Shipwiring/Offshore Screened Instrumentation Cables to BS7917
(Ref. 658M SW4 Instrumentation)

Manufactured in both pairs and triples these 150/250V fire resistant instrumentation cables provide collective or individual screening through the use of metallic foils and drain wires. Offering good flexibility for installation in confined spaces or where difficult routing is necessary, the galvanised steel wire braid provides mechanical protection. Using Mica tapes and SW4 Low Smoke Halogen Free compounds, circuit integrity and low smoke emissions are achieved to maintain emergency circuits and smoke free exit routes.
      

Cable Construction -
Individually screened

Tinned copper wire conductors to BS 6360, class 2 or class 5, Mica glass tape, EPR insulation, cores twisted into pairs or triples, each pair/triple foil screened with a tinned copper drain wire, LSHF inner sheath, galvanised steel wire braid, SW4 LSHF outer sheath - blue or grey.

Cable Construction -
Collectively screened

Tinned copper wire conductors to BS 6360, class 2 or class 5, Mica glass tape, EPR insulation, cores twisted into pairs or triples, overall foil screen and a tinned copper drain wire, LSHF inner sheath, galvanised steel wire braid, SW4 LSHF outer sheath - blue or grey.

Core Identification

Pairs : Each pair black, white and numbered
Triples : Each triple black, white, red and numbered
(Alternative colour codes are available)

Technical Information

Voltage rating 150/250V
Conductors Tinned, BS6360 class 2 or class 5
Temperature rating +90°C maximum conductor temperature
Static temperature rating -30°C to +90°C
Bending radius (static) 8 x cable O/D
Flame retardant IEC60332 part 3A, BS4066 part 3A
Fire resistant IEC60331

Technical Data - CMA Ref 658M SW4 Instrumentation to BS7917
Part No.
No. of
Pairs
Nominal Conductor
Cross-Sectional
Area mm²
Diameter over
inner sheath
min-max mm
Diameter over
outer sheath
min-max mm

 Pairs collective
 658C0703PxxHM   3  0.75  14.0 - 16.0  18.1 - 20.5
 658C0707PxxHM   7  0.75  18.6 - 20.7  22.9 - 25.8
 658C0712PxxHM   12  0.75  24.4 - 27.0  29.1 - 32.7
 658C0720PxxHM   20  0.75  30.8 - 34.0  36.8 - 40.7
 658C0727PxxHM   27  0.75  35.0 - 38.4  41.4 - 45.9
 658C0737PxxHM   37  0.75  38.8 - 42.6  45.4 - 50.1
          
 658C1003PxxHM   3  1  14.8 - 16.8  18.9 - 21.3
 658C1007PxxHM   7  1  19.6 - 22.0  24.1 - 27.1
 658C1012PxxHM   12  1  25.8 - 28.5  30.7 - 34.4
 658C1020PxxHM   20  1  32.6 - 35.8  38.8 - 43.2
 658C1027PxxHM   27  1  37.3 - 40.8  43.7 - 48.3
 658C1037PxxHM   37  1  41.3 - 45.2  48.1 - 53.3

 Pairs individual
 658I0701PxxHM   1  0.75  8.1 - 9.8  11.9 - 13.7
 658I0703PxxHM   3  0.75  14.0 - 16.0  18.1 - 20.5
 658I0707PxxHM   7  0.75  19.0 - 21.1  23.5 - 26.4
 658I0712PxxHM   12  0.75  23.8 - 26.4  28.7 - 31.9
 658I0720PxxHM   20  0.75  30.4 - 33.5  36.5 - 40.5
 658I0727PxxHM   27  0.75  34.6 - 37.9  41.2 - 45.7
 658I0737PxxHM   37  0.75  40.5 - 44.3  47.4 - 52.2
          
 658I1001PxxHM   1  1  8.5 - 10.3  12.3 - 14.2
 658I1003PxxHM   3  1  15.0 - 17.0  19.1 - 21.5
 658I1007PxxHM   7  1  20.0 - 22.5  24.5 - 27.6
 658I1012PxxHM   12  1  25.4 - 28.0  31.2 - 34.9
 658I1020PxxHM   20  1  32.1 - 35.3  38.5 - 42.9
 658I1027PxxHM   27  1  36.8 - 40.2  43.6 - 48.2
 658I1037PxxHM   37  1  43.0 - 47.0  50.2 - 55.5
Part No.
No. of
Triples
Nominal Conductor
Cross-Sectional
Area mm²
Diameter over
inner sheath
min-max mm
Diameter over
outer sheath
min-max mm

 Triples collective
 658C0703TxxHM   3   0.75   15.0 - 17.0   19.1 - 21.5 
 658C0707TxxHM   7   0.75   20.5 - 23.0   25.1 - 28.1 
 658C0712TxxHM   12   0.75   25.6 - 28.3   31.4 - 35.1 
              
 658C1003TxxHM   3   1   15.8 - 17.8   20.1 - 22.9 
 658C1007TxxHM   7   1   21.9 - 24.4   26.6 - 29.7 
 658C1012TxxHM   12   1   27.1 - 29.8   33.1 - 36.9 

 Triples individual
 658I0701TxxHM   1   0.75   8.1 - 9.8   11.9 - 13.7 
 658I0703TxxHM   3   0.75   15.0 - 17.0   19.3 - 22.1 
 658I0707TxxHM   7   0.75   20.8 - 23.3   25.5 - 28.6 
 658I0712TxxHM   12   0.75   25.8 - 28.5   31.8 - 35.6 
              
 658I1001TxxHM   1   1   8.7 - 10.5   12.5 - 14.4 
 658I1003TxxHM   3   1   15.8 - 17.9   20.1 - 23.0 
 658I1007TxxHM   7   1   22.0 - 24.5   26.7 - 29.8 
 658I1012TxxHM   12   1   27.5 - 30.2   33.5 - 37.3 
"xx" TO SHOW THE COLOUR PLEASE REPLACE "xx" WITH
 - 05 FOR GREY
 - 01 FOR BLUE

At FSC we refer to LSHF as Low Smoke Halogen Free

This term is interchangeable with LSZH (Low Smoke Zero Halogen), LSOH (Low Smoke Zero Halogen), OHLS (Zero Halogen Low Smoke) and FRNC (Flame Retardant Non-Corrosive). Beware of the terms LSF (Low Smoke and Fume) or RP (Reduced Propogation), when relating to signal or control cables will normally be modified PVC and produce 'Loads of Smoke and Fume'!
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