Control cables are primarily classified based on their structure, material, and functional
characteristics. The categories and application scenarios are as follows:
I. Classification by Basic Structure of types of control cables
KVV:Copper-core PVC-insulated PVC-sheathed cable, suitable for fixed installations
below 450/750V (such as industrial control circuits).
KVVP:Based on the KVV cable, this cable adds a copper braided shield to provide
electromagnetic interference resistance. It is used in power system control circuits.
KVVR:Fine-stranded copper conductor offers excellent flexibility and is suitable for
frequent movement.
KVV22:Steel-belt armored construction offers mechanical resistance and is suitable for
underground installations or environments subject to high stress.
II. Classification by Special Function of types of control cables
Flame-Retardant Type (ZR-KVV):The insulation layer has a flame retardant added, suitable
for use in requirements.
Fire-Resistant Type (NH-KVV):Contains a mica tape fire-resistant layer to maintain power
supply during fires, suitable for emergency circuits such as fire protection systems.
High-Temperature Type (KYJV):Cross-linked polyethylene insulation, temperature resistant
to 90°C, offers improved electrical performance, and is suitable for high-temperature or
long-life applications.
III. Derivative Models and Applications of types of control cables
KVVRP:Shielded flexible cable, combining flexibility and anti-interference capabilities.
KVV32:Steel wire armored type, with higher mechanical strength than steel tape
armored type.
MKVV Series:Mining control cables, designed for use in special environments such as
mines.
IV. Model Naming Rules of types of control cables
First Letter: K represents control cable (different from power cables, which have no
letter designation).
Insulation Material: V stands for polyvinyl chloride, YJ for cross-linked polyethylene.
Jacket and Shield:The second V indicates the PVC jacket, P for the shield, and R for
the flexible structure.
The number 22 indicates steel tape armor, and 32 indicates steel wire armor.
Prefix Designations: ZR (flame retardant), NH (fire resistant), etc.
V. Typical Application Scenarios of types of control cables
Substation Control Circuit: Shielded types (KVVP/KYJV) are preferred.
Mobile Device Connection: Flexible structures (KVVR/KVVRP) are required.
Emergency Power Supply System: Fire resistant types (NH-KVV) must be used.
