POWER TRANSMISSION

ESP power cables

Flat 5 kV ESP power cables for geothermal and oilfield submersible motors. Compare application-specific construction, dimensions and operating limits.

5 kV

3 × 33.5 mm² · 2 AWG

REPN-FX / REPN-QX

GEOTHERMAL POWER CABLES

Two constructions. Clear specifications.

Flat, three-core power cables for submersible motors. Compare the fluoropolymer-sheathed REPN-FX and lead-sheathed REPN-QX constructions for your operating conditions.

5 kV · 3 × 33.5 mm²

REPN-FX

232°C rating

1Copper conductor
2Polyimide composite film + FEP
3FEP sheath
4PET fibre tape
5Stainless steel armour

Maximum overall size 14.1 × 35.7 mm

5 kV · 3 × 33.5 mm²

REPN-QX

204°C rating

1Copper conductor
2Polyimide composite film + EPDM
3Lead sheath
4PET fibre tape
5Stainless steel armour

Maximum overall size 17.4 × 44.5 mm

ESP cable specifications — REPN-FX and REPN-QX
Parameter	REPN-FX	REPN-QX
Cable designation	REPN-FX-5KV	REPN-QX-5KV
Rated voltage	5 kV	5 kV
Conductors	3 × 33.5 mm² / 2 AWG	3 × 33.5 mm² / 2 AWG
Nominal conductor diameter	6.54 mm	6.54 mm
Conductor material	Copper / TU1M07	Copper / TU1M07
Specified temperature rating	232 °C	204 °C
Insulation	Polyimide composite film + FEP	Polyimide composite film + EPDM
Individual core sheath	FEP	Lead
Cushion layer	PET fibre tape, 0.17 mm	PET fibre tape, 0.17 mm
Armour	Stainless steel tape	Stainless steel tape
Armour tape thickness × width	0.5 × 12.7 mm	0.5 × 12.7 mm
Maximum overall size (thickness × width)	14.1 × 35.7 mm	17.4 × 44.5 mm
Maximum conductor DC resistance at 20 °C	0.54 Ω/km	0.54 Ω/km
Minimum insulation resistance at 15.6 °C	5,000 MΩ·km	1,290 MΩ·km

Temperature values are specified cable ratings. Allowable current, fluid compatibility, installation clearance and motor connection must be checked for the complete system. The two constructions have different temperature ratings and are not interchangeable solely because both are rated 5 kV.

QUALITY DOCUMENTATION

Electrical and construction checks.

Batch reports for both cable types record dimensional checks, conductor resistance, insulation resistance, AC and DC voltage tests, and longitudinal gas-leakage tests. Request the applicable documentation with your equipment enquiry.

OIL & GAS POWER CABLES

EPR insulation. Lead-sheathed protection.

Flat, three-core copper cables for oilfield submersible motors. The 5 kV, 50 Hz reference construction has a maximum continuous conductor temperature of 230 °C and two armour options.

5 kV AC · 50 Hz

Galvanized-steel armour

230°C conductor

1Solid copper conductor
2Ethylene propylene rubber (EPR) insulation
3Lead sheath around each insulated core
4Non-woven tape wrapping
5Galvanized steel tape

Fluid compatibility Production-water pH 5.0–8.5

5 kV AC · 50 Hz

Corrosion-resistant armour

230°C conductor

1Solid copper conductor
2Ethylene propylene rubber (EPR) insulation
3Lead sheath around each insulated core
4Non-woven tape wrapping
5Corrosion-resistant steel or Monel alloy

Fluid compatibility Production-water pH 3.0–9.0

Dimensions & conductor sizes

5 kV oilfield cable reference dimensions. Overall size is maximum thickness × width.
Cores × area, mm²	Nominal conductor Ø, mm	Maximum overall size, mm
3 × 10	3.56	12.8 × 33.1
3 × 13.3	4.11	13.5 × 35.1
3 × 16	4.50	13.8 × 36.2
3 × 21.15	5.19	14.5 × 38.3
3 × 25	5.65	14.9 × 39.5
3 × 33.6	6.55	15.8 × 42.4
3 × 35	6.60	15.9 × 42.5

Nominal EPR insulation thickness: 2.0 mm. Nominal lead sheath thickness: 0.85 mm. Dimensions apply to this reference construction; confirm the supplied configuration and installation clearance.

Operating environment

Fluid limits for the 5 kV oilfield reference construction
Parameter	Galvanized-steel armour	Corrosion-resistant armour
Production-water pH	5.0–8.5	3.0–9.0
Maximum hydrogen sulphide	0.01 g/L	1.25 g/L
Maximum hydrostatic pressure	40 MPa	40 MPa
Maximum water content	100%	100%

Additional fluid limits for corrosion-resistant armour

Maximum concentrations for the corrosion-resistant reference construction
Constituent	Maximum, g/L
Carbon dioxide (CO₂)	1.15
Chloride (Cl⁻)	75
Bicarbonate (HCO₃⁻)	1
Calcium (Ca²⁺)	9
Sodium + potassium (Na⁺ + K⁺)	40

Continuous current ratings by temperature

Maximum continuous current in amperes (A), by conductor cross-section and ambient temperature. The 230 °C rating is the conductor limit, not the ambient temperature at full load.

