Name: NTMCGCWOEU / (N)TMCGCWOEU 6-30kV Single-Core EPR Heavy-Duty Rubber Cable
Brand: TEBAOFLEX

Product overview

NTMCGCWOEU is a single-core flexible medium-voltage cable with finely stranded tinned copper, EPR insulation between semi-conductive layers, a tinned copper wire screen and a durable red rubber sheath. It resists oil, weather and electromagnetic interference and works reliably in static service or with occasional movement. In (N)TMCGCWOEU the bracketed (N) marks a design based on the DIN VDE 0250-813 type.

The cable is used for short connections of mobile transformer substations to overhead lines, for mining equipment and heavy mobile machinery, and for outdoor facilities. Dimension tables cover the 3.6/6 kV, 6/10 kV, 8.7/15 kV and 12/20 kV classes from 1×25/16 to 1×400/35, and the rated voltage table runs up to 20/35 kV.

Browse the VDE mining cable category for related cables.

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Application & Features

Selection overview

A mobile transformer substation moves from one site to the next and has to be connected to the overhead line or the site network each time. The connection is short, it is made and broken repeatedly, and it is exposed to rain, sun, frost and mechanical knocks. A single-core flexible rubber cable suits this duty: each phase is light enough to handle, the class 5 conductor bends into the terminal box, and the 5GM5 sheath stands up to outdoor use. The same cable connects transformers, switchgear and drives on mining equipment and heavy mobile machinery.

The temperature limits separate the two kinds of duty: -40 °C to +80 °C ambient in fixed installation, but -25 °C to +60 °C when the cable is used fully flexible. For each size the tables give the minimum bending radius for fixed laying (about 6 times the outer diameter) and for free movement (about 10 times), the maximum tensile load, the current-carrying capacity, the capacitance and the short-circuit current, so cross-section and voltage class can be chosen together.

Mobile transformer substationsShort connections of mobile transformer substations to overhead lines and site networks.
Mining equipmentMedium-voltage connections on mining equipment and heavy mobile machinery that is moved often.
Outdoor facilitiesUnrestricted indoor and outdoor use with ozone, UV and moisture resistance.
Four tabulated voltage classesFull data for 3.6/6, 6/10, 8.7/15 and 12/20 kV from 1×25/16 to 1×400/35.

Bucket-wheel excavators in an open-cast lignite mine, electrically driven mining machines supplied through medium-voltage cables such as NTMCGCWOEU — Bucket-wheel excavators in an open-cast mine run on medium-voltage power. Flexible single-core cables such as NTMCGCWOEU make short connections between mobile transformers, switchgear and machines. Photo: Arne Müseler, CC BY-SA 3.0 de, via Wikimedia Commons.

Specifications

Technical data

Typical NTMCGCWOEU values for the 3.6/6 kV to 12/20 kV classes. The final construction is confirmed on the TEBAOFLEX datasheet issued with your quotation.

Construction, thermal and chemical data

Parameter	Value
Conductor	Tinned annealed copper wires to VDE 0295 or IEC 60228 class 5
Insulation	Ethylene propylene rubber (EPR)
Screen	Spinning of tinned copper wires, cross-section 16 or 25 mm² (35 mm² on 1×400/35)
Outer sheath	Rubber compound 5GM5, red
Max. operating temperature of the conductor	90 °C
Max. short circuit temperature of the conductor	250 °C
Ambient temperature, fixed installation	Min. -40 °C; max. +80 °C
Ambient temperature, fully flexible operation	Min. -25 °C; max. +60 °C
Performance against fire	IEC 60332-1-2
Resistance to oil	IEC 60811-404
Weather resistance	Unrestricted use outdoors and indoors, resistant to ozone, UV and moisture

Rated voltages of (N)TMCGCWOEU cable

Rated voltage Uo/U	Max. permissible operating voltage AC	Max. permissible operating voltage DC
3.6/6 kV	4.2/7.2 kV	5.4/10.8 kV
6/10 kV	6.9/12 kV	9/18 kV
8.7/15 kV	10.4/18 kV	13.5/27 kV
12/20 kV	13.9/24 kV	18/36 kV
14/25 kV	17.3/30 kV	22.5/45 kV
18/30 kV	20.8/36 kV	27/54 kV
20/35 kV	24.2/42 kV	31.5/63 kV

