The cable constructed stranded aluminium conductors formed
around core steel stranded conductors (see Fig. The cable not
insulated since placed out reach and insulation would only add to
the weight the cable. The termination cable a
complicated process requiring the electrician demonstrate high level
of practical skill and expertise for the termination successful. 6.
However, much simpler use and terminate than cable.
The sheath circular and made robust thermoplastic low smoke, zero
halogen material.
High-voltage power cables
The cables used for high-voltage power distribution require termination
and installation expertise beyond the normal experience contracting
electrician.
The cable easy use PVC insulated and sheathed cable. The core colours are: two core, red and black, three
core, red, yellow and blue and four core, black, red, yellow and blue.0mm.
High-voltage overhead cables
Suspended from cable towers pylons, overhead cables must light,
flexible and strong.
FP 200 available and cores with conductor size range
from 1. The alumin-
ium conductors carry the current and the steel core provides the tensile
strength required suspend the cable between pylons.
FP 200 cable
FP 200 cable similar appearance cable that circular
tube, the shape pencil, and available with red white sheath. The regulations covering high-voltage distribution are beyond
the scope the IEE regulations for electrical installations. spe-
cial terminations are required, the cable may terminated through a
grommet into knock out box terminated through simple compres-
sion gland. Operating at
voltages excess 33kV and delivering thousands kilowatts, these
cables are either suspended out reach pylons buried the ground
in carefully constructed trenches.
The cable available with either solid stranded conductors that are
insulated with ‘insudite’ fire resistant insulation material.Basic electrical circuits and cables
127
air, unless adequately terminated.0 4. The conduct-
ors are then screened, wrapping aluminium tape around the insu-
lated conductors, that is, between the insulated conductors and the outer
sheath.
The cable fire resistant cable, primarily intended for use fire alarms
and emergency lighting installations may embedded plaster.4).
. This aluminium tape screen applied metal side down and con-
tact with the bare CPC
