Electrical & Telecommunication Cable Conduit. Table : 1.7 Shows the UPVC pipes of different gauges - medium and heavy gauge - for use as electrical and telecommunication conduits. For consideration of pipes of other dimensions our Technical Sales Department may be consulted. Dimensions Based on SSA 255 & BS6099: 2-2  Table 1.7

Nominal outside diameter,mm   16 20 25 32 38 40 50 Medium Gauge (MG) Nominal Wall thickness,mm 1.5 1.6 1.8 2.1 2.3 2.3 2.8 Heavy Gauge(HG) Nominal Wall thickness, mm 1.9 2.1 2.2 2.7 2.8 2.8 3.4