1. Home
  2. Instrumentation
  3. BS5308
  4. BS 5308 Part 1 Type 1 Unarmoured PVC Instrumentation

BS 5308 Part 1 Type 1 Unarmoured PVC Instrumentation

Extensively used for process control and signalling within the petrochemical industry, BS 5308 is also used in other industrial and commercial applications. Available with collective aluminium tape screening (CAT) or individual and collective aluminium tape screens (ICAT) to prevent electrical interference and crosstalk. These cables are suitable for use on cables trays and fixed installation where risk of mechanical damage is minimal.

Technical Information

Voltage Rating:

Temperature Rating:

Conductor Stranding:

L/R Ratio:

0.5mm² & 0.75mm²:


Flame Retardant:

Manufactured Generally To:


+65°C (minimum 0°C for installation)

IEC 60228 Class 1, 2 or 5 plain copper conductors

25 µH/Ohm

40 µH/Ohm

IEC 60332-1-2

BS 5308 Part 1


Type: CAT – Collective Aluminium Tape Screen

Plain annealed copper wire conductors to IEC 60228, class 1, 2 or 5, PE insulation, laid up as cores or twisted into pairs or triples, overall aluminium/polyester foil screen and 0.5mm² tinned copper drain wire, RP-PVC sheath – black or blue.

Type: ICAT – Individual & Collective Aluminium Tape Screen

Plain annealed copper wire conductors to IEC 60228, class 1, 2 or 5, PE insulation, cores twisted into pairs or triples, each pair aluminium/polyester foil screen and 0.5mm² tinned copper drain wire, units laid up, collective aluminium/polyester foil screen and 0.5mm² tinned copper drain wire, RP-PVC sheath – black or blue. 

Pair Identification:

CAT: Cables up to 50 pair are colour coded in accordance with BS 5308 part 1, appendix A. Two pair cables are twisted as a quad and coloured black, blue, green, brown.

Each pair black, blue and numbered.  

Hover Over Image to Enlarge
Print this page

0.6/1kV versions can be made to order.

RP-PVC is a reduced propagation version of PVC producing no more than 15% HCl emissions if burnt. It is not Low Smoke Halogen Free.

Part No.Pairs x Size mm²Conductor Stranding mmScreen TypeColourWeight kg/kmO/D mmCap. pF/mConductor Resistance Ohms/Km
Collectively Screened Pairs
5311O050101 x 2 x 0.516/0.20CATBLACK54.006.811539.70
5311O050111 x 2 x 0.516/0.20CATBLUE54.006.811539.70
5311O050202 x 2 x 0.516/0.20CATBLACK75.007.711539.70
5311O050212 x 2 x 0.516/0.20CATBLUE75.007.711539.70
5311O050505 x 2 x 0.516/0.20CATBLACK187.0012.97539.70
5311O050515 x 2 x 0.516/0.20CATBLUE187.0012.97539.70
5311O0510010 x 2 x 0.516/0.20CATBLACK310.0017.07539.70
5311O0510110 x 2 x 0.516/0.20CATBLUE310.0017.07539.70
5311O0520020 x 2 x 0.516/0.20CATBLACK527.0022.17539.70
5311O0520120 x 2 x 0.516/0.20CATBLUE527.0022.17539.70
5311O070101 x 2 x 0.7524/0.20CATBLACK73.007.011526.50
5311O070111 x 2 x 0.7524/0.20CATBLUE73.007.011526.50
5311O070202 x 2 x 0.7524/0.20CATBLACK105.008.011526.50
5311O070212 x 2 x 0.7524/0.20CATBLUE105.008.011526.50
5311O070505 x 2 x 0.7524/0.20CATBLACK255.0014.07526.50
5311O070515 x 2 x 0.7524/0.20CATBLUE255.0014.07526.50
5311O0710010 x 2 x 0.7524/0.20CATBLACK430.0018.47526.50
5311O0710110 x 2 x 0.7524/0.20CATBLUE430.0018.47526.50
5311O0720020 x 2 x 0.7524/0.20CATBLACK740.0024.27526.50
5311O0720120 x 2 x 0.7524/0.20CATBLUE740.0024.27526.50
5311O150101 x 2 x 1.57/0.53CATBLACK84.007.812012.30
5311O150111 x 2 x 1.57/0.53CATBLUE84.007.812012.30
5311O150202 x 2 x 1.57/0.53CATBLACK129.009.112012.30
5311O150212 x 2 x 1.57/0.53CATBLUE129.009.112012.30
5311O150505 x 2 x 1.57/0.53CATBLACK310.0015.58512.30
5311O150515 x 2 x 1.57/0.53CATBLUE310.0015.58512.30
5311O1510010 x 2 x 1.57/0.53CATBLACK570.0020.38512.30
5311O1510110 x 2 x 1.57/0.53CATBLUE570.0020.38512.30
5311O1520020 x 2 x 1.57/0.53CATBLACK1,043.0026.98512.30
5311O1520120 x 2 x 1.57/0.53CATBLUE1,043.0026.98512.30
Individually & Collectively Screened Pairs
5311I050202 x 2 x 0.516/0.20ICATBLACK130.0011.711539.70
5311I050212 x 2 x 0.516/0.20ICATBLUE130.0011.711539.70
5311I050505 x 2 x 0.516/0.20ICATBLACK217.0014.311539.70
5311I050515 x 2 x 0.516/0.20ICATBLUE217.0014.311539.70
5311I0510010 x 2 x 0.516/0.20ICATBLACK403.0019.611539.70
5311I0510110 x 2 x 0.516/0.20ICATBLUE403.0019.611539.70
5311I0520020 x 2 x 0.516/0.20ICATBLACK667.0025.411539.70
5311I0520120 x 2 x 0.516/0.20ICATBLUE667.0025.411539.70
5311I070202 x 2 x 0.7524/0.20ICATBLACK190.0012.511526.50
5311I070212 x 2 x 0.7524/0.20ICATBLUE190.0012.511526.50
5311I070505 x 2 x 0.7524/0.20ICATBLACK300.0016.011526.50
5311I070515 x 2 x 0.7524/0.20ICATBLUE300.0016.011526.50
5311I0710010 x 2 x 0.7524/0.20ICATBLACK530.0022.311526.50
5311I0710110 x 2 x 0.7524/0.20ICATBLUE530.0022.311526.50
5311I0720020 x 2 x 0.7524/0.20ICATBLACK930.0029.211526.50
5311I0720120 x 2 x 0.7524/0.20ICATBLUE930.0029.211526.50
5311I150202 x 2 x 1.57/0.53ICATBLACK230.0014.412012.30
5311I150212 x 2 x 1.57/0.53ICATBLUE230.0014.412012.30
5311I150505 x 2 x 1.57/0.53ICATBLACK410.0018.512012.30
5311I150515 x 2 x 1.57/0.53ICATBLUE410.0018.512012.30
5311I1510010 x 2 x 1.57/0.53ICATBLACK730.0026.112012.30
5311I1510110 x 2 x 1.57/0.53ICATBLUE730.0026.112012.30
5311I1520020 x 2 x 1.57/0.53ICATBLACK1,283.0034.212012.30
5311I1520120 x 2 x 1.57/0.53ICATBLUE1,283.0034.212012.30

Capacitance figures are mutual @1kHz.

Larger pair counts and triple configurations are available on request.