Home > Wires and Cables > Building Wire > IEC standard

H05V-U H05V-R H05V-K

H05V-K cable is used for the internal wiring of electric motors and transformers as well as other electrical appliances and lighting applications. It can be used in and at electronic appliances for measuring, regulating and controlling. The cables are also ideal for laying in pipes, surface wiring and conduit installations. Specifications according to HD 516 apply for respective specific applications. H05V-U cable is intended for the installation to the inside of apparatus as well as for the protective laying to the lightings, in dry rooms, in production facilities, switch and distributor boards, in tubes, under and surface mounting of plasters. H05V-R is preferably for installation indoors, in cable ducts and in industrial plants or switching stations, under ground installation. Can be used in switchboards and distributor boards or where a thicker strand of multi-wire is required.Found in electronic and electrical equipment and switch gear cabinets designed for export to a European country and for MRO replacement of European made equipment wire.

Standard DIN VDE 0281-3, BS 6004, HD 21.3

Maximum conductor operating temperature +70°C

Lowest ambient temperature for fixed installation -30°C

Lowest installation temperature -5°C

Nominal voltage Uo/U: 300/ 500 V

Test voltage 2000V

Send Email Chat Now

Construction

Technical Specifications

Quality Control

Application

Construction

H05V-U H05V-R H05V-K

Conductor

Annealed copper conductor acc. to EN 60228:
Class 1 solid -H05V-U
Class 2 stranded H05V-R
Class 5 flexible H05V-K

Insulation

PVC compound type TI 1

Color of insulation

Blue, black, brown, green/yellow or other colors

Technical Specifications

H05V-U H05V-R H05V-K

H05V-U

H05V-R

H05V-K

Minimum bending radius

Nominal Cross Section Area	Number of wires /Diameter of wires	Approx. Diameter of Conductor	Thickness of Insulation	Approx. Overall Diameter	Approx. Weight of cable	Max. Conductor Resistance at 20°C	Min. Insulation Resistance at 70°C



mm2	No./mm	mm	mm	mm	kg/km	Ω/km	MΩ.km
0.5	1/0.80	0.80	0.6	2.1	8.9	36.0	0.014
0.75	1/0.97	0.97	0.6	2.2	11.5	24.5	0.013
1	1/1.13	1.13	0.6	2.4	14.3	18.1	0.011

Nominal Cross Section Area	Number of wires /Diameter of wires	Approx. Diameter of Conductor	Thickness of Insulation	Approx. Overall Diameter	Approx. Weight of cable	Max. Conductor Resistance at 20°C	Min. Insulation Resistance at 70°C



mm2	No./mm	mm	mm	mm	kg/km	Ω/km	MΩ.km
0.5	7/0.30	0.90	0.6	2.1	8.9	36.0	0.014
0.75	7/0.37	1.11	0.6	2.3	11.5	24.5	0.012
1	7/0.43	1.29	0.6	2.5	14.4	18.1	0.011

Nominal Cross Section Area	Number of wires /Diameter of wires	Approx. Diameter of Conductor	Thickness of Insulation	Approx. Overall Diameter	Approx. Weight of cable	Max. Conductor Resistance at 20°C	Min. Insulation Resistance at 70°C



mm2	No./mm	mm	mm	mm	kg/km	Ω/km	MΩ.km
0.5	16/0.20	0.91	0.6	2.2	9.2	39.0	0.013
0.75	24/0.20	1.12	0.6	2.4	12.1	26.0	0.011
1	32/0.20	1.29	0.6	2.6	14.9	19.5	0.010

Minimum bending radius:	For cable diameter D (mm)
	D≤8	8<D≤12	12<D≤20	D>20
Normal use	4 D	5 D	6 D	6 D
Careful bending at termination	2 D	3 D	4 D	4 D

Quality Control

H05V-U H05V-R H05V-K

Raw Material Test

At NPC Electric, Raw Material Test for H05V-U, H05V-R, and H05V-K cables ensures consistent quality from the start. Copper conductors are tested for purity, electrical conductivity, tensile strength, and dimensional accuracy. PVC insulation compounds undergo evaluation for thermal stability, mechanical strength, aging resistance, and uniformity. All incoming materials are verified against harmonized standard requirements before production. This strict material control guarantees stable electrical performance, safe insulation properties, and long-term reliability of NPC Electric H05V series wires.

