composite outdoor termination
OTC - 123
Type
Voltage Class
PRODUCT DESCRIPTION
This sealing end is designed to terminate an extruded high voltage cable in outdoor conditions.
BASIC COMPONENTS
1
1) INSULATOR
• composite type insulator with glass fibre reinforced epoxy resin tube
and silicon rubber sheds
• shed colour: light grey
• top and bottom flanges glued and sealed to the composite insulator
• corona shield integrated in top flange
2) CABLE END
• pre-moulded and factory-tested stress cone
• solid rod top connector
• base plate
• wiping gland, provided with M12 earth connections for bonding leads
• support insulators
• seals and fixing materials
• unpressurised synthetic oil as an insulating medium
ADDITIONAL OPTIONS
• connection for coaxial earthing wire
• branching of integrated optical fibres from the power cable
2
AREA OF APPLICATION
• maximum system voltage
• cable conductor cross section range
• aluminium round solid
• aluminium round stranded or Milliken
• copper round stranded or Milliken
• Maximum cable insulation diameter (prepared)
: 123 kV
: 240 - 2000 mm²
: 240 - 1200 mm²
: 400 - 2000 mm²
: 400 - 2000 mm²
: 101 mm1
CREEPAGE DISTANCE
• minimum guaranteed flashover distance
• minimum guaranteed creepage distance2
• pollution level IEC 60137 / IEC 60072
: 1165 mm
: 2765 mm
: II
ADDITIONAL OPTIONS
• arcing horns
• aerial lugs
RECOMMENDATIONS FOR AERIAL LUGS
Aerial lugs are not included in the accessory kit. Depending on the conductor material of the cable, the
advised aerial lugs are specified below. In all cases contact grease must be used between the top
connector of the outdoor termination and the aerial lug.
COPPER CONDUCTOR
ALUMINIUM CONDUCTOR
top connector: tinned copper
top connector: aluminium
• copper (bronze) lug
• aluminium lug
• transition lug (Al - Cu)
• transition lug (Al - Cu)
possible alternative :
tinned copper (bronze) lug
possible alternative:
aluminium lug
1
deviating cable specifications possible on request
2
increased creepage distance using alternating shed design (specifications available on request)
page:
1 of 3
date: 18/04/2006
OTC - 123
Type
composite outdoor termination
Voltage Class
ELECTRICAL DATA
AC withstand voltage
• 24 hours
• 1 minute
Impulse withstand voltage (10+/10- impulses)
Maximum partial discharge level
:
:
:
:
190 kV
230 kV
550 kV
5 pC at 110 kV
Stress cone electrical routine test demands
AC voltage withstand test
Partial discharge test
:
:
160 kV for 30 min
<5 pC at 110 kV
Current capacity
Nominal operating current
Short circuit current
:
:
limited by cable specification
limited by cable specification
Support insulator withstand voltages
AC voltage
DC voltage
impulse voltage (10+/10- impulses)
:
:
:
10 kV
20 kV
40 kV
ALL TYPE TESTS ACCORDING TO REQUIREMENTS
IEC 60840
NEN 3630
IEEE Std 48
MECHANICAL DATA
maximum allowed inclination with vertical
:
30°
approximate weight
:
90 kg
maximum allowed force on top connector
:
4700 N (horizontal)
for the US market: standard a top connector with a diameter of 1,5 or 2 inch will be applied
INSTALLATION
• site condition
• Installation work
• Installation temperature
: protected against rain and dust
: only by certified/trained jointers
: min 0 / max 40 ºC
page:
2 of 3
date: 18/04/2006
OTC - 123
Type
composite outdoor termination
Voltage Class
TYPICAL DRAWING
geleider / conductor
240 - 400 mm2 Al
500 - 1200 mm2 Al
185 - 400 mm2 Cu
500 - 1200 mm2 Cu
1600 mm2 Cu
A
[mm]
1650
1705
1610
1655
1610
ØB
[mm]
40
40
40
40
60
Note: for the US ØB will be 1,5 inch
instead of 40mm and 2 inch instead of
60mm
page:
3 of 3
date: 18/04/2006