Page 226 - Elpress英文样本电气连接压接系统

General comments on the use of Elpress terminals for voltages of

12 kV and above

Terminals Through connectors type AS PEX insulated cable against oil
The modern and easy-to-use cable Through connectors type AS used when impregnated cable
terminations for 12 to 36 kV PEX splicing aluminium-conductors. When installing a transition splice
insulated cable consisting of between cables with oil impregnated
prefabricated modules or even fully Through connectors type AKS insulation and PEX insulation at voltages
finished terminations, provide no or very of 12 kV and above, connectors with
little restriction in the use of terminals Through connectors of type AKS are partitions must be used, regardless of the
with type designations AK, AKK or KRF. used for jointing of Al conductors to Cu splicing method and make. AKS, KSF-M
This also includes the ”top pins” with the conductors. and AS connectors always have parti-
type designation AKP. tions.
One detail to take into account when
using KRF terminals outdoors is that this
terminal is equipped with an inspection Oil impregnated against oil-im-
hole that must be sealed. Your supplier pregnated cable
of cable terminations can provide its
specific solution. When splicing two cables with this type
Terminals type AK, AKK or ”top pin” AKP Joint sleeves PEX insulated cable of insulation, connectors of type AS, AKS,
can today be used on high voltage cable against PEX insulated cable or KSF can be used, whether it is an oil
terminations where solutions are tube connector or a ”dry” heat shrink
available up to 84 kV. In case of doubt, In Sweden, four types of splice are connector.
always consult with your cable currently used in the voltage range 12 to
termination supplier for specific solutions 36 kV. These are tape, heat shrink, cold
for different issues regarding technical shrink and push-on joints. All these joints
details regarding the design. are designed to accept AS, AKS and KSF
When installing cable terminations for through connectors. No connectors with
oil impregnated paper cable where an oil conical ends are required today.
reservoir is used, manufacturers usually Different manufacturers have their own
have their own specially designed solutions that are designed to take care
solutions for the conductor connections. of, for example, the punch holes and the
distance between the insulation edge
and the through connector.
Terminals type AK Always note the joint manufacturer’s di-

Terminal type AK is used at termination rections regarding maximum lengths and
of an Al conductor for connection to diameters of the connectors. If you are
busbars and apparatus sockets not sure, or if the installation instructions
do not indicate what you are considering,
consult your joint supplier.

Terminals type AKK
At higher voltages, e.g. 52 and 84 kV,
Terminals of type AKK are used at the end other requirements are placed on the
of an Al conductor for connection to a Cu through connectors depending on the
bus bar. joint design and design. However, there
are solutions where ”normal” through
connectors are used together with filler

materials in the voltage range up to 145
kV.

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