BS5308 Cable Part 1 Type 2 MG-XLPE-OS-SWA-LSOH
Applications
The armoured fire resistant versions (Part 1 Type 2) are typically used in chemical and process industries where there is danger of fire. The galvanised steel wire armour provides excellent protection.
Construction
| Conductor |
Annealed or tinned copper, Class 2 |
| Insulation |
Mica glass tape, XLPE (Cross Linked Polyethylene),or PE (optional) |
| Pairing |
Two insulated conductors uniformly twisted together with a lay not exceeding 100mm |
| Colour code |
See technical information |
| Binder tape |
PETP transparent tape |
| Collective screen |
Aluminium/polyester tape is applied over the laid up pairs metallic side down in contact with tinned copper drain wire, 0.5mm^2 |
| Inner Sheath |
LSOH(Low Smoke Zero Halogen) sheath |
| Amour |
Galvanized steel wire armour |
| Outer sheath |
LSOH(Low Smoke Zero Halogen) sheath Flame retardant to IEC60332-3-22 Fire resistant to IEC60331 Halogen free to IEC60754-1 Low smoke emission to IEC61034-1-2 |
| Sheath colour |
Black or blue |
Mechanical and Electrical Properties
| Operating temperature |
-20C up to + 90C( fixed installation) |
| |
0C to +50C(during operation ) |
| Minimum bending radius |
6 x overall diameter |
| Conductor Area Size |
mm^2 |
0.5 |
0.75 |
1.0 |
1.5 |
| Conductor Stranding |
No. x mm |
7 x 0.3 |
7 x 0.37 |
7 x 0.44 |
7 x 0.53 |
| Conductor resistance max |
ohm/km |
36 |
24.5 |
18.1 |
12.1 |
| Insulation resistance min |
Gohm/km |
5 |
5 |
5 |
5 |
| Capacitance unbalance at 1 kHz(pair to pair screen) |
pF/250m |
250 |
| Max. Mutual Capacitance @ 1 kHz forNon OS or OS cables (except one-pair and two-pairs) |
pF/m |
115 |
115 |
115 |
115 |
| Max. Mutual Capacitance @ 1 kHz IS/OS cables (include 1 pair and 2 pair) |
pF/m |
75 |
75 |
75 |
75 |
| Max. L/R Ratio for adjacent cores(Inductance/ Resistance) |
μH/ohm |
25 |
25 |
25 |
40 |
| Test voltage |
Core to core |
V |
1000 |
1000 |
1000 |
1000 |
| |
Core to screen |
V |
1000 |
1000 |
1000 |
1000 |
| Rated voltage max |
V |
300/500 |
300/500 |
300/500 |
300/500 |
Parameter
| No.of Pairs |
No.and Dia. of Wires |
Nominal Conductor Cross-Sectional Area |
Nominal Thickness of Insulation |
Nominal Thickness of bedding |
Nominal Dia. over Bedding |
Nominal Thickness of Armour |
Nominal Thickness of Sheath |
Nominal Dia. of Cable |
Approx. Weight |
| no./mm |
mm^2 |
mm |
mm |
mm |
mm |
mm |
mm |
kg/km |
| 1 |
7/0.44 |
1 |
0.6 |
0.8 |
7.0 |
0.9 |
1.4 |
11.6 |
340 |
| 2 |
7/0.44 |
1 |
0.6 |
0.8 |
8.4 |
0.9 |
1.4 |
13.0 |
350 |
| 5 |
7/0.44 |
1 |
0.6 |
0.8 |
12.3 |
0.9 |
1.4 |
16.9 |
740 |
| 10 |
7/0.44 |
1 |
0.6 |
0.8 |
16.5 |
0.9 |
1.4 |
21.1 |
1150 |
| 20 |
7/0.44 |
1 |
0.6 |
0.8 |
21.4 |
0.9 |
1.4 |
26.0 |
1840 |
| 1 |
7/0.53 |
1.5 |
0.6 |
0.8 |
7.5 |
0.9 |
1.4 |
11.9 |
320 |
| 2 |
7/0.53 |
1.5 |
0.6 |
0.8 |
9.1 |
0.9 |
1.4 |
13.7 |
410 |
| 5 |
7/0.53 |
1.5 |
0.6 |
0.8 |
14.8 |
0.9 |
1.4 |
21.1 |
910 |
