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BS 7917 Shipwiring Instrumentation 658M SW4 Fire Resistant Armoured

BS 7917 ship wiring cables provide fire resistance to IEC 60331, they are designed for use on ships and offshore installations where circuit integrity is vital to maintain services in the event of a fire.

The cables are available in pair and triple configurations for instrumentation wiring. Screening options include individual aluminium foils around each pair or a collective aluminium foil, each screen has its own drain wire for earthing. Mechanical protection is provided by a flexible steel wire braid armour, the SW4 sheathing compound is oil resistant and Low Smoke Halogen Free to avoid the release of toxins and smoke in the event of a fire.

Technical Information

Voltage Rating:150/250V
Conductor Stranding:IEC 60228 Class 2, tinned copper
Temperature Rating:-30°C to +90°C
Bending Radius Static:8 x overall diameter
Oxygen Index of Sheath:>31%
Fire Resistant:IEC 60331-21
Flame Retardant:IEC 60332-1-2,
IEC 60332-3-22
Cat A
Smoke Emission:IEC 61034-1 & 2
BS 7622
Halogen Emission:IEC 60754-1 & 2
BS 6425-1
Oil Resistant:BS 7655 SW4 section 2.6
Manufactured To: BS 7917/BS 6883

Construction

Collectively Screened

Tinned copper wire conductors to IEC 60228 class 2, mica glass tape fire barrier, EPR insulation, cores twisted into pairs or triples, overall foil screen and drain wire, LSHF bedding, galvanised steel wire braid armour, SW4 oil resistant LSHF sheath - grey, blue or black.

Individually Screened

Tinned copper wire conductors to IEC 60228 class 2, mica glass tape fire barrier, EPR insulation, cores twisted into pairs or triples, each pair aluminum foil screened with a drain wire, LSHF bedding, galvanised steel wire braid armour, SW4 oil resistant LSHF sheath – grey, blue or black.

Class 5 conductors to IEC 60228 can be supplied on request.   

Electrical Characteristics

Conductor Size:0.75mm²1.5mm²
Conductor Resistance:<24.5 Ohms/km<12.1 Ohms/km
Insulation Resistance:940 MOhm x km730 MOhm x km
Mutual Capacitance @ 800Hz:  
Collective Screen:80nF/km90nF/km
Individual Screen:90nF/km110nF/km

Core Identification

Pairs -

Triples -

Black & white

Black, white & red 

Each pair is identified by a numbered tape or printed numbers on the cores. 

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The LSHF sheath colours vary depending on the part number. Part numbers ending in: '00' = Black, '01' = Blue & '05' = Grey.

