J-Y(ST)Y...LG fire alarm cable

Installation cable in accordance with DIN VDE 0815 with red outer sheath

J-Y(ST)Y...LG fire alarm cable - installation cable according to VDE 0815 with red sheath, specifically for use as a fire alarm cable

Interference signals

Article number Number of pairs and conductor diameter (mm) Outer diameter (mm) Copper index (kg/km) Weight (kg/km)
J-Y(ST)Y...LG fire alarm cable
1708001 1 x 2 x 0.8 6 11 40
1708002 2 x 2 x 0.8 7 21 60
1708004 4 x 2 x 0.8 9 41 100
1708010 10 x 2 x 0.8 13.5 102 220


  • The cable is marked with the phrase "Fire alarm cable” at regular intervals on the sheath. It is therefore used especially for installation in fire alarm systems.
  • Static shield made of aluminium-laminated plastic film with drain wire minimises the interference of high frequency, electromagnetic fields
  • Decoupling of circuits by means of
    twisted-pair (TP) design (crosstalk effects)

Application range

  • This installation cable is used to transmit signals.
  • For fixed installation on and under plaster, in dry and damp rooms
  • If installing outside, this cable should be installed under plaster only

Product features

  • The 2-pair version (2x2x0.8) is twisted into a star quad
  • Flame-retardant according to IEC 60332-1-2

Norm references / approvals

  • Based on DIN VDE 0815Type J-Y(ST)Y...LG


  • Solid bare copper conductor
  • Core insulation made of PVC
  • Cores twisted in pairs,
    pairs twisted together,
    foil wrapping over the cable core,
    static shield made of aluminium-laminated plastic film with copper drain wire
  • Outer sheath made of PVC
    Outer sheath colour: flame red (RAL 3000)


  • ETIM 5.0 Class-ID: EC000829
  • ETIM 5.0 Class-Description: Telecommunication cable

Core identification code

  • according to VDE 0815, see appendix T10

Peak operating voltage

  • (not for power applications)
    300 V


  • (800 Hz): K1: 80% ≤ 300 pF/100m

Conductor cross-section in

  • 0.8 mm: 0.50 mm²

Cable attenuation/attenuation

  • 0.8 mm: 1.1 dB/km

Minimum bending radius

  • Fixed installation:
    10 x outer diameter

Test voltage

  • Core/Core: 800 V
  • Core/Shield: 800 V

Loop resistance

  • max. 73.2 ohm/km

Temperature range

  • Occasional flexing: -5°C to +50°C
  • Fixed installation: -30°C to +70°C

Unless specified otherwise, the shown product values are nominal values. Detailed values (e.g. tolerances) are available upon request.
Copper price basis: EUR 100/100 kg; see catalogue appendix T17 for the application and definition of "Metal price basis" and "Metal index"
Please find our standard lengths at: www.lappkabel.de/en/cable-standardlengths
Packaging: Ring ≤ 30 kg or ≤ 250 m, otherwise drum
Photographs are not to scale and do not represent detailed images of the respective products.