Scroll horizontally to view all columns. Units are shown in the headings or values.

Maximum continuous current (A) — oil well fluid
Ambient °C	10 mm²	16 mm²	21.15 mm²	25 mm²	33.6 mm²	35 mm²
40	118	157	187	207	228	255
60	112	148	177	196	216	241
80	105	139	166	184	202	226
100	98	130	155	171	188	211
120	90	119	142	158	173	194
140	81	108	129	143	157	175
160	72	95	113	126	138	155
170	66	88	105	116	128	143
175	63	84	101	112	123	137
180	60	80	96	106	117	131
200	47	62	74	82	91	101
220	27	36	43	48	52	58
228	12	16	19	21	23	26

Scroll horizontally to view all columns. Units are shown in the headings or values.

Maximum continuous current (A) — gas-air environment
Ambient °C	10 mm²	16 mm²	21.15 mm²	25 mm²	33.6 mm²	35 mm²
40	96	127	151	167	182	204
60	91	120	143	158	173	193
80	86	113	134	148	162	181
100	80	105	125	138	151	169
120	73	97	115	127	139	155
140	66	88	104	115	126	140
160	59	77	92	101	111	124
170	54	72	85	94	103	115
175	52	68	81	90	98	110
180	49	65	77	86	94	105
200	38	51	60	66	73	81
220	22	29	35	38	42	47
228	10	13	15	17	19	21

Request a confirmed current rating for 13.3 mm². Select allowable current for the actual installation and fluid conditions.

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Ambient °C	10 mm²	16 mm²	21.15 mm²	25 mm²	33.6 mm²	35 mm²
40	118	157	187	207	228	255
60	112	148	177	196	216	241
80	105	139	166	184	202	226
100	98	130	155	171	188	211
120	90	119	142	158	173	194
140	81	108	129	143	157	175
160	72	95	113	126	138	155
170	66	88	105	116	128	143
175	63	84	101	112	123	137
180	60	80	96	106	117	131
200	47	62	74	82	91	101
220	27	36	43	48	52	58
228	12	16	19	21	23	26

Ambient °C	10 mm²	16 mm²	21.15 mm²	25 mm²	33.6 mm²	35 mm²
40	96	127	151	167	182	204
60	91	120	143	158	173	193
80	86	113	134	148	162	181
100	80	105	125	138	151	169
120	73	97	115	127	139	155
140	66	88	104	115	126	140
160	59	77	92	101	111	124
170	54	72	85	94	103	115
175	52	68	81	90	98	110
180	49	65	77	86	94	105
200	38	51	60	66	73	81
220	22	29	35	38	42	47
228	10	13	15	17	19	21

Ambient °C	10 mm²	16 mm²	21.15 mm²	25 mm²	33.6 mm²	35 mm²
40	118	157	187	207	228	255
60	112	148	177	196	216	241
80	105	139	166	184	202	226
100	98	130	155	171	188	211
120	90	119	142	158	173	194
140	81	108	129	143	157	175
160	72	95	113	126	138	155
170	66	88	105	116	128	143
175	63	84	101	112	123	137
180	60	80	96	106	117	131
200	47	62	74	82	91	101
220	27	36	43	48	52	58
228	12	16	19	21	23	26

Ambient °C	10 mm²	16 mm²	21.15 mm²	25 mm²	33.6 mm²	35 mm²
40	96	127	151	167	182	204
60	91	120	143	158	173	193
80	86	113	134	148	162	181
100	80	105	125	138	151	169
120	73	97	115	127	139	155
140	66	88	104	115	126	140
160	59	77	92	101	111	124
170	54	72	85	94	103	115
175	52	68	81	90	98	110
180	49	65	77	86	94	105
200	38	51	60	66	73	81
220	22	29	35	38	42	47
228	10	13	15	17	19	21

Ambient °C	10 mm²	16 mm²	21.15 mm²	25 mm²	33.6 mm²	35 mm²
40	118	157	187	207	228	255
60	112	148	177	196	216	241
80	105	139	166	184	202	226
100	98	130	155	171	188	211
120	90	119	142	158	173	194
140	81	108	129	143	157	175
160	72	95	113	126	138	155
170	66	88	105	116	128	143
175	63	84	101	112	123	137
180	60	80	96	106	117	131
200	47	62	74	82	91	101
220	27	36	43	48	52	58
228	12	16	19	21	23	26

Ambient °C	10 mm²	16 mm²	21.15 mm²	25 mm²	33.6 mm²	35 mm²
40	96	127	151	167	182	204
60	91	120	143	158	173	193
80	86	113	134	148	162	181
100	80	105	125	138	151	169
120	73	97	115	127	139	155
140	66	88	104	115	126	140
160	59	77	92	101	111	124
170	54	72	85	94	103	115
175	52	68	81	90	98	110
180	49	65	77	86	94	105
200	38	51	60	66	73	81
220	22	29	35	38	42	47
228	10	13	15	17	19	21