Part No.No. of PairsNo. of Triplesmm²Weight kg/kmO/D mm
Collectively Screened Pairs
658C0702PHM002 0.75379.0015.5
658C0702PHM012 0.75379.0015.5
658C0702PHM052 0.75379.0015.5
658C0703PHM003 0.75460.0017.5
658C0703PHM013 0.75460.0017.5
658C0703PHM053 0.75460.0017.5
658C0707PHM007 0.75741.0021.5
658C0707PHM017 0.75741.0021.5
658C0707PHM057 0.75741.0021.5
658C0712PHM0012 0.751,120.0027.5
658C0712PHM0112 0.751,120.0027.5
658C0712PHM0512 0.751,120.0027.5
658C0719PHM0019 0.751,600.0032.0
658C0719PHM0119 0.751,600.0032.0
658C0719PHM0519 0.751,600.0032.0
658C0720PHM0020 0.751,720.0033.0
658C0720PHM0120 0.751,720.0033.0
658C0720PHM0520 0.751,720.0033.0
658C0727PHM0027 0.752,190.0037.5
658C0727PHM0127 0.752,190.0037.5
658C0727PHM0527 0.752,190.0037.5
658C1502PHM002 1.50477.0017.5
658C1502PHM012 1.50477.0017.5
658C1502PHM052 1.50477.0017.5
658C1503PHM003 1.50570.0019.0
658C1503PHM013 1.50570.0019.0
658C1503PHM053 1.50570.0019.0
658C1505PHM057 1.50920.0024.0
658C1507PHM007 1.50920.0024.0
658C1507PHM017 1.50920.0024.0
658C1507PHM057 1.50920.0024.0
658C1512PHM0012 1.501,560.0031.5
658C1512PHM0112 1.501,560.0031.5
658C1512PHM0512 1.501,560.0031.5
658C1520PHM0020 1.502,260.0037.5
658C1520PHM0120 1.502,260.0037.5
658C1520PHM0520 1.502,260.0037.5
658C1527PHM0027 1.502,820.0042.0
658C1527PHM0127 1.502,820.0042.0
658C1527PHM0527 1.502,820.0042.0
658C2502PHM052 2.50210.0020.5
Collectively Screened Triples
658C0703THM00 30.75550.0019.0
658C0703THM01 30.75550.0019.0
658C0703THM05 30.75550.0019.0
658C0707THM00 70.75930.0024.5
658C0707THM01 70.75930.0024.5
658C0707THM05 70.75930.0024.5
658C0712THM00 120.751,450.0031.5
658C0712THM01 120.751,450.0031.5
658C0712THM05 120.751,450.0031.5
658C1503THM00 31.50515.0018.0
658C1503THM01 31.50515.0018.0
658C1503THM05 31.50515.0018.0
658C1507THM00 71.501,010.0025.0
658C1507THM01 71.501,010.0025.0
658C1507THM05 71.501,010.0025.0
658C1512THM00 121.501,560.0029.0
658C1512THM01 121.501,560.0029.0
658C1512THM05 121.501,560.0029.0
Individually Screened Pairs
658I0701PHM001 0.75260.0012.0
658I0701PHM011 0.75260.0012.0
658I0701PHM051 0.75260.0012.0
658I0702PHM002 0.75420.0017.0
658I0702PHM012 0.75420.0017.0
658I0702PHM052 0.75420.0017.0
658I0703PHM003 0.75480.0017.5
658I0703PHM013 0.75480.0017.5
658I0703PHM053 0.75480.0017.5
658I0707PHM007 0.75795.0022.0
658I0707PHM017 0.75795.0022.0
658I0707PHM057 0.75795.0022.0
658I0712PHM0012 0.751,225.0028.5
658I0712PHM0112 0.751,225.0028.5
658I0712PHM0512 0.751,225.0028.5
658I0720PHM0020 0.752,050.0036.5
658I0720PHM0120 0.752,050.0036.5
658I0720PHM0520 0.752,050.0036.5
658I0727PHM0027 0.752,410.0041.0
658I0727PHM0127 0.752,410.0041.0
658I0727PHM0527 0.752,410.0041.0
658I1501PHM001 1.50145.0017.5
658I1502PHM002 1.50254.0014.3
658I1502PHM052 1.50254.0014.3
658I1503PHM003 1.50650.0021.0
658I1503PHM013 1.50650.0021.0
658I1503PHM053 1.50650.0021.0
658I1505P00HM     
658I1505P05HM     
658I1507PHM007 1.501,030.0025.0
658I1507PHM017 1.501,030.0025.0
658I1507PHM057 1.501,030.0025.0
658I1512PHM0012 1.501,650.0032.0
658I1512PHM0112 1.501,650.0032.0
658I1512PHM0512 1.501,650.0032.0
658I1520PHM0020 1.502,690.0041.0
658I1520PHM0120 1.502,690.0041.0
658I1520PHM0520 1.502,690.0041.0
Individually Screened Triples
658I0701THM00 10.75280.0012.5
658I0701THM01 10.75280.0012.5
658I0701THM05 10.75280.0012.5
658I0703THM00 30.75590.0019.0
658I0703THM01 30.75590.0019.0
658I0703THM05 30.75590.0019.0
658I0707THM00 70.75990.0024.5
658I0707THM01 70.75990.0024.5
658I0707THM05 70.75990.0024.5
658I0712THM00 120.751,650.0032.5
658I0712THM01 120.751,650.0032.5
658I0712THM05 120.751,650.0032.5
658I1501THM00 11.50330.0014.0
658I1501THM01 11.50330.0014.0
658I1501THM05 11.50330.0014.0
658I1503THM00 31.50850.0019.0
658I1503THM01 31.50850.0019.0
658I1503THM05 31.50850.0019.0
658I1507THM00 71.501,180.0025.0
658I1507THM01 71.501,180.0025.0
658I1507THM05 71.501,180.0025.0
658I1512THM00 121.501,740.0038.0
658I1512THM01 121.501,740.0038.0
658I1512THM05 121.501,740.0038.0

Other pair and triple configurations available on request.