Model		name	Laying occasion
Copper core	Aluminum core	name	Laying occasion
VV	VLV	PVC insulated PVC sheathed power cable	It can be laid indoors, in tunnels, pipelines, cable trenches, inflammable and severely corrosive places, and can not bear external mechanical forces.
VY	VLY	PVC insulated polyethylene sheathed power cable	It can be laid indoors, in pipelines, cable trenches and severely corroded places, and can not bear external mechanical forces.
VV22	VLV22	PVC insulated steel tape armored PVC sheathed power cable	It can be laid indoors, in cable trenches, underground and severely corroded places, and can not bear tensile force.
VV23	VLV23	PVC insulated steel tape armored polyethylene sheathed power cable	It can be laid indoors, in cable trenches, underground and severely corroded places, and can not bear tensile force.
VV32	VLV32	PVC insulated fine steel wire armored PVC sheathed power cable	It can be laid underground, shaft, water and severely corroded places, and can not bear large tensile force.
VV33	VLV33	PVC insulated fine steel wire armored polyethylene sheathed power cable	It can be laid underground, shaft, water and severely corroded places, and can bear large tensile force.
VV42	VLV42	PVC insulated thick steel wire armored PVC sheathed power cable	It can be laid underground, shaft and severely corroded places, and can bear large tensile force.
VV43	VLV43	PVC insulated thick steel wire armored polyethylene sheathed power cable	It can be laid underground, shaft and severely corroded places, and can bear large tensile force.