Power Cable Accessories

Transition joints for screened, polymeric insulated cables to screened, paper
insulated cables with one metal sheath per phase 10 kV, 15 kV, 20 kV and 35 kV
Cable
The joints are designed for single or 3core,
screened, paper insulated (MI,
MIND) cables with one metal sheath per
phase to screened single or three core
polymeric insulated cables 10, 15, 20 and
35 kV.
For example: ACHPAbI, NAHKBA, AOSB,
A2YSb(r)Y, A2YSY, АОСБ-АПвП, ОСБ-
ПпП, HAKnX-YHAKXS, 3HK-XUHAKXS,
ANKOY-AXEKVC(E)Y, ANKTOYPV-
AXEKVC(E)Y, ANKTOYPV-N(A)2XSY,
IZPO 13, NPZO 13, NPHO 13, NPZOP
13, N(A)HEKBA na XHE 49, XHP 48,
N(A)2XS(F)2Y, XHP 81, N(A)YSEY.
8 2
L
D
Design of joints with
mechanical connectors
For three-core paper cables a solderless
earth connection provides the connection
between the armour and the metal
sheaths. A heat-shrinkable breakout and
tubing seal and protect the metal sheaths.
A stress grading, oil resistive, yellow
mastic is laid around the end of the metal
sheath and the paper cores are
completely covered with oil barrier tubing.
Thus the paper cable is transformed to a
quasi polymeric cable construction and
the cable jointed similarly.
Yellow, void filling mastic is laid around
the screen end of the polymeric cables.
The cores of the polymeric cables and of
the paper cables are covered with heatshrinkable
stress control tubing. The
conductors are jointed with mechanical
connectors supplied with the joint. Yellow
void filling mastic seals the end of the
paper cores and the connection area is
covered with a stress control patch. A
heat-shrinkable, dual-wall elastomeric
tubing provides the correct thickness of
insulation and the screening over the
insulation. Copper mesh wrapped around
the joint area rebuilds the metallic screen.
The metal sheath and the metal screen of
the plastic cable are jointed with
solderless connections. The outer sealing
and protection is performed by an
adhesive coated, thick-wall heatshrinkable
tubing over each cable core.
Screened 3-core paper insulated cable to
one core polymeric insulated cable
Dimensions L, D see table
Design of joints without
connectors
For three-core paper cables a solderless
earth connection provides the connection
between the armour and the metal
sheaths. A heat shrinkable breakout and
tubing seal and protect the metal sheaths.
A stress grading, oil resistive, yellow
mastic is laid around the end of the metal
sheath and the paper cores are
completely covered with oil barrier tubing.
A short conductive tubing rebuilds the
screen from the metal sheath to the
covered paper core. Thus the paper cable
is transformed to a quasi polymeric cable
construction and the cable jointed
similarly.
At the end of the conductive tubing, the
screen cut of the polymeric cable and
over the connectors yellow, void filling
mastic is applied. The jointing area of
each cable core is covered with a heatshrinkable
stress control tubing. Aheatshrinkable,
dual-wall, elastomeric tubing
provides the correct thickness of
insulation and the screening over the
insulation. Copper mesh wrapped around
the joint area rebuilds the metallic
screen.
The metal sheath and the metal screen of
the plastic cable are jointed with
solderless connections. The outer sealing
and protection is performed by an
adhesive coated, thick-wall, heatshrinkable
tubing over each cable core.
For three core polymeric insulated cables
one tubing replaces the oversheath.