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Coding of Cables for Information Technology in Copper or Optical Fibre

 

Examples for coding of:

Telecommunication cables

Signalling cables

Fibre optic cables

 

Coding for Copper Cables
A. Cable Type
  A- outdoor cable
  AB- outdoor cable with lightning protection requirements
  AJ- outdoor cable with induction protection requirements
  AD- differential protection cable
  J- installation cable
  S- switchboard cable
  T- distribution cable
B. Cable Construction Elements
  P Ipaper insulation
  Y insulation or sheath or protective covering of Polyvinylchlorid (PVC)
  YV reinforced protective covering or sheath of Polyvinylchlorid (PVC)
  2Y insulation or sheath or protective covering of Polyethylen (PE)
  2YV reinforced protective covering or sheath of Polyethylen (PE)
  02Y insulation of cellular-PE (foamed PE)
  02YS insulation of foam-skin-PE
  3Y inslation of styrofle
  4Y insulation of Polyamid (PA)
  5Y insulation of Polytetrafluorethylen (PTFE)
  6Y insulation of Perfluorethylenprophylen (FEP)
  7Y insulation of Ethylen-Tetrafluorethylen (ETFE)
  H insulation or sheath of halogen free material
  FE cable maintaining insulation in case of fire
  M lead sheath
  MZ lead alloy sheath
  C screen of braided copper wires
  D screen of copper round wires
  A screen of aluminium round wires
  (C) screen of braided copper wires over each pair
  (K) screen of copper tape
  L smooth aluminium sheath
  LD corrugated aluminium sheath
  (L)2Y laminated sheath, aluminium foil with PE-sheath, moisture barrier
  F cable core with petroleum jelly filling
  OF cable core with low capacitance filling compound
  TF cable core with dry, fat free swelling material
  W corrugated steel sheath
  B armouring of steel tape or steel wires
  (SR)2Y armouring with corrugated steel sheath and PE-sheath
  C protective covering of jute and viscous compound
  Q armouring of braided steel wires
  (St) screen of metallic foil or plastic coated metallic foil
  (Z) steel wire braiding over PVC inner sheath
  E compound with embedded plastic tape
  T strain-bearing elements
(Zg)2Y sheath with tension-relief elements of optical fibre
C. Number and Conductor Design
  Number in pairs or quads
  solid conductor in mm
  stranded conductor in mm2
D. Kind of Stranding Elements and Further Construction Elements
  BD unit-type stranding
  LG stranding in layers
  F star quad with phantom circuit in railway cables
  St star quad with phantom circuit acc. to DIN VDE 0816
  St I star quad in trunk cables acc. to DIN VDE 0816
  St III star quad in local cables acc. to DIN VDE 0816
  PiMF pair in metal foil
S signalling cable for railway
  TF carrier frequency star quad
  (H...) maximum value of operating capacity
(M...) maximum operating capacity
  A (...or B or C) reduction factors
  (401) (...or further numbers) reduction factor curve
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Coding for Fibre Optic Cables
A. Core
V tight buffer
H loose tube, non-filled
W loose tube, jelly filled
B multi fibre buffer, non-filled
D multi fibre buffer, jelly filled
G multi mode fibre
E single mode fibre
B. Fibre Types
  E single mode fibre (glass core / galss clad)
G graded index fibre (glass core / glass clad)
S step index fibre (glass core / glass clad)
Q quasi step index fibre (glass core / glass clad)
K step index fibre (glass core / plastic clad)
C. Cable Design
A outdoor cable
I indoor cable
(SZ) metallic strength member in cable core
  S copper element in cable core
F filling of cable core with petroleum jelly
Q longitudinally waterproof cable core by swelling material
(ZN) non-metallic strength member
(L)2Y laminated sheath, aluminium foil with PE-sheath, moisture barrier
T metallic supporting element (steel strand)
B armouring
(SR) armouring with corrugated steel sheath
Y PVC sheath
2Y PE sheath
4Y PA sheath
H sheath of halogen free, flame retardant polymer, FRNC
11Y PUR sheath
LG layer stranding
     
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Example for Description of a Telecommunication Cable

AJ - 02YSTF(L)2YDB2Y  1 x 4 x 1,4 / 7 x 4 x 0,9  STI  rF-class "B"

AJ-

outdoor cable with induction protection

02YS

insulation of foam-skin-PE

TF

cable core with swelling material, dry filling

(L)2Y

laminated sheath, moisture barrier

D

screen of copper round wires

B

steel tape armouring

2Y

protective covering of PE

1 x 4

one quad

1,4

conductor diameter (in mm)

7 x 4

7 quads

0,9

conductor diameter (in mm)

STI

star quad long-distance cable

rF-class "B"

reduction factor class B

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Example for Description of Signalling Cable

AJ - 2Y2YDB2Y  20 x 1 x 1,4 S  (H95)  504

AJ

outdoor cable with induction protection

2Y

insulation of PE

2Y

inner sheath of PE

D

screen of copper round wires

B

steel tape armouring

2Y

protective covering of PE

20 x 1

20 cores

1,4

conductor diameter (in mm)

S

signalling cable

(H95)

maximum value of operating capacity 95 nF/km

504

reduction factor curve 504

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Example for Construction and Type of Optical Fibre Cable

A-DF(ZN)2Y(SR)2Y 6 x 12 E9/125 0,36 F 3,5/0,23 H 18 LG

A-

outdoor cable

D multi fibre loose tube, jelly filled

F longitudinally waterproof

(ZN)2Y non-metallic strength member, inner sheath of PE

(SR)2Y armouring and protection serving of PE

6 x 12 number of buffer cores x number of fibres per buffer

E fibre type, single mode

9/125 core / mode field diameter in µm
0,36 attenuation factor in dB/km
  wave length
B =   850 nm
F F = 1.300/1.310 nm
H = 1550 nm

3,5 dispersion in ps (nm x km)

LG layer stranding
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