WHAT ARE THE UNDERGROUND CABLES?

Underground power cable installation projects will come with specific requirements for each type of control cable and power cable product. Therefore, selecting electrical connection products related to the power system will take a long time. Among the control cables for underground installation projects, our NYY, and NYCY control cables, HELUKABEL Vietnam meets the necessary technical requirements for your projects.

Underground cables play an important role in transmitting large current loads, designed with pure copper conductors, and PVC insulation. The underground cables are often installed inside the wall or deep in the ground, so this is the difference between underground cables and ordinary cables. Some underground cables will be equipped with metal armor such as galvanized steel to protect the internal structure of the cable, avoiding impact leading to damage from external agents. The underground power cables have 2 or 4-core are commonly selected.

Among the power and control cables dedicated to underground installations, our NYY control cable from HELUKABEL is a product that fully meets the technical requirements, having met the national VDE standard.

Technical data of NYY control cable

• Power and control cable to DIN VDE 0276 part 603, HD 603 S1 and IEC 60502, 7 core and above to DIN VDE 0276 part 627, HD 627 S1 and IEC 60502

• Temperature range

flexing -5°C to +50°C

fixed installation -40°C to +70°C

• Permissible operating temperature at conductor +70°C

• Permissible short circuit temperature (short circuit duration max. 5 s)

≤ 300 mm² +160°C

> 300 mm² +140°C

• Nominal voltage U0/U 0,6/1 kV

• Test voltage 4 kV

• Max. permissible tensile stress with cable grip at conductor 50 N/mm²

• Minimum bending radius

single-core 15x cable Ø

multi-core 12x cable Ø

Cable structure of NYYY control cables

• Bare copper-conductor, to DIN VDE 0295 cl.1 or cl.2, single-wire or multi-wire, BS 6360 cl.1 or cl.2, IEC 60228 cl.1 or cl.2

• Core insulation of PVC compound type DIV4 to HD 603 S1

• Core identification to DIN VDE 0293-308, 0276 part 603

• Core colour for 3+½ conductor

J-version: GN-YE (½), BN, BK, GY

O-version: BU (½), BN, BK, GY

• Cores stranded in concentric layers

• Outer sheath of PVC compound type DMV5 to HD 603 S1

• Sheath colour black

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Application

NYY control cables are used for power supply, usually installed outdoors, in the ground, underwater, under concrete, indoors, in cable ducts, power stations, for industry... places no mechanical damage occurs.

Power cable, 0,6/1kV, VDE approved, with concentric copper conductor

Technical data of NYCY control cable

• Power and control cable to DIN VDE 0276 part 603, HD 603 S1 and IEC 60502, 7 cores and above to DIN VDE 0276 part 627, HD 627 S1 and IEC 60502.

• Temperature range

flexing -5°C to +50°C

fixed installation -40°C to +70°C

• Permissible operating temperature at conductor +70°C

• Permissible short circuit temperature (short circuit duration max. 5 s) +160°C

• Nominal voltage U0/U 0,6/1 kV

• Test voltage 4 kV

• Max. permissible tensile stress with cable grip at conductor 50 N/mm²

• Minimum bending radius

single-core 15x cable Ø

multi-core 12x cable Ø

Cable structure

• Bare copper-conductor, to DIN VDE 0295 cl.1, single-wire, BS 6360 cl.1, IEC 60228 cl.1

• Core insulation of PVC compound type DIV4 to HD 603 S1

• Core identification to DIN VDE 0293-308

• Cores stranded in concentric layers

• Filling compound

• Concentric conductor in the inner layer of round copper wires, outer layer with copper tape

• Concentric conductor in the inner layer of round copper wires, outer layer with copper tape

• Sheath colour black

Application

NYCY power and control cables are intended for power and signal supply, used for many industries and distribution boards, power stations, house connecting boxes, and systems traffic lights. At the same time, the product also has the role of control and data testing. These cables are typically installed outdoors, underground, underwater, in concrete, indoors, and cable ducts. The concentric conductor (C) is allowed to use as PE-, PEN-conductor, or as the screen.

Power cables require cables made of materials that are resistant to interference and are not affected by underground agents. If you are looking for specialized products for the underground environment, you can refer to 2 signal cable types such as NYY and NYCY cables. In addition, if you need more specific advice on electrical cable products and accompanying accessories or technical requirements in the project, please contact our engineers for assistance as soon as possible.

For more information, please contact:

HELUKABEL® Vietnam

905 Nguyen Kiem Street, Ward 3, Go Vap District, Ho Chi Minh City 700000, Vietnam

Tel. +84 28 77755578 | info@helukabel.com.vn | www.helukabel.com.vn

SCHEDULE A MEETING WITH OUR ENGINEERS HERE!

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