BS 7835 Cable
Armoured cables with thermosetting insulation - 3.8/6.6kV to 19/33kV - with low emission of smoke and corrosive gases when affected by fire. Manufactured in accordance with British Standard BS7835
British Standard BS7835 specifies requirements for single-core and three-core armoured cables with thermosetting insulation - 3.8/6.6kV up to 19/33kV. They are designed to produce low levels of smoke and corrosive gases on exposure to fire compared to the cables specified in British Standard BS6622.
BS7835 cable constructionThis Standard specifies the following cable construction:
|Conductor||Class 2 stranded copper|
|Insulation||Cross-linked Polyethylene (XLPE) Type GP8 or cross-linked Ethylene Propylene Rubber (EPR) Type GP7|
|Insulation screen||Semi-conductive layer of XLPE|
|Screen||Metallic screening layer of copper wire or copper tape|
|Bedding||Low Smoke Zero Halogen (LSZH) compound|
|Armour||Metallic armour of aluminium or aluminium alloy for single-core cables and galvanised steel wire for three-core cables|
|Outersheath||Thermoplastic LSZH oversheath|
BS7835 Cable selectionWe supply a comprehensive range of Medium Voltage (MV) cables, including Low Smoke Zero Halogen (LSZH) thermoplastic oversheathed cables manufactured in accordance with British Standard BS 7835. These cables are designed to have improved fire performance when installed in air. They are also suitable for direct burial installation in free draining soil. It is recommended for the user to seek advice from the supplier for applications requiring installation in any other environment. In particular, these cables are not suitable for use as self-supporting aerial cables, as submarine cable or in water-logged conditions, and in environments where there is a risk of mechanical damage or exposure to excessive heat.
Please contact our technical engineers for technical support with the selection of BS 7835 cables and associated cable accessories.
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