Heat Shrink High Voltage Joints

Description

Parameter
Heat-shrinkable stress control sleeves
Torque-controlled connector
Water and corrosion-resistant
Joint ﬁts on all polymeric cable constructions
Proven shield continuity concept
Short cut-back dimension
Cable size transition possible
Unlimited shelf life under normal storage conditions
Suitable for wide range of mechanical connectors
Tested under International standards

Sr. No.	Particulars	Specifications
1	Applicable Standards	IEC 60840
2	Nominal System Voltage	66kV Phase to Phase
3	Highest System Voltage	72.5kV
4	Impulse Voltage at 95 to 1000C temperature	325kV (Peak)
5	Frequency	50 Hz.
6	AC High Voltage withstand test 15 min dry	95 kV
7	Partial Discharge Test at Ambient Pre-Stressed at 1.75U0 (67kV) 10sec Measured at 1.5U0 (57kV)	Less than 5pC
8	Partial Discharge Test at Elevated (95-1000C) Pre-Stressed at 1.75U0 (67kV) 10sec Measured at 1.5U0 (57kV)	Less than 5pC
9	Heating Cycle Voltage Test
	Total Duration of one cycle	24hr
	Duration of Heating period	8hr
	Duration of natural cooling period	16hr
	Temp. of conductor during heating	95 to 1000C
	AC voltage applied during test	76kV
	No. of cycles	20
10	Short Circuit Current	Same as cable size subject to max. Conductor temperature of 250oC
11	Creepage (outdoor)	2300mm min.
12	Accessories	Mechanical connectors (if ordered separately for terminations)
13	Method of Stress Control	Heat Shrinkable type
14	Tubing’s & Molded parts	Heat Shrinkable type
15	Non-Tracking material	As per ASTM D-2303
16	Di-electric strength of insulating material	10 kV/mm min
Heat Shrink Type Indoor/Outdoor Termination and Straight Through Joint for 66kV (E)

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