EHV Outdoor Terminations

Category: Raychem RPG Tag: EHV Outdoor Terminations

Specifications

Oil filled 72/145/245 kV
Rated Voltage kV	36/66 (72.5)	76/132 (145)	127/220 (245)
Diameter over insulation	38.87 to 96.80	38.87 – 96.80 mm	62.33 – 128.25 mm
Diameter over sheath	≤120mm	≤140 mm	≤160 mm
Cable screen type	Corrugated Al. sheath, Copper wire, Copper tape, Lead sheath.	Corrugated aluminium sheath/Lead sheath/Cu wire. etc.	Corrugated aluminium sheath/Lead sheath/Cu wire. etc.
Cable Cross section (Al/Cu)	≤1200 mm²	≤1600 mm²	≤2500 mm²
Conductor connection	Mechanical (shear head bolts)	Mechanical (shear head bolts)	Mechanical (shear head bolts)
Material of connection bolt	Aluminium/Copper	Aluminium/Copper	Aluminium/Copper
Material of insulator – outer surface	Silicone Rubber	Silicone Rubber	Silicone Rubber
Colour of insulator	Grey	Grey	Grey
Method of stress control	Geometric	Geometric	Geometric
Stress cone	Pre-moulded silicone rubber	Pre-moulded silicone rubber	Pre-moulded silicone rubber
Insulating liquid	Silicone Oil/Ester oil/Polyisobutlyene oil	Silicone Oil/Ester oil/Polyisobutlyene oil	Silicone Oil/Ester oil/Polyisobutlyene oil
Installation temperature	0 °C – +40 °C	0 to +40	0 to +40
Operation temperature	-55 °C – +55 °C	-55 °C – +55 °C	-55 °C – +55 °C
Storage temperature	0 °C – +40 °C	0 to +40	0 to +40

Dry 145kV
Diameter over insulation	34 – 74 mm
Diameter over sheath	≤99 mm
Cable screen types	Cu-wires w/o laminated foil, lead sheath, corrugated metal sheath, Cu-tape (other types and combinations on request)
Max. Cross section (Al/Cu)	1200 mm²
Conductor connection	Mechanical (shear head bolts)
Material of connection bolt	Aluminium
Material of insulator – outer surface	Silicone rubber
Profile of insulator	Alternating sheds
Colour of insulator	Grey
Method of stress control	Geometric
Stress cone	Prefabricated silicone rubber
Max. permissible dielectric stress at core screen	4 kV/mm (at core screen of cable)
Insulating liquid	none
Material of fittings	Aluminium

Dry Flexible 145kV
Max. Cross section (Al/Cu)	1200 mm²
Max. XLPE Insulation diameter	≤ 78 mm
Connector style	Crimping (with Aerial Lug)
Creepage distance	4590 mm
Material of body	Silicone rubber
Comply with	IEC60840
Method of stress control	Stress cone
Cable Screen type	Cu Wire/Lead sheath/CAS/Copper tape
Grounding style	Mechanical connection without solder
Colour of insulator	Grey

Technical Information

Oil filled 72/145/245 kV
Relevant Standard		IEC 60840	IEC 60840	IEC 62067
Rated voltage Uo/U (Um)	kV	36/66 (72.5)	76/132 (145)	127/220 (245)
Rated frequency	Hz	50	50	50
Lightening impulse voltage 1.2/50µs	kVp	350	650	1050
Power frequency voltage withstand dry (15/30 min)	kV	90	190	254/318
Partial Discharge 1.5Uo (kV)	pC	≤5	≤5	≤5
Rated Current	kA	as per cable	as per cable	as per cable
Rated Short Circuit Current (conductor) 1s	kA	as per cable	as per cable	as per cable
Rated Short Circuit Current (sheath) 1s	kA	as per cable	as per cable	as per cable
Creepage distance (min.)	mm	2250	4500	7595
Flash-over distance	mm	740	1340	2320
Pollution level (IEC 60137; 1995, VDE 0674 Teil5)		IV	IV	IV
Withstand voltage of support insulators (AC/DC)	kV	10/20	10/20	10/20

Dry 145 kV
Relevant standard		IEC 60840 / IEEE 48
Rated voltage Uo/U (Um)	kV	76/132 (145)
Rated frequency	Hz	50
Lightening impulse voltage 1.2/50µs	kV	650
Power frequency voltage withstand dry (1 min)	kV	310
Power frequency voltage withstand wet (10 s)	kV	275
DC voltage withstand (15 min)	kV	355
Rated current	kA	as per cable
Rated short-circuit current (conductor)	kA	as per cable
Rated short-circuit current (sheath) 1s	kA	as per cable
Total creepage distance	mm	4680
Protected creepage distance (90° shadow)	mm	1820
Flash-over distance	mm	1320
Withstand voltage of support insulators (AC/DC)	kV	10/20

Dry Flexible 145 kV:
Relevant standard		IEC 60840
Rated voltage Uo/U (Um)	kV	76/132 (145)
Highest voltage	Hz	50
Lightening impulse voltage	kVp	650
Power frequency voltage withstand dry (30 min)	kV	190
Current capacity	A	as per cable
Permissible short-circuit current 1s	kA	as per cable

Description
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High Voltage Outdoor Terminations up to 245 kV – Dry and Fluid filled type with Composite insulators including link boxes. Composite terminations for voltage classes up to 245 kV operate under severe environmental conditions. Composite housings with creepage lengths up to 31 mm/kV are available for the most common and extremely pollution levels, according to IEC 60815 standard.

Fluid filled Composite Insulator Termination – leak proof and light weight composite housing
Fittings made of corrosion-resistant alloy
Prefabricated and factory-tested silicone-rubber stress cone
Torque-controlled shear head mechanical connector
Insulating-oil filling without preheating
No special tools required for installation
Insulated base plate for sheath sectionalization
Type tested according to IEC 60840 and IEC 62067 standards
Dry and Dry Flexible Self-Support Termination – Dry interface, no oil-filling
Self-supporting
Prefabricated and factory tested silicone-rubber stress cone
Torque-controlled shear head mechanical connector/compression connector
Fast and simple installation combining GIS plug-in technology with polymeric insulators
No special tools required for installation
Insulated base plate gland for sheath sectionalization
Type tested according to IEC 60840