BS 7211 Cables

6241B/6242B/ 6243B, LSOH Flat Wiring Cables with circuit protective conductor

These cables are suitable for fixed installation particularly for situations in which low emission smoke and

domestic wiring cable for the surface wiring of sockets and lighting where fire, smoke emission and toxic fumes

create a potential threat to life and equipment. Can be installed in fixed installations in dry or damp premises on

walls, boards or trays, in channels or embedded in plaster. Suitable for laying in conduit or trunking where

mechanical protection is required

Fine bare copper strands

Strands to IEC 60228 Cl-1 or 2

Thermosetting core insulation type EI5 or GP 8

The core or cores shall be laid parallel with the uninsulated circuit protective conductor

For twin cores, the protective conductor centrally placed between cores in same plane

For 3 cores, the protective conductor centrally placed between black and grey cores in same plane

LSOH sheath, type LTS 2

6241B/6242B/ 6243B, LSOH Flat Wiring Cables with circuit protective conductor

Single core: brown or blue Twin: brown and blue, or, for 2 × 1.0 and 2 × 1.5 cables, brown and brown 3-core: brown, black (centre core) and grey

Working voltage: 300/500v

Test voltage: 2000 volts

Flexing bending radius: 15 x Ø

Static bending radius: 10 x Ø

Flexing temperature: +5º C to +90º C

Short circuit temperature: +250º C

Flame retardant: IEC 60332.1

Insulation resistance: 10 MΩ x km

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

6241B/6242B/ 6243B, LSOH Flat Wiring Cables with circuit protective conductor

AWG	No. of Cores x Nominal Cross Sectional Area	Nominal thickness of insulation	Nominal thickness of sheath	Nominal overall dimensions		Circuit protectiveconductor AWG	Nominal Weight	Minimum insulation resistance at 90 °C
	No. of Cores x Nominal Cross Sectional Area	Nominal thickness of insulation	Nominal thickness of sheath	lower limit	upperlimit		Nominal Weight	Minimum insulation resistance at 90 °C
	# x mm²	mm	mm	mm	mm	kg/km	MΩ·km
6242B
17	2 × 1.0	0.7	0.9	4.1 × 7.6	5.0 × 9.1	17	68	0.011
17(7/26)	2 × 1.0	0.7	0.9	4.2 × 7.8	5.1 × 9.4	17	73	0.011
16	2 × 1.5	0.7	0.9	4.4 × 8.1	5.3 × 9.7	17	85	0.011
16(7/24)	2 × 1.5	0.7	0.9	4.5 × 8.3	5.4 × 10.0	17	90	0.011
14	2 × 2.5	0.7	1.0	4.9 × 9.3	6.0 × 11.2	16	120	0.0092
14(7/22)	2 × 2.5	0.7	1.0	5.0 × 9.5	6.1 × 11.4	16	125	0.0084
12(7/20)	2 × 4	0.7	1.0	5.5 × 10.4	6.7 × 12.6	16	175	0.0070
10(7/18)	2 × 6	0.7	1.1	6.2 × 12.0	7.5 × 14.6	14	240	0.0059
8(7/16)	2 × 10	0.7	1.2	7.3 × 14.5	8.8 × 17.6	12(7/20)	390	0.0047
6(7/14)	2 × 16	0.7	1.3	8.4 × 17.0	10.1 × 20.5	10(7/18)	560	0.0039
6243B
17	3 × 1.0	0.7	0.9	4.1 × 10.0	5.1 × 12.1	17	91	0.011
16	3 × 1.5	0.7	0.9	4.4 × 10.7	5.3 × 12.9	17	115	0.011
14	3 × 2.5	0.7	1.0	4.9 × 12.0	6.0 × 14.6	17	170	0.0092
12(7/20)	3 × 4	0.7	1.0	5.5 × 14.0	6.7 × 16.9	16	196	0.0070
10(7/18)	3 × 6	0.7	1.1	6.2 × 16.2	7.5 × 19.5	14	291	0.0059
8(7/16)	3 × 10	0.7	1.2	7.3 × 19.5	8.8 × 23.6	12(7/20)	440	0.0047
6(7/14)	3 × 16	0.7	1.3	8.4 × 22.8	10.1 × 27.6	10(7/18)	670	0.0039