Insulated overhead self-supporting wires

SIP-4 under Belarus quality requirements 500017371.051-2009
SIP-4 under quality requirements 16-705.500-2006

APPLICATION

Insulated overhead self-supporting wires are designed for nominal voltage up to 0,6/1 кV nominal frequency 50Hz. SIP-4 - Self-supporting wire with aluminium conductors, with insulation from light-stabilized cross-linked PE, without messenger wire for submains, for installation on external walls and for overhead lines.

DESIGN

MOTHER LODE — compacted round aluminium multi-wire.
INSULATION — light stabilized cross-linked polyethylene of black colour.
STRAND — insulated cores are twisted among themselves. The core strand has the right direction.

TECHNICAL DATA

Number & nominal cross-section of conductors, mm²	External diameter of wire, mm	Mother-lode DC resistance, Ohm, no more	Weight, kg/km	Permissible current loading, А, not more
2х16	15	1,910	148	100
4х16	18	1,910	295	100
2х25	17	1,200	208	130
4х25	21	1,200	417	130

Wires resist to sunlight and rain influence.
Range of operational temperatures is from -60°C to +50°С.
Permissible ambient temperature at installation is not below -20°C.
The bending radius at installation and on supports should be equal to 10 external wire diameters.
Permissible conductor heating temperature at operation should not exceed 90°С at normal mode and 250°С - at short circuit.
The delivery length of wires is agreed at order.
Average service life of wires is 40 years.