Page 559 - Industrial Power Engineering and Applications Handbook

Captive (emergency) power generation 16/533

I
Pupper XLPE insuluted PE EP richhei
PVC shented
________
In common
use up to
cable for all 11 kV but no 2 Fire retardant, has low 2 Resistant to oil,
LT applica inhibition up smoke and low halogen fire and heat
tions and up to 33 kV emission under fire ~ 3 They are copper
to 11 kV in conditions conductor cables to
HT 3 Strong resistance to save from breakages
deformation at high 4 Being highly
temperatures flexible. are ideal
1 High thermal stability for material
5 Until a few years ago paper handling
insulated cables had a applications such
dominant position but not as cranes. hoists,
so with the advent of ' I lifts and all
XLPE cables (a develop- In~Vd~latloIl\
ment of the 1960s). in mounted on
view of their higher thermal moving platform\.
rating and availability in all Uqed as a trailing
voltage ranges up to 400 kV ~ cable for reeling
and above. This situation is and unreeling
almost similar to SF,, operations
technology over vacuum
(Chapter 19). While vacuum
is preferred it has limitations
in HT above 33 kV as havc
paper insulated cables, which
are available up to 33 kV
and have limitations beyond
this. Hence the use of
XLPE cables for HV and
~- _ _ ~ - ~- EHV installations
20 Likely applications Power distribution and ~ Power plants for hulk Mziaidc
control wiring transfer of energy for - Reeling-unreeling
Utilities, lifts, elevators transmission and operations such as
Underground railway distribution of power - Hoists
transport - Chemicals and fertilizers - Conveyors
Mining - Underground metro - Lifts
Submersible pumps ~ - Mining ~ - Dumpers
Paper, mining - High fire risk zones - Trailing cables
Chemicals and fertilizer? - All possible applications - Portable drill\
All locations that are not i - Earth-moving
I - Offshore platform
fire hazardous machinery
feeder cables
' - Ship wiring
- Transportation
- Railways
- Ovens
- Furnaces
I - Steel rolling mills
~.
NOIt,.\
I Flame retardant low smoke (FRLS) cables
Where greater safety for equipment and personnel against a likely occurrence of fire is a pre-requisite FRLS coating is used on practically all types of
cable?, described abovc. as in IEEE 383, IEC 60332 I and IEC 60754-1. This coating will restrict the spread of fire and produce a low smoke.
Applications
- Hazardous location. -Hotels -Public places, for safety to life and property
-High rise huildingr -Schools -Offshore platforms etc
- Ho\pitals -Power stations
~ Thearc\ -Office\, banks
2 Fire survival cables (FS)
These are heat- and flameproof cables suitable for high f-ire risk zones. In severe fire conditions, when the outer protection and insulation have been
destroyed, these cables would still maintain continuity of essential services.
-Emit vrry low smoke.
-For installations prone to ignition and fire, these cables can sustain fire for three hours as in IEC 60331, to minimize the extent offire and consequent
damage.
-This. however. I\ pos\ible only in special EP rubber compounds as noted above.
Applications
- Firefighting sy\terns -Emergency lighting
-Pumping - Offshore platforms
-Safety alarm\ -All places of high fire risks