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BS 7917 Shipwiring Instrumentation 657M SW4 Fire Resistant Unarmoured

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. Instrumentation types are available with collective or individual screening through the use of aluminium tapes with drain wires for earthing.

The mica glass tape fire barrier provide circuit integrity whilst the oil resistant SW4 LSHF thermoset sheath reduces smoke and toxins during 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/UKOOA

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, 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, 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
657C0702PHM002 0.75180.0012.5
657C0702PHM012 0.75180.0012.5
657C0702PHM052 0.75180.0012.5
657C0703PHM003 0.75230.0014.0
657C0703PHM013 0.75230.0014.0
657C0703PHM053 0.75230.0014.0
657C0707PHM007 0.75410.0019.0
657C0707PHM017 0.75410.0019.0
657C0707PHM0512 0.75620.0024.5
657C0719PHM0020 0.75990.0030.0
657C0719PHM0119 0.75900.0028.5
657C0719PHM0519 0.75900.0028.5
657C0727PHM0027 0.751,290.0033.0
657C0727PHM0127 0.751,290.0033.0
657C0727PHM0527 0.751,290.0033.0
657C1502PHM002 1.50271.0014.0
657C1502PHM012 1.50271.0014.0
657C1502PHM052 1.50271.0014.0
657C1503PHM003 1.50410.0016.5
657C1503PHM013 1.50410.0016.5
657C1503PHM053 1.50410.0016.5
657C1507PHM007 1.50680.0021.0
657C1507PHM017 1.50680.0021.0
657C1507PHM057 1.50680.0021.0
657C1512PHM0012 1.501,050.0027.5
657C1512PHM0112 1.501,050.0027.5
657C1512PHM0512 1.501,050.0027.5
657C1520PHM0020 1.501,480.0031.5
657C1520PHM0120 1.501,480.0031.5
657C1520PHM0520 1.501,480.0031.5
657C1527PHM0027 1.501,860.0033.0
657C1527PHM0127 1.501,860.0033.0
657C1527PHM0527 1.501,860.0033.0
Collectively Screened Triples
657C0703THM00 30.75280.0016.0
657C0703THM01 30.75280.0016.0
657C0703THM05 30.75280.0016.0
657C0707THM00 70.75530.0022.0
657C0707THM01 70.75530.0022.0
657C0707THM05 70.75530.0022.0
657C0712THM00 120.75820.0026.5
657C0712THM01 120.75820.0026.5
657C0712THM05 120.75820.0026.5
657C1503THM00 31.50375.0016.5
657C1503THM01 31.50375.0016.5
657C1503THM05 31.50375.0016.5
657C1507THM00 71.50815.0024.8
657C1507THM01 71.50815.0024.8
657C1507THM05 71.50815.0024.8
657C1512THM00 121.501,300.0030.0
657C1512THM01 121.501,300.0030.0
657C1512THM05 121.501,300.0030.0
Individually Screened Pairs
657I0701PHM001 0.75120.009.5
657I0701PHM011 0.75120.009.5
657I0701PHM051 0.75120.009.5
657I0702PHM002 0.75165.0012.0
657I0702PHM012 0.75165.0012.0
657I0702PHM052 0.75165.0012.0
657I0703PHM003 0.75280.0014.0
657I0703PHM013 0.75280.0014.0
657I0703PHM053 0.75280.0014.0
657I0707PHM007 0.75510.0019.5
657I0707PHM017 0.75510.0019.5
657I0707PHM057 0.75510.0019.5
657I0712PHM0012 0.75850.0023.5
657I0712PHM0112 0.75850.0023.5
657I0712PHM0512 0.75850.0023.5
657I0720PHM0020 0.751,300.0029.0
657I0720PHM0120 0.751,300.0029.0
657I0720PHM0520 0.751,300.0029.0
657I0727PHM0027 0.751,710.0033.0
657I0727PHM0127 0.751,710.0033.0
657I0727PHM0527 0.751,710.0033.0
657I1503PHM003 1.50350.0016.5
657I1503PHM013 1.50350.0016.5
657I1503PHM053 1.50350.0016.5
657I1507PHM007 1.50760.0023.0
657I1507PHM017 1.50760.0023.0
657I1507PHM057 1.50760.0023.0
657I1512PHM0012 1.501,210.0029.0
657I1512PHM0112 1.501,210.0029.0
657I1512PHM0512 1.501,210.0029.0
657I1520PHM0020 1.501,990.0035.5
657I1520PHM0120 1.501,990.0035.5
657I1520PHM0520 1.501,990.0035.5
658I1501PHM011 1.50300.0013.0
658I1501PHM051 1.50145.0017.5
658I1502PHM012 1.50511.0018.0
Individually Screened Triples
657I0701THM00 10.75135.0010.0
657I0701THM01 10.75135.0010.0
657I0701THM05 10.75135.0010.0
657I0703THM00 30.75325.0016.5
657I0703THM01 30.75325.0016.5
657I0703THM05 30.75325.0016.5
657I0707THM00 70.75595.0021.0
657I0707THM01 70.75595.0021.0
657I0707THM05 70.75595.0021.0
657I0712THM00 120.75990.0026.0
657I0712THM01 120.75990.0026.0
657I0712THM05 120.75990.0026.0
657I1501THM00 11.50187.0011.0
657I1501THM01 11.50187.0011.0
657I1501THM05 11.50187.0011.0
657I1503THM00 31.50450.0018.5
657I1503THM01 31.50450.0018.5
657I1503THM05 31.50450.0018.5
657I1507THM00 71.50960.0026.0
657I1507THM01 71.50960.0026.0
657I1507THM05 71.50960.0026.0
657I1512THM00 121.501,610.0030.5
657I1512THM01 121.501,610.0030.5
657I1512THM05 121.501,610.0030.5

Other pair and triple configurations available on request.