Power Cable Accessories

Joints for 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 10, 15, 20 and 35 kV with
one metal sheath per phase.
For example: ACHPAbI, NAHKBA, AOSB,
OSB-V, AOSB, OSB, AVVB, AVVG,
APVG, ОСБ-В, АОСБ, ОСБ, Hkny,
HAKny, CNKOY, ANKOY, ANKTOYPV,
AMKTOYPV, IPZO 13, NPZO 13,
N(A)EKBA, N(A)KLEY.
7 0
L
D
Design of joints
For three-core cables a solderless earth
connection provides the connection
between the armour and the metal
sheaths. Heat-shrinkable breakouts 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 cables are jointed
similarly. At the end of the conductive
tubing and over the connectors stress
grading mastic is applied. The jointing
area of each cable core is covered with
a heat-shrinkable stress control tubing.
Aheat-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 sheaths are jointed with
solderless connections. For three core
cables the armour is replaced by a metal
tape. The outer sealing and protection is
performed by an adhesive coated, thickwall,
heat-shrinkable tubing for single
core cables and by a fibre-reinforced
wraparound for 3-core cables. Joints type
GUSJ are supplied with mechanical
connectors, joints type RPKJ and EPKJ
are supplied without connectors.
3-core paper insulated cable
Dimensions L, D see table