Construction goods

BS 7211 LSOH Sheathed Cables with single-core/multi-core

Application and Description

These cables are designed for the internal wiring of switchboards and distributor boards with an alternating nominal voltage up to 1000 Volts or a direct voltage up to 750 volts. Generally install in or ducts and internal wiring of appliances with maximum operating temperature of 90º C, and generally in areas (such as public and government buildings) where smoke and toxic fumes may cause a threat to life and equipment. The cables produce no corrosive gasses when burnt which is particularly important where electronic equipment is installed.

Cable Construction

  • Solid bare copper
  • single wire to IEC 60228 Cl-1
  • Cross-link polyolefin EI5 core insulation
  • LSOH - low smoke, zero halogen
BS 7211 Cables

Insulation Colour

Green/Yellow, Black, Blue, Brown, Red, White, Yellow, Grey, Violet

Technical Characteristics

Working voltage 300/500v (H05Z-U), 450/750v (H07Z-U)
Test voltage 2000 / 2500 volts
Flexing bending radius 15 x Ø
Static bending radius 10 x Ø
Flexing temperature +5 ºC to +90 ºC
Short circuit temperature +250 ºC
Insulation resistance 10 MΩ x km
Flame retardant IEC 60332.1
Smoke density acc. to EN 50268 / IEC 61034
Corrosiveness of combustion gases acc. to EN 50267-2-2, IEC 60754-2
Flame test Flame-retardant acc. to EN 50265-2-1, IEC 60332.1

Cable Parameter

AWG No. of Cores x Nominal Cross Sectional Area Nominal Thickness of Insulation Nominal Overall Diameter Nominal Copper Weight Nominal Weight Minimum insulation resistance at 90 °C
# x mm² mm mm kg/km kg/km MΩ·km
H05Z-U
20 1 x 0.5 0.6 1.9-2.4 4.8 8 0.015
18 1 x 0.75 0.6 2.1-2.6 7.2 12 0.012
17 1 x 1 0.6 2.2-2.8 9.6 14 0.011
H07Z-U
16 1 x 1.5 0.7 2.6-3.3 14.4 20 0.011
14 1 x 2.5 0.8 3.2-4.0 24 30 0.010
12 1 x 4 0.8 3.6-4.6 38 45 0.0085
10 1 x 6 0.8 4.1-5.2 58 65 0.0070
8 1 x 10 1.0 5.3-6.6 96 105 0.0070

Location : 1/F., CMA Building, 64-66 Connaught Road Central,Hong Kong, 852-21161041 1/F., CMA Building, 64-66 Connaught Road Central, Hong Kong,
Contact : niki fu, +13 1 56 11 02 51

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BS 7211 LSOH Sheathed Cables with single-core/multi-core

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