A world first one piece 11kV to 66kV moulding with the voltage designation determined by selection from a range of interchangeable intemediate insulators.  This provides electrical utilites with a viable alternative to current cross arms.

Over the past few years EMC Pacific Pty Ltd (EMCP), has invested considerable resources in the development of a world first, one-piece medium-voltage crossarm insulator, using a specialised hydrophobic cycloaliphatic epoxy resin (PH-CEP). 

Labelled the “IXI” integrated crossarm, the commercial release of the
patented design is a one piece 11kV to 69kV moulding with the voltage designation determined by selection from a range of interchangeable intermediate insulators and provides electrical utilities with a viable alternative to current cross arms.  The combined creepage of the insulators and the cross arm between the phase and ground is suitable for up to a 69 kV line and heavy pollution environments. Through the one piece construction both pole dressing time and inventory requirements are reduced and some significant performance advantages are achieved.

EMCP’s IXI features outstanding natural wash-off of pollutants due to the PH-CEP construction and sloping profile, which when combined with the large creepage distance keeps leakage currents at bay. Therefore the IXI improves network reliability and reduces maintenance requirements, especially in polluted or contaminated environments. The reduction in electrical leakage losses can lead to additional pay off in commensurate reduction of electrical generation carbon emissions.

The solid and specialised PH-CEP construction also provides;

Exceptional mechanical integrity - stress mode analysed, fully design tested. Mechanical durability tested under continuous peak line loads for extensive periods.

OH&S advantages through combined cross arm and insulator weight reductions. Additional EWP safety.

Dependable insulation in all types of environments, i.e. not subject to chemical attack or moisture ingress. 

Superior dry arc distance, dielectric strength and self restoring hydrophobic insulation.

High thermal shock resistance. The IXI will not shatter due to thermal shock.

Exceptional Lightning Impulse Withstand Voltage values and high puncture resistance to lightning strikes.

Reduced pole dressing time and cost savings from simplified and convenient installation, providing exceptional value.

The mounting mechanism for the IXI has been designed such that forces and stress associated with fixing to the pole are isolated from the resin component of the IXI.  The contour and profile of the steel mounting mechanism load bearing locations are designed so that the IXI can be readily mounted to a broad range of pole tapers and profiles. Bearing points for the mounting mechanism are tolerant of non uniformities prevalent in the cross section of wood poles.

Full independent electrical performance testing has been undertaken by Powertech Labs to international standards with line evaluations and customer orders being supplied in Australasia, Philippines, Canada and USA. Consequently volume production methods are under progressive implementation at EMCP’s manufacturing facility in Dandenong, Victoria, Australia.

Please contact EMC Pacific for further details and technical data sheets.