NTMCGCWOEU 3.6/6 kV: dimensions and electrical data

Cores × cross-section	Conductor diameter max. (mm)	Diameter over insulation nom. (mm)	Outer diameter min. (mm)	Outer diameter max. (mm)	Bending radius fixed min. (mm)	Bending radius free moving min. (mm)	Weight (kg/km)	Max. tensile load (N)	Conductor resistance (Ω/km)	Nominal operating capacitance (μF/km)	Current-carrying capacity (A)	Short-circuit current, conductor (kA)
1×25/16KON	6.4	14	20.6	22.1	133	221	820	375	0.795	0.26	178	3.58
1×35/16KON	7.5	15.1	21.5	23	138	230	930	525	0.565	0.29	220	5.01
1×50/16KON	9	16.6	23	24.5	147	245	1110	750	0.393	0.33	275	7.15
1×70/16KON	10.8	18.4	25.1	27.4	164	274	1380	1050	0.277	0.38	340	10.01
1×95/16KON	12.6	20.2	26.9	29.2	175	292	1630	1425	0.21	0.42	409	13.59
1×120/16KON	14.2	21.8	28.5	30.8	185	308	1940	1800	0.164	0.46	479	17.16
1×150/25KON	15.8	23.4	31.4	33.6	202	336	2410	2250	0.132	0.5	549	21.45
1×185/25KON	17.4	25	33	35.2	211	352	2750	2775	0.108	0.54	627	26.46
1×240/25KON	20.4	28.3	37.3	39.5	237	395	3430	3600	0.0817	0.6	734	34.32
1×300/25KON	22.9	30.5	39.5	41.7	250	417	4000	4500	0.0641	0.68	843	42.9

NTMCGCWOEU 6/10 kV: dimensions and electrical data

Cores × cross-section	Conductor diameter max. (mm)	Diameter over insulation nom. (mm)	Outer diameter min. (mm)	Outer diameter max. (mm)	Bending radius fixed min. (mm)	Bending radius free moving min. (mm)	Weight (kg/km)	Max. tensile load (N)	Conductor resistance (Ω/km)	Nominal operating capacitance (μF/km)	Current-carrying capacity (A)	Short-circuit current, conductor (kA)
1×25/16KON	6.4	14.8	19	20.5	123	205	890	375	0.795	0.24	178	3.58
1×35/16KON	7.5	15.9	22.3	23.8	143	238	1000	525	0.565	0.27	220	5.01
1×50/16KON	9	17.4	23.8	25.3	152	253	1190	750	0.393	0.3	275	7.15
1×70/16KON	10.8	19.2	25.9	28.2	169	282	1460	1050	0.277	0.34	340	10.01
1×95/16KON	12.6	21	27.7	30	180	300	1710	1425	0.21	0.38	409	13.59
1×120/16KON	14.2	22.6	30.3	32.6	196	326	2070	1800	0.164	0.42	479	17.16
1×150/25KON	15.8	24.2	32.2	34.4	206	344	2470	2250	0.132	0.46	549	21.45
1×185/25KON	17.4	25.8	33.8	36	216	360	2810	2775	0.108	0.49	627	26.46
1×240/25KON	20.4	29.1	38.1	40.3	242	403	3490	3600	0.0817	0.54	734	34.32
1×300/25KON	22.9	31.6	40.3	42.5	255	425	4150	4500	0.0641	0.59	843	42.9
1×400/25KON	26.2	33	43	46	276	460	5000	6000	0.05	0.66	1024	57.2

