit No. |
Colour of binder |
Unit No. |
Colour of binder |
| 1. |
Blue |
4 |
Brown |
| 2. |
Orange |
5 |
Grey |
| 3. |
Green |
- |
- |
The requisite number of super units will be assembled
as indicated below to form the core .
The numbering of super units in a layer will be as
per makeup of cable shown above.
COLOUR SCHEME FOR BINDER FOR SUPER UNIT IDENTIFICATION
| Position of Super Unit
in the layer |
Colour of Binder |
| First (Marker) |
Red |
| Intermediate |
White |
| Last (Reference) |
Black |
Note : The numbering of super units will be clock-wise
at running end.
Constructional data of Jelly Filled UnArmoured / Armoured Telephone Cables
(Solid and Foam skin Insulation)
CONSTRUCTION DETAILS : Colour Coding of the insulation will be uniform, smooth and
coloured as shown below. The colour will
be identifiable under normal lighting conditions.
COLOUR CODE FOR CONDUCTOR INSULATION
| Pair |
1st wire |
2nd wire |
Pair No. |
1st wire |
2nd wire |
| No. |
(tip) |
(ring) |
|
(tip) |
(ring) |
| 1 |
White |
Blue |
11 |
Black |
Blue |
| 2 |
White |
Orange |
12 |
Black |
Orange |
| 3 |
White |
Green |
13 |
Black |
Green |
| 4 |
White |
Brown |
14 |
Black |
Brown |
| 5 |
White |
Grey |
15 |
Black |
Grey |
| 6 |
Red |
Blue |
16 |
Yellow |
Blue |
| 7 |
Red |
Orange |
17 |
Yellow |
Orange |
| 8 |
Red |
Green |
18 |
Yellow |
Green |
| 9 |
Red |
Brown |
19 |
Yellow |
Brown |
| 10 |
Red |
Grey |
20 |
Yellow |
Grey |
| |
|
(Solid) |
Spare pair |
Natural |
Blue |
Notes:
a) 10 pair unit consists of colour code from pair 1
to 10
b) 20 pair unit consists of colour code from pair 1
to 20
c) The spare pair will be coloured as indicated in the
table for 101 pair super unit only.
MAKE UP OF CABLE
| No.of pairs in cables |
NUMBER OF UNITS / SUPER UNITS (SU) |
No.of pairs in cables |
NUMBER OF UNITS / SUPER UNITS (SU) |
|
|
|
| |
CENTRE LAYER |
FIRST LAYER |
|
CENTRE LAYER |
FIRST LAYER |
SECOND LAYER |
| 10 |
1 X 10 (Unit) |
- |
300 |
1X50(S U) |
5 X 50 (S U) |
- |
| 20 |
1 X 20 (Unit) |
- |
400
2X50(S U) |
6 X 50 (S U) |
- |
| 30 |
3 X 10 (Units) |
- |
600 |
1 X101(S U) |
5 X 101 (S U) |
- |
| 50 |
5 X 10(Units) |
- |
700 |
1 X101(S U) |
6 X 101 (S U) |
- |
| 70 |
1 X10(Units) |
6 X 10(Units) |
800 |
2 X101(S U) |
6 X 101 (S U) |
- |
| 100 |
5 X 20(Units) |
- |
900 |
2 X101(S U) |
7 X 101 (S U) |
- |
| 150 |
3 X 50 (S U) |
- |
1000 |
2 X 101(SU) |
8 X 101 (S U) |
- |
| Manufacturing range : |
5 pairs to 3600
pairs |
| Conductor size : |
0.4 / 0.5 / 0.63/ 0.9 mm |
| Insulation : |
Solid PE or Foam Skin PE |
| Construction cables / Aerial secondary cables.: |
Armoured, Unarmoured, Aerial
Primary cables / Secondary |
PIJF Cables can also be offered to customer's specifications.
|
| |
| Jointing
Kits |
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^ |
- Jointing Kits ( Fibre Optic Cables)Photograph 3
Fibre Optic Cable accessories Catalogue 2 Photographs
should come this space
| Straight Through joints : |
Fibre Count 6/12 , 24, 36, 48 |
| Branch Joints : |
Fibre Count 6/12 , 24, 36, 48 |
| Fibre optic Splice Closure: |
Suitable for a variety of cable constructions
(eg. Sloted core, loose tube, central tube etc.,)
upto 4 Organiser. Trays can be mounted.
Organiser - trays have a capacity of upto
12 fibres. Hanging trays provide easy access
to all fibre splices. |
- Optical Fibre Termination Box
: Wall Mounting design Splicing
Tool kit Duct Sealing Sleeves >
Jointing Kits (Jelly Filled Telephone Cables)
- Thermoshrink kits suitable for 20, 50, 100,
400, 800, 1200 pair. 0.5 / 0.63 Sq.mm
Photograph 4 Raychem (XAGA 250) Catalogue Photograph
or Raychem (XAGA 550) RTSF Catalogue photograph
- Connector :0.4 to 0.63 Sq.mm Duct Seal
|
| Junction
Boxes |
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- Connection & Disconnection modules
- Back mount frames
- Label holder
- Internal Boxes & mounting Hardwares
- Distribution boxes for upto 1000 pair
- Connection Boxes for upto 1000 pair
- Automatic Distributors for 3200 lines subscriber
side
Automatic Distributors for 2048 lines switching system
side
- Surface mounted Boxes in Grey, Ivory, white.
- Face plates in keyed & unkeyed in white shutter.
- Outdoor distribution cabinets for upto 2400 pair.
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