Nexans Euromold products include MV-HV Connectors, Joints
& Terminations to connect, splice, repair and maintain medium/high voltage
cable and power distribution systems – commonly referred to as cable plugs,
Tee’s or elbows the Euromold range of connectors suit all European DIN EN
50180 and American (ANSI) specification bushings.
The separable connector (bolted
types) connect polymeric insulated cable to MV-HV transformers, switchgear,
ring main units, motors or capacitors forming a screened, touch-proof cable
termination compatible with gas insulated electrical equipment operating at
typical voltage classes of 11kV, 33kV and 66kV.
EUROMOLD
CONNECTORS
Euromold connectors are premoulded EPDM cable accessories for medium and
high voltage cable installations. Meeting international standards to ensure the safe distribution
of onshore and offshore electricity supply – Interface C compact screened separable connectors are
available for applications where confined space working for the cable
connectors, such as 33kV wind turbine switchgear terminations, requires a compacted design of connector.
The
following Interface C tee connector, compact version, shows the features common
to Euromold connector designs – a screenbreak design connector enables the
cable outer sheath testing without removing the connectors from switchgear,
transformer or electrical equipment.
All Euromold connectors are deadbreak
connectors –
MV HV power has to be switched off before the connector can be disconnected
from the interface bushing.
Load-break connectors can be pulled
from the MV HV electrical equipment with an insulating stick while the cable is
still under load or energisation without requirement to isolate the power
cables and systems.
The
Euromold connectors are watertight medium/high voltage electrical connections
both at the interface bushing of the switchgear or transformer and at the cable
entrance. Additional water sealing mastic is applied on the cable sheath jacket
for copper wire screen cable installations. Energisation of the connector is
immediate after completion of installation in accordance with the manufacturer’s
instructions.
EPDM Rubber Connector & “Safe To Touch”
EPDM
is an Ethylene Propylene Diene Monomer rubber – the outer jacket and insert of
the connector are both semi-conductive while the material in between these two
connector layers is insulating EPDM. The separable connectors are manufactured
from EPDM providing high mechanical strength which can be easily connected and
disconnected from the MV HV bushing for maintenance – silicone cable connectors
have a tendency to attach and “stick” to the bushings and cannot be easily
removed easily without damaging the actual connector.
Euromold
connectors are electrically safe for accidental touch due to the 3mm thick
semi-conductive layer connected to earth.
Nexans
Euromold connectors include capacitive test points for checking MV HV circuit
conditions – the cap of the test point is safe to remove and accidentally touch
without protection. The overall available energy is at a minimal level
therefore any potential will disappear immediately when touched by the
operator. The VD-point has a high impedance and the current transfer is a
fraction of a micro ampère and imperceptible to human touch. Intended
manipulation during planned maintenance work of the cable connectors should be
done with insulating stick, insulated pliers or
other appropriate electrical safety equipment.
The Euromold cable adaptors are manufactured from
compound with a high permittivity factor to provide electrical stress relief at
the semicon cut-off point of the cable. Because the cable adaptors are not
conductive they provide an effective screenbreak between the MV HV cable and
the separable connector housing allowing the cable screen to be tested without
disconnecting the connector from the equipment.
The IP (Ingress Protection) rating of the Euromold
connectors is IP67 – the cable connectors are completely dust-tight and
suitable for immersion in water of <1m depth.
LOCAL SUPPORT
CSL
can support the specification and supply of the correct connector – heat
shrink, cold shrink and push-on joints and terminations
are also available, contact us with your requirements or technical queries.