Screened Unarmored Cable

The low-voltage cable with shielding but without armoring has an additional shielding layer outside the insulation, which can effectively reduce external electromagnetic interference and ensure the stable transmission of signals. It is commonly used in places with certain requirements for electromagnetic interference, such as computer network cabling, data transmission systems and the power supply lines for some precision instruments. In these scenarios, external electromagnetic interference may affect signal quality, and the shielding layer can reduce interference and ensure the accuracy and stability of signal transmission.

STANDARD TAXNOMY

Cables are offered accords with different standards, IEC, AS/NZS, NF C, IRAM, SANS, BS, DIN, AIEC, etc.

CONSTRUCTION

Conductor: Copper/aluminum wire, class 2 stranding
Number of Cores: 1, 2, 3, 4, 5, 3+1, 4+1, 3+2
Nominal Cross Sectional Area/mm²: 10-800
Insulation: Optional of Cross-Linked Polyethylene(XLPE), Polyvinyl Chloride(PVC)
Metallic screen: Optional of copper wire, copper tape, aluminum wire
Outer Sheath: Optional of Polyvinyl Chloride(PVC), Polyethylene(PE)

APPLICATION

Suitable for transmission and distribution system with rated voltage up to 0.6/1kV.
When the customer need special function cable, for example water-blocking, water proofing, lame retardant, fire resistant, anti-termites, anti-biting, laying in the river or in the sea, the construction should be further designed.

CHARACTERISTICS

Max. continuous temperature in operation: 90℃
For XLPE insulated cable: 90℃
For PVC insulated cable: 70℃
Max. short-circuit temperature of the conductor (max. duration: 5 seconds): 250℃
Min. installation ambient temperature: 0℃
Permissible pulling force:
For copper conductor: 70N/mm²
For aluminum conductor: 40N/mm²
For aluminum alloy conductor: 55N/mm²
Permissible side pressure: 3000N/m
Permissible bending radius of cable during installation:
For single core cable: 20D
For multi-cores cable: 15D

(Note: D-out diameter of the cable)

Parameter of some products
Type: CU(AL)/XLPE/PVC, CU(AL)/XLPE/PE(LSZH)
Number of Cores：1

Nominal cross section (mm2)	Nom. insulation thick. (mm)	Nom. sheath thick. (mm)	Approx. overall diam. (mm)	Conductor max. DC resistance at 20°C (Ω/km)		Conductor short-circuit current （kA/1s）
Nominal cross section (mm2)	Nom. insulation thick. (mm)	Nom. sheath thick. (mm)	Approx. overall diam. (mm)	Copper	Aluminum	Copper	Aluminum
1.5	0.7	1.4	5.6	12.1	–	0.21	–
2.5	0.7	1.4	6	7.41	–	0.36	–
4	0.7	1.4	6.5	4.61	–	0.57	–
6	0.7	1.4	7	3.08	–	0.86	–
10	0.7	1.4	8	1.83	3.08	1.43	0.95
16	0.7	1.4	9	1.15	1.91	2.29	1.51
25	0.9	1.4	10.6	0.727	1.2	3.58	2.36
35	0.9	1.4	11.6	0.524	0.868	5.01	3.31
50	1	1.4	13	0.387	0.641	7.15	4.73
70	1.1	1.4	15	0.268	0.443	10.02	6.62
95	1.1	1.5	16.7	0.193	0.32	13.59	8.98
120	1.2	1.5	18.4	0.153	0.253	17.17	11.35
150	1.4	1.6	20.5	0.124	0.206	21.46	14.18
185	1.6	1.6	22.7	0.0991	0.164	26.47	17.49
240	1.7	1.7	25.4	0.0754	0.125	34.34	22.69
300	1.8	1.8	27.8	0.0601	0.1	42.93	28.36
400	2	1.9	31.5	0.047	0.0778	57.23	37.82
500	2.2	2	35.1	0.0366	0.0605	71.54	47.27
630	2.4	2.2	39.3	0.0283	0.0469	90.14	59.56
800	2.6	2.3	44.3	0.0221	0.0367	114.47	75.64

Note: The above is only part of the product specifications and technical parameters, if you need detailed parameters, please contact our sales manager.

Annual Purchase in Philippines (Contractor: NGCP)