NTMCGCWOEU 8.7/15 kV: dimensions and electrical data

Cores × cross-section	Conductor diameter max. (mm)	Diameter over insulation nom. (mm)	Outer diameter min. (mm)	Outer diameter max. (mm)	Bending radius fixed min. (mm)	Bending radius free moving min. (mm)	Weight (kg/km)	Max. tensile load (N)	Conductor resistance (Ω/km)	Nominal operating capacitance (μF/km)	Current-carrying capacity (A)	Short-circuit current, conductor (kA)
1×25/16KON	6.4	17	23.4	24.9	149	249	950	375	0.795	0.2	189	3.58
1×35/16KON	7.5	18.1	24.9	27.1	163	271	1110	525	0.565	0.22	234	5.01
1×50/16KON	9	19.6	26.4	28.6	172	286	1300	750	0.393	0.25	292	7.15
1×70/16KON	10.8	21.4	28.1	30.4	182	304	1550	1050	0.277	0.28	360	10.01
1×95/16KON	12.6	23.2	30.9	33.2	199	332	1880	1425	0.21	0.31	434	13.59
1×120/16KON	14.2	24.8	32.5	34.8	209	348	2200	1800	0.164	0.34	505	17.16
1×150/25KON	15.8	26.4	34.4	36.6	220	366	2610	2250	0.132	0.37	582	21.45
1×185/25KON	17.4	28	37	39.2	235	392	3090	2775	0.108	0.4	664	26.46
1×240/25KON	20.4	31	40	42.2	253	422	3680	3600	0.0817	0.45	781	34.32
1×300/25KON	22.9	33.5	42.2	44.4	266	444	4290	4500	0.0654	0.49	898	42.9
1×400/35KON	26.2	36.8	45.2	48.2	289	482	5290	6000	0.0495	0.55	1074	57.2

NTMCGCWOEU 12/20 kV: dimensions and electrical data

Cores × cross-section	Conductor diameter max. (mm)	Diameter over insulation nom. (mm)	Outer diameter min. (mm)	Outer diameter max. (mm)	Bending radius fixed min. (mm)	Bending radius free moving min. (mm)	Weight (kg/km)	Max. tensile load (N)	Conductor resistance (Ω/km)	Nominal operating capacitance (μF/km)	Current-carrying capacity (A)	Short-circuit current, conductor (kA)
1×25/16KON	6.4	19	25.7	28	168	280	1150	375	0.795	0.18	189	3.58
1×35/16KON	7.5	20.1	26.8	29.1	175	291	1290	525	0.565	0.19	234	5.01
1×50/16KON	9	21.6	28.3	30.6	184	306	1490	750	0.393	0.22	292	7.15
1×70/16KON	10.8	23.4	31.1	33.4	200	334	1750	1050	0.277	0.24	360	10.01
1×95/16KON	12.6	25.2	32.9	35.2	211	352	2110	1425	0.21	0.27	434	13.59
1×120/16KON	14.2	26.8	34.5	36.8	221	368	2400	1800	0.164	0.29	505	17.16
1×150/25KON	15.8	28.4	37.4	39.6	238	396	2910	2250	0.132	0.32	582	21.45
1×185/25KON	17.4	30	39	41.2	247	412	3270	2775	0.108	0.34	664	26.46
1×240/25KON	20.4	33	42	44.2	265	442	3880	3600	0.0817	0.39	781	34.32
1×300/25KON	22.9	34.7	44	47	282	470	4540	4500	0.0654	0.43	898	42.9
1×400/35KON	26.2	39.3	49.4	52.4	314	524	5760	6000	0.0495	0.5	1074	57.2

Selection note: current-carrying capacity depends on the laying and operating conditions, and the short-circuit current depends on the fault duration. Before ordering, ask our engineers to confirm the current rating for your installation, the short-circuit duration behind the kA values, and whether the sheath marking must read NTMCGCWOEU or (N)TMCGCWOEU.

Standards & References

Applicable standards and compliance

Construction and useDIN VDE 0250-813 (construction), DIN VDE 0250-1 (general requirements) and DIN VDE 0298-3 (guide to use).
Electrical and non-electrical testsElectrical tests to DIN VDE 0472-501, 503, 508; non-electrical tests to DIN VDE 0472-401, 402,602, 303, 615.
Fire performanceTests under fire conditions to DIN VDE 0472-803, 804; flame retardant to VDE 0482-332-1-2, DIN EN 60332-1-2 and IEC 60332-1.
Oil and weather resistanceOil resistant to HD/EN/IEC 60811-2-1 and DIN VDE 0473-811-2-1 (IEC 60811-404); unrestricted use outdoors and indoors, resistant to ozone, UV and moisture.
ApprovalsMine approvals, test reports and marking requirements are confirmed and quoted per order.

