Three core and earth cable. Can be installed in fixed installations in dry or damp premises clipped to surface, on trays or in free air where mechanical damage would not be an issue. Suitable for laying in conduit or trunking where mechanical protection is required. Three core and earth cable is a name for a type of mains electricity cable. It comprises two individually insulated current carrying conductors and an uninsulated (bare) circuit protective (earth) conductor.
There is an overall sheath of grey PVC (BS 6004), or white for low smoke compound (BS 7211)
Three core and earth cable Standards: BS 6004:2000
Three core and earth cable Conductor: Three core and earth cable Plain copper conductors to BS EN 60228, Class 1 solid: 1.0mm², 1.5mm² and 2.5mm² , Class 2 stranded: 4.0mm², 6.0mm², 10.0mm² and 16.0mm²
Three core and earth cable Circuit Protection Conductor (Earth): Class 1 solid plain copper conductor: 1.0mm², 1.5mm² and 2.5mm², Class 2 stranded plain copper conductor: 4.0mm², 6.0mm², 10.0mm² and 16.0mm²
Three core and earth cable Insulation: PVC type TI 1 to BS EN 50363-3:2005
Three core and earth cable Sheath: PVC (Polyvinyl Chloride) to BS 7655-4.2:2000
Three core and earth cable Sheath Colour: Grey
Three core and earth cable Voltage Rating: 300/500V
Three core and and earth cable Temperature Rating : Max: +70ºC , Short Circuit : 160°C
Three core and earth Minimum Bending Radius: 6 x overall diameter
Three core and earth Core Identification : Single Core: Brown or Blue, Twin: Brown and Blue, Three Core: Brown, Black (centre core), Grey Standard metric three core and earth cable sizes
1/1mm² Three core and Earth cable, 1.5/1mm² Three core and earth cable and 2.5/1.5mm² three core and earth cable have solid conductors and cpc.
4/1.5mm² Three core and earth cable and 6/2.5mm² Three core and earth cable have stranded conductors and a solid cpc.
10/4mm² Three core and earth cable and 16/6mm² Three core and earth cable have stranded conductors and cpc.