Process inspection

Process Inspection at NPC Electric closely monitors each manufacturing stage of H05V-U, H05V-R, and H05V-K cables. Conductor drawing and stranding processes are inspected for uniform structure and the correct conductor class. Insulation extrusion is checked for thickness consistency, concentricity, and surface quality. Continuous in-process inspections ensure compliance with design specifications and harmonized standards, preventing defects and maintaining consistent quality throughout the production process.

Finished Product

Finished Product Tests at NPC Electric confirm the safety and performance of H05V-U, H05V-R, and H05V-K cables. Electrical tests include resistance measurement, insulation resistance, and voltage withstand tests. Mechanical checks verify flexibility, bending performance, and dimensional compliance. Final visual inspection confirms marking clarity and overall workmanship before shipment.

Application

NPC Electric H05V-U, H05V-R, and H05V-K cables are widely applied in internal wiring for control cabinets, electrical appliances, lighting circuits, and fixed or flexible building installations.

Renewable Energy

Power & Energy Industry

Transport Sector

Real Estate & Construction

Infrastructure & Municipal Industry

Data Centers

Mining and Oil & Gas Industry

Industrial Manufacturer

Technical Advantages

● 30+ years of manufacturing experience
● ISO and UL certified production
● Customized cable and transformer solutions

Conductor Stranded Work Shop

CCV Production Line

CCV production 01

Partical Voltage Test Labtoary

Auto-Winding Machine

Oil Chromatography Test Machine

Auto-core cutting machine

Basic Insulation Level Test Labtoary

Auto Laser Cutting Machine

Automatic Desanding Machine

Automatic Dryer Machine

Product Packaging

Wires and Cables packaging (1)

Wires and Cables packaging (2)

Wires and Cables packaging (3)

Wires and Cables packaging (4)

Wires and Cables packaging (5)

Wires and Cables packaging (6)

Wires and Cables packaging (7)

Wires and Cables packaging (8)

Related Products

FAQ From Customers

What are the advantages of power cables and overhead lines?

(1) Reliable operation, because it is installed in a hidden place such as underground, it is less damaged by external forces, has less chance of failure, and the power supply is safe, and it will not cause harm to people;
(2) The maintenance workload is small and frequent inspections are not required;
(3) No need to erect towers;
(4) Help improve power factor.

Which aspects should be considered when choosing the cross section of a power cable?

(1) The long-term allowable working current of the cable;
(2) Thermal stability once short circuited;
(3) The voltage drop on the line cannot exceed the allowable working range.

What are the measures for cable fire prevention?

(1) Use flame-retardant cables;
(2) Use fireproof cable tray;
(3) Use fireproof paint;
(4) Fire partition walls and fire baffles are installed at cable tunnels, mezzanine exits, etc.;
(5) Overhead cables should avoid oil pipelines and explosion-proof doors, otherwise local pipes or heat insulation and fire prevention measures should be taken.

What should be paid attention to during the transportation and handling of cables?

(1) During transportation, loading and unloading, cables and cable reels should not be damaged. It is strictly forbidden to push the cable reels directly from the vehicle. Generally, cables should not be transported and stored flat.
(2) Before transporting or rolling the cable reel, ensure that the cable reel is firm, the cable is wound tightly, the oil pipe between the oil-filled cable and the pressure oil tank should be fixed without damage, the pressure oil tank should be firm, and the pressure indication should meet the requirements.

What inspections should be carried out for the acceptance of cable lines?

(1) The cable specifications should meet the regulations, the arrangement should be neat, no damage, and the signs should be complete, correct and clear;
(2) The fixed bending radius of the cable, the related distance and the wiring of the metal sheath of the single-core power cable should meet the requirements;
(3) The cable terminal and the middle head should not leak oil, and the installation should be firm. The oil pressure of the oil-filled cable and the meter setting should meet the requirements;
(4) Good grounding;
(5) The color of the cable terminal is correct, and the metal parts such as the bracket are completely painted;
(6) There should be no debris in the cable trench, tunnel, and bridge, and the cover should be complete.

How many projects can cable engineering be divided into?

(1) Construction site transportation: including the loading and unloading, transportation and empty vehicle return journey of engineering materials from the warehouse to the construction site.
(2) Local engineering: including road excavation, tunnel, trench construction, etc.
(3) Laying engineering: including laying, intermediate head production, lift cover plate, buried pipe, school tide, tractor head production, etc.
(4) Two-end engineering: including the production and installation of support, suspension bridge and its foundation, the production of terminal heads, the installation of oil pressure and signal devices, and the electrical performance testing of various types.
(5) Stopping works: including the production of oil-filled cable stop heads, the installation of fuel supply tanks, automatic drainage and signal devices, etc.
(6) Grounding engineering: including installation of insulation joints, transposition boxes, protectors, and grounding boxes.

