British Standard Industrial Cables
Tri-rated Cable to BS6231

Application and Description

Tri-rated Cable panel wiring is a high temperature, flame retardant cable designed for use in the switch control, relay and instrumentation panels of power switchgear and for purposes such as internal connectors in rectifier equipment, motor starters and controllers. Tri-rated Cable is sometimes referred
to as BS6231 Cable or Panel Wire.

Cable Construction

• - Fine bare copper strands
  - Stranding to IEC 60228 CL-5
  - PVC TI1(for type BK), TI3 (for type CK) core insulation

Core Identification

• Black, Blue, Brown, Red, White, Yellow, Grey, Violet, Pink, Green/Yellow, Other colours are available on request

Technical Characteristics

• - Working voltage: 600/1000v
  - Minimum bending radius: 6xOverall diameter
  - Operating temperature: 0º C to +70º C(for type BK)
  0º C to +90º C(for type CK)
  - Flame retardant: IEC 60332.1
  - Insulation resistance: 20 MΩxkm

Cable Parameter

AWG (No of Strands/ Strand Diameter)	No. of Cores x Nominal Cross Sectional Area #xmm2	Nominal Thickness of Insulation mm	Nominal Overall Diameter mm	Nominal Weight kg/km
20(16/32)	1x0.5	0.80	2.50	12
18(24/32)	1x0.75	0.80	2.70	15
17(32/32)	1x1	0.80	2.95	18
16(30/30)	1x1.5	0.80	3.20	23
14(50/30)	1x2.5	0.80	3.65	34
12(56/28)	1x4	0.80	4.20	48
10(84/28)	1x6	0.80	4.70	67
8(80/26)	1x10	1.14	6.50	119
6(128/26)	1x16	1.52	8.00	187
4(200/26)	1x25	1.52	9.40	291
2(280/26)	1x35	1.52	10.60	406
1(400/26)	1x50	2.02	12.90	580
2/0(356/24)	1x70	2.02	14.60	780
3/0(485/24)	1x95	2.02	16.10	1055
4/0(614/24)	1x120	2.02	17.90	1175
300 MCM (765/24)	1x150	2.41	20.20	1425
350 MCM (944/24)	1x185	2.41	22.85	1735
500MCM(1225/24)	1x240	2.41	24.40	2310

*Cables above 120mm2 in size are referred to as Bi-rated since the CSA standard applies only to sizes up to and including 120mm2