MV Underground Power Cables Outdoor Energy BS 7835 - 6.35/11kV SWA
Armoured 3-core cable with XLPE insualtion. Rated voltage 6.35/11 KV
STANDARDS
National : BS 7835
DESCRIPTION
Electric cable with copper conductors, semiconductive conductor screen, XLPE insulation, semiconductive insulation screen, copper metallic screen for each core, LSF bedding, galvanized steel wires armour (SWA), LSF outer sheath
Application
suitable for installation in energy networks where for safety reasons Low Smoke and Halogen Free cables are specified. The cable is suitable for installation underground, in ducts or in air
Note: the cable is suitable for rated voltage 6/10 KV according to IEC 60502-2
Cable Data
| Sizes(mm2) |
Insulation Thickness(mm) |
App. Overall Dia.(mm) |
App. Weight(kg/km)(Cu) |
| 3x35 |
3.4 |
51.5 |
4658 |
| 3x50 |
3.4 |
54.2 |
5355 |
| 3x70 |
3.4 |
58.3 |
6311 |
| 3x95 |
3.4 |
62.4 |
7415 |
| 3x120 |
3.4 |
65.9 |
8479 |
| 3x150 |
3.4 |
69.1 |
9678 |
| 3x185 |
3.4 |
73.0 |
11093 |
| 3x240 |
3.4 |
80.1 |
14191 |
| 3x300 |
3.4 |
85.5 |
16457 |
| 3x400 |
3.4 |
93.2 |
20188 |
Note: The single-core armored cables are used for the D.C. system only. If used for the A.C. system, the magnetic isolation should be applied to the steel armor wires of non-magnetical materials that should be used.
3 Operating characteristics
- Rated power-frepuency voltage U0/U: 6.35/11kV.
- Max.admissible operating temperature of the conductor:90ºC.
- Max. short-circurt temperature of conductor shall not exceed 250ºC. (5s maximum duration)
- The ambient temperature under installation should not below 0ºC.
- The bending radius of a single-core cable should not less than 20 times of the cable diameter.
The bending radius of a multi-core cable should not less than 15 times of the cable diameter.
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The description "MV Underground Power Cables Outdoor Energy BS7835 - 6.35/11kV SWA" refers to medium voltage (MV) underground power cables designed for outdoor use and complying with the British Standard BS7835. The cables have a voltage rating of 6.35/11kV and feature a Steel Wire Armor (SWA) construction.
Here's a breakdown of the key components and characteristics:
Voltage Rating: The cables are designed to operate at a medium voltage level of 6.35/11kV. This indicates that they are suitable for power distribution applications requiring voltage levels within this range.
Underground Use: These cables are specifically designed for underground installation. They are suitable for burying directly in the ground or for use in ducts or trenches.
Outdoor Energy: The cables are intended for outdoor environments, where they are exposed to weather conditions like sunlight, rain, and temperature variations. They are constructed to withstand the outdoor elements and provide reliable power transmission.
BS7835 Standard: BS7835 is a British Standard that sets requirements for medium voltage cables used in electricity supply systems. Compliance with this standard ensures that the cables meet specified performance, construction, and testing criteria.
Steel Wire Armor (SWA): The SWA construction refers to a layer of steel wires that provides mechanical protection to the cables. The armor enhances the cables' resistance to physical damage, such as impact, compression, and mechanical stress. It also offers additional protection against rodents and other external hazards.