Construction

Material and build-up

NTMCGCWOEU is a round single-core cable with seven layers from the conductor outward. Semi-conductive layers on both sides of the EPR insulation control the electric field, and the concentric copper wire screen carries charging and fault current; its cross-section is the second figure in the size code, for example 16 mm² in 1×95/16.

Conductor: Tinned annealed copper wires to VDE 0295 or IEC 60228 class 5, from 6.4 mm maximum diameter on 25 mm² to 26.2 mm on 400 mm².
Inner semi-conductive layer: Semi-conductive tape plus a thermosetting compound over the conductor.
Insulation: Ethylene propylene rubber (EPR); the diameter over insulation grows with the voltage class, for 1×95/16 from 20.2 mm at 3.6/6 kV to 25.2 mm at 12/20 kV.
Outer semi-conductive layer: Thermosetting semi-conductive compound over the insulation.
Semi-conductive tape: Tape over the outer semi-conductive layer, under the screen.
Screen: Spinning of tinned copper wires with a cross-section of 16 or 25 mm², and 35 mm² on 1×400/35.
Outer sheath: Rubber compound 5GM5, red. Special versions on request, for example a halogen-free version with a 5GM3 outer sheath.

FAQ

Selection questions

What is the difference between NTMCGCWOEU and (N)TMCGCWOEU?

Both are single-core flexible EPR rubber cables with the same core materials, electrical parameters and environmental resistance. NTMCGCWOEU without brackets refers to the type defined in DIN VDE 0250-813; the bracketed (N) marks a design based on that type. NTMCGCWOEU is the usual choice for heavy-duty mobile machinery, mining equipment and outdoor facilities with frequent movement, while (N)TMCGCWOEU serves standard industrial wiring, stationary equipment and light mobile devices. For a version aimed at frequent movement and high mechanical stress, see (SI) NTMCGCWOEUS.

What does 1×95/16KON mean?

One core with a 95 mm² phase conductor and a 16 mm² concentric screen of tinned copper wires; KON refers to that concentric screen. Sizes up to 120 mm² carry a 16 mm² screen and larger sizes a 25 mm² screen, except 1×400/35 at 8.7/15 kV and 12/20 kV, which has a 35 mm² screen.

Which voltage class do I need?

Choose the rated voltage Uo/U of your system: 3.6/6, 6/10, 8.7/15 or 12/20 kV in the dimension tables, and up to 20/35 kV in the rated voltage table. Each class also has a maximum permissible operating voltage, for example 6.9/12 kV AC and 9/18 kV DC for the 6/10 kV class. Higher classes have thicker insulation, so diameter, weight and bending radius grow with the voltage.

How tightly can the cable be bent?

The tables list the minimum bending radius per size: about 6 times the outer diameter for fixed laying and about 10 times for free movement. For 1×95/16 at 6/10 kV that is 180 mm fixed and 300 mm moving. In fully flexible operation keep to the ambient limits of -25 °C to +60 °C.

What should I send for a quotation?

Send the voltage class, cross-section and screen (for example 1×95/16 at 6/10 kV), the length of each connection, NTMCGCWOEU or (N)TMCGCWOEU marking, the type of duty (fixed, occasional movement or fully flexible), any halogen-free requirement and the approval your site needs. More flexible mining cables are in the VDE mining cable category.

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Request this cable.

Send the voltage class, cross-section, connection lengths, the designation for the marking, the type of duty and any approval requirement.

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Contact directly

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WAWhatsApp+86 156 3992 7303 @Emailinfo@tebaoflexcablegroup.com

NTMCGCWOEU / (N)TMCGCWOEU 6-30kV Single-Core EPR Heavy-Duty Rubber Cable

Application & Features