Modification of wire and cable insulation
Modification of wire and cable insulation
Modification of wire and cable insulation
Modification of wire and cable insulation

At the end of the 1950s, British scientists under the leadership of A. Charlesby discovered and investigated the process of solid-state crosslinking of polyethylene molecules under the action of ionising radiation and began to study the properties of crosslinked polyethylene. It was found that in cross-linked polyethylene a quasi-crystalline structure is formed, due to which it ceases to behave as an amorphous body - at a high degree of cross-linking it ceases to melt and can retain its shape when the temperature rises to high values, until it is charred.

This discovery stimulated the development of radiation chemistry and led to the development and production of cross-linked polyethylene insulated wires and cables with increased fire resistance.

At the end of the 1950s, British scientists under the leadership of A. Charlesby discovered and investigated the process of solid-state crosslinking of polyethylene molecules under the action of ionising radiation and began to study the properties of crosslinked polyethylene. It was found that in cross-linked polyethylene a quasi-crystalline structure is formed, due to which it ceases to behave as an amorphous body - at a high degree of cross-linking it ceases to melt and can retain its shape when the temperature rises to high values, until it is charred.

This discovery stimulated the development of radiation chemistry and led to the development and production of cross-linked polyethylene insulated wires and cables with increased fire resistance.

At the end of the 1950s, British scientists under the leadership of A. Charlesby discovered and investigated the process of solid-state crosslinking of polyethylene molecules under the action of ionising radiation and began to study the properties of crosslinked polyethylene. It was found that in cross-linked polyethylene a quasi-crystalline structure is formed, due to which it ceases to behave as an amorphous body - at a high degree of cross-linking it ceases to melt and can retain its shape when the temperature rises to high values, until it is charred.

This discovery stimulated the development of radiation chemistry and led to the development and production of cross-linked polyethylene insulated wires and cables with increased fire resistance.

At the end of the 1950s, British scientists under the leadership of A. Charlesby discovered and investigated the process of solid-state crosslinking of polyethylene molecules under the action of ionising radiation and began to study the properties of crosslinked polyethylene. It was found that in cross-linked polyethylene a quasi-crystalline structure is formed, due to which it ceases to behave as an amorphous body - at a high degree of cross-linking it ceases to melt and can retain its shape when the temperature rises to high values, until it is charred.

This discovery stimulated the development of radiation chemistry and led to the development and production of cross-linked polyethylene insulated wires and cables with increased fire resistance.


Electron beam cross-linking of insulating sheaths of wires and cables is one of the best known industrial applications of industrial ELV accelerators.

Irradiated wires are now widely used in power generation, communications, electronics, vehicles and ships, aerospace, military, petroleum, railways and household appliances.

Radiation crosslinking prevents melting of the wire insulation, which can occur as a result of short circuits or exposure to
high temperatures.
Comparison of fire resistance of cross-linked and non-cross-linked insulation

Electron beam cross-linking of insulating sheaths of wires and cables is one of the best known industrial applications of industrial ELV accelerators.

Irradiated wires are now widely used in power generation, communications, electronics, vehicles and ships, aerospace, military, petroleum, railways and household appliances.

Radiation crosslinking prevents melting of the wire insulation, which can occur as a result of short circuits or exposure to
high temperatures.
Comparison of fire resistance of cross-linked and non-cross-linked insulation
Electron beam cross-linking of insulating sheaths of wires and cables is one of the best known industrial applications of industrial ELV accelerators.

Irradiated wires are now widely used in power generation, communications, electronics, vehicles and ships, aerospace, military, petroleum, railways and household appliances.

Radiation crosslinking prevents melting of the wire insulation, which can occur as a result of short circuits or exposure to
high temperatures.
Comparison of fire resistance of cross-linked and non-cross-linked insulation
Electron beam cross-linking of insulating sheaths of wires and cables is one of the best known industrial applications of industrial ELV accelerators.

Irradiated wires are now widely used in power generation, communications, electronics, vehicles and ships, aerospace, military, petroleum, railways and household appliances.

Radiation crosslinking prevents melting of the wire insulation, which can occur as a result of short circuits or exposure to
high temperatures.


Comparison of fire resistance of cross-linked and non-cross-linked insulation
Subbeam transport system, developed at the Institute of Nuclear Physics. It was first applied and is still used today at Podolskkkabel.

Subsequently, it was modernised in China by our partner Zhang Changyou and is now one of the world's best such devices.