Fire resistant, flame retardant halogen-free instrumentation cable. Mud resistant

BFOU(i) 150/250(300)V


NEK TS 606 CodeS3/S7

Operating temperature : 90°C
Operating Voltage : 150/250(300)V


Fixed installation for instrumentation,
communication, control and alarm systems in both
EX (Zone 0, 1 & 2)- and safe areas, emergency
and critical systems where requirement for fire
resistance exists. Meets the mud resistant
requirements in NEK TS 606:2009.

Standards applied

IEC 60092-376 (2003-05) – Design
IEC 60228 class 2 – Conductor
IEC 60092-360 – Insulation
IEC 60092-360 – Sheath
IEC 60332-1-2 – Flame Retardant
IEC 60332-3-22 – Flame Retardant
IEC 60331-1, -2, -21 – Fire Resistant
IEC 60754-1,2 – Halogen Free
IEC 61034-1,2 – Low Smoke


Code Letter
Conductor Tinned annealed stranded circular copper (STCC), IEC 60228 class 2
Insulation R Mica-tape + EP-rubber, IEC 60092-360 (EPR)
Pair / Triple / Quad twisting Color coded cores twisted together. Pairs/Triples are screened by copper backed polyester tape with tinned copper drain wire. Each pair/triple is wrapped with polyester tape to prevent electrical contact with adjacent pairs/triples. Pairs/triples are identified by numbered tape or by numbers printed directly on the insulated conductors.
Lay up / Shielding Individually shielded pairs/triples/quads are laid up in concentric layers and wrapped with a PETP tape.
Inner covering F Flame retardant and halogen-free thermoplastic compound
Tape over inner covering PET tape
Armour/screen O Tinned annealed copper wire braid
Tape over armour/screen PET tape
Outer sheath U Flame retardant, halogen-free and mud resistant thermoset compound, SHF2 (IEC 60092-360)
Marking text Eg. "meter" "year" DRAKA 01 BFOU(i) 250V S3/S7 16 PAIR 0,75 mm2 FLEX - FLAME IEC 60092-376 IEC 60331-1*) or IEC 60331-2*) IEC 60331-21**) IEC 60332-3-22
Manufacturing unit DRAKA 01 = Draka Norsk Kabel,
Outer sheath colour Grey or Blue

*) IEC 60331-1 for cables with an overall diameter exceeding 20 mm and IEC 60331-2 for cables with an overall diameter not exceeding 20 mm**) IEC 60331-21 also at enhanced temperature 1000°C for 180 minutes

Core identification power cables

Pair – Black – Light Blue
Triple – Black – Light Blue – Brown
Quad – Black – Light Blue – Brown – Grey

Range and dimensions


Electrical values instrumentation cables


Ordering information


Installation recommendations

Those indicated with(*) represent round conductor
*We reserve the right to alter this specification without prior notice.