LTFPNWM Flame Retardant SERIES

Heavy Armoured Cable Nylon + LSZH Sheath, Chemical/Corrosive Resistant



  • The cable is specially designed for harsh environments. The multilayer inner sheath HDPE/PA(nylon) withstands aggressive constituents, fluids that might occur on (petro) chemical plants, aliphatic hydrocarbon resistant. The cable which is low smoke, halogen free and flame-retardant, is suitable for installation under and above ground. - Nylon jacket provides anti-termite protection of the cable
    - The steel wire armour provides anti-rodent protection
    - The outer sheath is flame retardant compound to Heat & Oil and UV resistant

Flame Rating

  • IEC 60332-3-22


  • Central Strength Member(CSM): glass fiber reinforced plastic rod(FRP)
  • Tube: thermoplastic material containing up to 12 optical fibres and filled with a suitable water tightness compound.
  • Stranding: The required numbers of elements (tubes or fillers) are SZ stranded around the central strength member.
  • Core Wrapping: water-blocking tape & yarn (dry-core)
  • Inner sheath: HDPE
  • Nylon sheath: Black Nylon Polyamide 12 (PA 12)
  • Outer Armour: Galvanized Steel Wire
  • Outer Sheath: LSZH flame retardant
No. of Flbers   4,8,12,24 32 36,48,72
Design (Elements x Fibre/Tube)   6x4 6x8 6x12
Loose Tube/Filler - ø mm Nom. 2.1 Nom.2.1 Nom. 2.1
CSM/sheath diameter mm Nom. 2.3 Nom. 2.3 Nom. 2.3
Outer sheath thickness mm Nom. 2.0
Cable Diameter mm Nom. 16.4 Nom.16.4 Nom. 16.4
Cable Weight 436 436 436
Max installation tension N 5000
Min. bending radius ( Without Tension) mm 15 x Cable ø
Min. bending radius ( Under Max. Tension)   25 x Cable ø
Main Mechanical and Environmental characteristics  
Test Standard Specified value Acceptance Criteria*  
Max. Tension IEC 60794-1-2-E1 See Configuration
Δ I/I fibre strain ≤ 0.6%,
Δα reversible
Crush IEC 60794 1-2-E3 4000 N/100 mm; reversible
Δα ≤ 0.15dB(SM), 0.3 dB (MM)
after test
Water penetration IEC 60794 1-2-F5C Sample=3m,water column=1m
No water leakages after 24hours
Temperature Range Transportation & Storage -40° C to +70 ° C  
Installation -10° C to + 70° C  
Operation -40° C to +70 ° C  
* Values for single-mode fibres, all optical measurements performed at 1550 nm
* Values for multi-mode fibres, all optical measurements performed at 1300 nm
Ordering Information
LTFPNWM SERIES FO Cable part numbers are made up using the table below.
The part number always starts with the letters LTFPNWM to denote that it is a LTFPNWM SERIES FO Cable.
This is followed by 3 numbers which symbolizes the core quantity and then 2 letters to denote the fibre type.
Cable part number: LTFPNWM008M1

The above example describes an OM1 (62.5um, Black Sheath) LTFPNWM SERIES FO Cable, with 8 cores.


012-12 CORES
016-16 CORES
024-24 CORES
048-48 CORES
096-96 CORES


M1-OM1, 62.5µm
M2-OM2, 50µm
M3-OM3, 50 µm
M4-OM4, 50µm