6491B to BS 7211 (New BS EN 50525-3-41)

Application and Description

These cables are designed for fixed wiring purposes in domestic and industrial power/lighting applications. They can be used in trunking or conduit, or may be surface mounted when used for earthing. and they are 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 and which is particularly important where electronic equipment is installed. 6491B is equivalent to harmonized code H07Z-U/ H07Z-R/H07Z-K.

Cable Construction

  • - Bare copper made of solid/strands conductor
  • - Solid to BS 6360 CL-1 or IEC 60228 CL-1(H07Z-U)
  • - Stranding to BS 6360 CL-2 or IEC 60228 CL-2(H07Z-R)
  • - Stranding to BS 6360 CL-5 or IEC 60228 CL-5(H07Z-K)
  • - LSOH thermosetting core insulation type EI5

Core Identification

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

Technical Characteristics

  • - Working voltage: 450/750v
  • - Test voltage: 2500 volts
  • - Minimum bending radius: up to 10 mm^2 - 3xoverall diameter; above 25 mm^2 - 6xoverall diameter
  • - Operating temperature: +0o C to +90o C
  • - Short circuit temperature: +250o C
  • - Insulation resistance: 10 MΩxkm
  • - Halogen free acc. to EN 50267-2-1 / IEC 60754-1
  • - Smoke density acc. to EN 50268-2 / IEC 61034-2
  • - Corrosivity of gases acc. to EN 50267-2-2, IEC 60754-2
  • - Flame retardancy acc. to EN 50265-2-1, IEC 60332-1

Cable Parameter

AWG
(No of Strands/
Strand Diameter)
No. of Cores x
Nominal Cross
Sectional Area
#xmm^2
Nominal
Thickness of
Insulation
mm
Nominal
Overall
Diameter
mm
Nominal
Copper
Weight
kg/km
Nominal
Weight
kg/km
16(solid) 1x1.5 7 2.8 14.4 20
14(solid) 1x2.5 8 3.3 24 30
12(solid) 1x4 8 3.8 38 45
10(solid) 1x6 8 4.3 58 65
8(solid) 1x10 10 5.5 96 105
16(7/24) 1x1.5 0.7 3.0 14.4 21
14(7/22) 1x2.5 0.8 3.6 24 33
12(7/20) 1x4 0.8 4.1 39 49
10(7/18) 1x6 0.8 4.7 58 71
8(7/16) 1x10 1 6 96 114
6(7/14) 1x16 1 6.8 154 172
4(7/12) 1x25 1.2 8.4 240 265
2(7/10) 1x35 1.2 9.3 336 360
1(19/13) 1x50 1.4 10.9 480 487
2/0(19/11) 1x70 1.4 12.6 672 683
3/0(19/10) 1x95 1.6 14.7 912 946
4/0(37/12) 1x120 1.6 16 1152 1174
300MCM(37/11) 1x150 1.8 17.9 1440 1448
350MCM(37/10) 1x185 2.0 20.0 1776 1820
500MCM(61/11) 1x240 2.2 22.7 2304 2371
-(61/10) 1x300 2.4 25.4 2980 3050
-(61/9) 1x400 2.6 28.8 3765 3842
-(61/8) 1x500 2.8 32.8 4725 4900
-(127/10) 1x630 2.8 36.5 6205 6334
16(30/30) 1 x 1.5 7 3.5 14.4 24
14(50/30) 1 x 2.5 8 4 24 35
12(56/28) 1 x 4 8 4.8 38 51
10(84/28) 1 x 6 8 6 58 71
8(80/26) 1 x 10 10 6.7 96 118
6(128/26) 1 x 16 10 8.2 154 180
4(200/26) 1 x 25 12 10.2 240 278
2(280/26) 1 x 35 12 11.5 336 375
1(400/26) 1 x 50 14 13.6 480 560
2/0(356/24) 1 x 70 14 16 672 780
3/0(485/24) 1 x 95 16 18.4 912 952
4/0(614/24) 1 x 120 16 20.3 1152 1200
300 MCM (765/24) 1 x 150 18 22.7 1440 1505
350 MCM (944/24) 1 x 185 20 25.3 1776 1845
500MCM(1225/24) 1 x 240 22 28.3 2304 2400