FL2XSYRY
Voltage grade of airport lighting cable :
1. The Voltage Grade to be taken into consideration for single-core cable used in series lighting circuits is the
continuous AC working
voltage between core and earth.
A 5 kV FL2XSYRY cable can operate continuously and safely at an AC potential of 5000V to earth.
2. On the contrary, other National Standards define voltage grades differently, which can be misleading when
comparing characteristics
and performances of airport lighting cables. For example:
- VDE 0271, ‘.The German Standard applicable to PVC- Insulated core rates the FLYCY airfield lighting
cables as 3.0/6.0kV or 5.0/10.0 kV. The first figure (U0) represents the working voltage to earth, the second
figure (U) the working voltage of a single-phase, multiple circuit made of two single- core FLYCY cables.
According to correct electrical practice this cable (3.0/6.0kV) is in fact a 3 kV cable. The same applies to the
FLYCY 5.0/10.0 kV which corresponds to a 5kV FL2XSYRY cable.
3. British Standards (BSI) rate the airport lighting cables as 1.9/3.3 kV. This corresponds to a working voltage
to earth of 1.9kV, while 3.3kV may be applied between the cores of a three-phase distribution system made of
3 each single-core airport lighting cables.
Nominal cross section area of conductor |
Conductor Diamater |
Insulation thickness |
Diameter Under Armour |
Armour Wire Diameter |
Sheath thickness |
Overall Diameter |
Weight |
Standard Packing Length |
mm2 |
mm |
mm |
mm |
mm |
mm |
mm |
Kg/Km |
meter |
1x6rm 3kV |
2.9 |
2.0 |
9.8 |
0.9 |
1.8 |
15.2 |
460 |
1000 |
1x6rm 5kV |
2.9 |
2.3 |
11.3 |
0.9 |
1.8 |
16.7 |
520 |
1000 |
1x10rm 5kV |
3.8 |
2.5 |
12.6 |
0.9 |
1.8 |
18.0 |
620 |
1000 |
|