WELDING CABLES
Application
Indoors or Outdoors in cable ducts, cable trays, conduits or underground locations under mechanical stresses in power and switching stations.
Local distribution systems, Industrial and Commercial units for basic power & lighting purpose.
| Standards | BS 6346, IEC 60502-1 & VDE 0271 |
|---|---|
| Operating Temperature | 70° C |
| Short Circuit Temp | 160° C |
| Working Voltage | 600 / 1000 |
| Volts Test Voltage | 3 KV r m s for 5 minutes |
Conductor
Aluminium / Annealed plain copper solid* / stranded conductor conform to BS 6360 and IEC 60228, Class 2 (Circular / Sector shaped).
Insulation
PVC type Ill as per BS 7655: Section 3.1 and PVC type A as per IEC 60502-1
| Single core | Red. Yellow, Blue, Black, Grey or Natural |
| 2 Core | Red, Black |
| 3 Core | Red, Yellow, Blue |
| 4 Core | Red , Yellow, Blue, Black |
| 5 Core | Red, Yellow, Blue, Black & Grey |
| 6 Core & above | Blue , Yellow and remaining core Grey each layer |
Assembly
Insulated conductors are laid up together, if necessary interstices may be filled with fillers.
Fillers
Non-hygroscopic Poly propylene fillers are included between laid up cores wherever required.
A separator tape of non-hygroscopic poly propylene material is applied over laid up cores wherever necessary.
Bedding
Bedding Extruded PVC compatible with operating temperature.
Armour
For Single Core - Aluminium round wire / flat Strep.
For Multicore - Galvanised Steel round wire / flat wire / tape. .
Outer Sheath
Extruded PVC / Special PVC compound such as Flame Retardant (FR), Flame Retardant Low Smoke (FRLS), Low Smoke Zero Halogen (LSOH) can be used for outer sheath to suit a variety of environment and fire risk conditions. Flamabillity test confirms to IEC 332 & Swidish chimeny. For installation where fire and associated problems such as emission of smoke and toxic fumes offer a serious potential threat, special LSF (Low smoke & fumes) compound can be provided. LSF compound is Halogen free (Flourine, Chlorine, Bromine) when tested as per BS 6425 (Pt 1) & IEC 60754 (Pt 1). The acid gas evolved during combustion is less than 0.5% by weight of material.
Minimum Bending Radius
12 times the cable diameter
Admissible Pulling Force
Aluminium-30/mm