15kv Top Bus-Bar System-European Cross T-Connector & Offset Screen Bus-Bar for Rmu

• Customization: Available
• Standard: GB, EN, China GB Code, JIS Code, TEMA, ASME
• Material: Silicone
• Model NO.: 15kV Top Bus-bar
• Transport Package: Box
• Trademark: ANDIPU
• Origin: China
• HS Code: 8535900000
• Production Capacity: 100000
• Package Size: 100.00cm * 100.00cm * 100.00cm
• Package Gross Weight: 100.000kg

Product Description

Product Introduction
The 15kV top bus-bar system (European cross/T-connector & offset screen bus-bar) is a fully insulated, fully sealed bus-bar connection solution for the top or bottom connection of ring main unit (RMU) switches. The product series includes:

• Cross connector (AST-15/630A) - for four-way connections
• T-connector (ADT-15/630A) - for three-way branches
• Offset screen bus-bar (AMG-15/630A) - for offset bus-bar connections (available in standard and hollow types)

The system is compatible with ABB, Siemens, Driescher and other major RMU brands, matching the standard socket of load switches. It can also be used in cable branch boxes with switches. Both screened and unscreened versions are available. It provides fully sealed, fully insulated connection for load switches, completely avoiding the critical defects caused by exposed high voltage in bad weather. RMUs assembled with cross connectors and T-connectors offer low investment and high reliability. The bus-bar length can be customized according to customer requirements, with the center distance L = bushing center distance = bus-bar mounting hole center distance.
Core Parameters

Parameter	Value
Rated voltage	15kV (12kV / 15kV)
Rated current	630A
Product types	Cross connector (AST-15/630A), T-connector (ADT-15/630A), Offset screen bus-bar (AMG-15/630A)
Shielding type	Screened / Unscreened
Compatible switches	ABB, Siemens, Driescher RMU load switches
Connection method	Plug-in, matching load switch standard socket
Center distance	L = bushing center distance = bus-bar mounting hole center distance (customizable)
Material	Conductive/insulating silicone rubber (or EPDM); copper/aluminum alloy inner core
Power frequency withstand voltage	45kV / 5min
Lightning impulse withstand voltage	95kV (peak)
Partial discharge level	≤10pC @ 15kV
Protection degree	IP67 (when mated)
Ambient temperature	-40ºC ~ +125ºC
Applicable standards	EN 50180/50181, IEEE 386, GB/T 12706.4

Application Scenarios
The 15kV top bus-bar system is widely used in medium-voltage RMUs and cable branch boxes as a bus-bar connection solution between switchgear:

1. RMU top/bottom connection - For bus-bar series connection or branching between multiple RMU units to achieve ring network power supply.
2. Fully sealed load switch connection - Replaces traditional exposed copper bars, completely avoiding hazards from bad weather (rain, snow, condensation, salt fog).
3. Cable branch boxes with switches - For bus-bar connections between load switches inside branch boxes to achieve multiple outgoing ways.
4. Modular RMU assembly - The preferred solution for assembling RMUs with cross connectors and T-connectors, offering low cost and high reliability.
5. Offset compensation for cabinet alignment - When the center distance between switchgear bushings has deviation, the offset screen bus-bar (AMG-15/630A) provides compensation.
6. Compact switchgear - The fully insulated design allows compact arrangement, saving installation space.