What tests and inspections should be carried out on power cables before laying?

Before laying, check whether the type, specification and length of the cable meet the requirements and whether there is external force damage. Low-voltage cables use a 1000V megohmmeter to remotely measure the insulation resistance, and the resistance is generally not less than 10MΩ. High-voltage cables use a 2500V megger to measure the resistance. Generally not less than 400MΩ.

What are the factors that determine the long-term allowable current carrying capacity of the cable?

(1) The long-term allowable working temperature of the cable;
(2) The heat dissipation performance of the cable itself;
(3) The condition of the cable installation and the heat dissipation conditions of the surrounding environment.

According to the difference of insulation and protective layer, what are the main types of commonly used low-voltage power cables?

(1) Oil-impregnated paper insulated lead-clad (or aluminum-clad) power cable;
(2) Non-drip oil-impregnated paper insulated power cable;
(3) PVC insulated and sheathed power cable;
(4) Cross-linked PVC insulated and PE sheathed power cable;
(5) Cross-linked PVC insulated and sheathed power cable;
(6) Rubber insulated power cables.

What are the requirements for the fire blocking of cable holes?

For larger cable penetration holes, such as the cable penetration floor, etc., when using fireproof blocking materials to block, according to the actual situation, first coat four to six layers of fireproof paint on the cable surface, the length is about 1.5m below the hole, and then use fire-resistant The material is processed into a board-supporting fire-proof blocking material with a certain strength to ensure that it is firm after being blocked and is easy to disassemble and assemble when the cable is replaced. The plugging is dense and non-porous to effectively block smoke and fire.

What are the main properties of the insulation material of the power cable?

(1) High breakdown strength;
(2) Low dielectric loss;
(3) Very high insulation resistance;
(4) Excellent discharge resistance;
(5) It has certain flexibility and mechanical strength;
(6) Long-term insulation performance is stable.

What are the regulations for cable protection tubes?

(1) When the cable needs to be laid through a protective pipe, the inner diameter of the pipe should not be less than 1.5 times the outer diameter of the cable, and the inner diameter of the concrete pipe, clay pipe, asbestos, and cement pipe should not be less than 100mm;
(2) The bending radius of the cable tube should meet the requirements of the bending radius of the cable inserted;
(3) Each pipe should not exceed three elbows at most, and there should be no more than two right-angle bends.

How to measure the outer diameter of the cable sheath?

At five evenly distributed points on the circumference of the sheath, measure the outer diameter of the sheath and its average value. The average outer diameter is the outer diameter of the sheath.

How to connect copper core cables with different cross-sections?

Copper core cables with different cross-sections can be connected by open-back weak copper pipes and connected by soldering, or pure copper rods can be connected into copper pipes according to different cross-sectional requirements and connected by crimping.

What are the insulating materials used to make cable terminal heads or intermediate joints?

There are insulating glue, insulating tape, insulating tube, insulating gloves, insulating resin, etc.

1 2 3

Welcome your inquiry

Honesty, Integrity, Frugality, Activeness and Passion

H05V-U H05V-R H05V-K

Construction

Conductor

Insulation

Color of insulation

Technical Specifications

Quality Control

Raw Material Test

Process inspection

Finished Product

Application

Technical Advantages

Conductor Stranded Work Shop

CCV Production Line

CCV production 01

Partical Voltage Test Labtoary

Auto-Winding Machine

Oil Chromatography Test Machine

Auto-core cutting machine

Basic Insulation Level Test Labtoary

Auto Laser Cutting Machine

Automatic Desanding Machine

Automatic Dryer Machine

Product Packaging

Related Products

6 Chola Aluminum Conductor Quadruplex Overhead Service Drop Cable

NS75/NS90 Quadruplex Unjacketed Overhead Neutral Supported Cable

(N)TSCGECEWOU 1.8/3kV, 3.6/6kV and 6/10kV ATB (Ground Check Conductor)

NTSCGECECWOU 8.7/15kV and 12/20kV Cable

NA2XSY Medium Voltage Power Cable(6/10kV, 12/20kV, 18/30kV)

H07RN-8-F EN 50525-2-21 Flexible Rubber Cable

FAQ From Customers

Welcome your inquiry