AS/NZS 3808:2000 pdf – Insulating and sheathing materials for electric cables.
4.2 Sheathing material
Designations and descriptions of the sheathing materials referenced in this Standard are as follows:
(a) 3V-5—a modified form of 4V-75 with reduced mechanical properties to facilitate stripping from the cable, suitable for up to 75°C maximum continuous operating temperature.
(b) 3V-90——a higher temperature version of the above 3V-75 compound. suitable for up to 90°C maximum continuous operating temperature.
(c) 4V-75——a combination of materials, of which the base constituent is thermoplastic polyvinyl chloride, suitable for up to 75°C maximum continuous operating tern pe ratu re.
(d) 5V-90——a higher temperature version of 4V-75. suitable for up to 90°C maximum continuous operating temperature.
(e) E-IIO-R—a cross-linked elastomer compound for higher lemperature applications. suitable for up to 110°C maximum continuous operating temperature.
(f) GP-75-TPE—a compound of thermoplastic elastomer which may be a blend of two or more polymeric materials, suitable for up to 75°C maximum continuous operating tern pe ratu re.
(g) GP-85-PCP—a general purpose cross-linked compound based on polychioroprene, suitable for up to 85°C maximum continuous operating temperature.
(h) GP-90-CPE—a general purpose cross-linked compound based on chlorinated polyethylene, suitable for up to 90°C maximum continuous operating temperature.
(i) GP-90-CSP—a general purpose cross-linked compound based on chlorosulphonated polyethylene. suitable for up to 90°C maximum continuous operating temperature.
(j) (JP-iOO-CPE—a higher temperature version of GP-90-CPE. suitable for up o 100°C maximum continuous operating temperature.
(k) GP-iOO-cSP—a higher temperature version of GP-90-CSP. suitable for up to 100°C maximum continuous operating temperature.
(l) GP-150-S— a general purpose cross-linked compound based on polyorganosiloxane. suitable for up to 150°C maximum continuous operating temperature.
(m) HD-85-PCP—a heavy duty version of (iP-85-PCP, suitable for up to 85°C maximum continuous operating temperature.
(n) HD-90-CPE—a heavy duty version of GP-90-CPE. suitable for up to 90°C maximum continuous operating temperature.
(o) IID-90-c.SP—a heavy duty version of GP-90-CSP, suitable for up to 90°C maximum continuous operating temperature.
(p) HD-105-LPE—a heavy duty cross-linked compound based on chlorinated polyethylene, suitable for up to 105°C maximum continuous operating temperature.
5.2 PVC materials
The properties of PVC materials are specified in the following tables:
Table 5:
Tests and criteria for PVC insulation
Table 6:
Tests and criteria for PVC sheath
NOTES:
1 PVC is subject to thermal deformation at temperatures of 90°C and above. The use of higher
temperature rated insulation material does not necessarily permit a higher current rating.
These higher temperature materials are for use as appropriate where cables are subject to
elevated external temperatures. For further guidance refer to AS/NZS 3008.1.
Where it is possible to guard against plastic flow and where reduced insulation resistance can
be tolerated, V-90HT can be operated at a temperature of 105°C for an average of 500 hours
per annum.
AS/NZS 3808:2000 pdf – Insulating and sheathing materials for electric cables
