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Product

instrumentation cable series1N22 · 1N32 · 1N38API RP 9B Wireline21 to 62 kN Breaking Load

Mono Conductor Wireline1N22 (7/32"), 1N32 (5/16") & 1N38 (3/8") mono-conductor double-armoured wireline logging

Mono Conductor Wireline (1N22, 1N32 & 1N38) cased-hole electromechanical logging and perforating cable with a stranded tinned-copper conductor, polypropylene/ETFE/PFA high-temp dielectric, and torque-balanced double contra-helical.

Torque-Balanced Armour
140 MPa Downhole Pressure
Brine & Hydrocarbon Rated
API RP 9B
Order designation
1N32-GIPS (5/16")
Outer Ø
8.08 mm
Weight in air
280 kg/km
Breaking strength
44.0 kN
Conductor DC R
14.1 Ω/km
All sizes (6)
Request a quoteDatasheetWhatsApp
Engineering reply in 2 business hoursCut-to-length export drumsEN 10204 3.1 certificate per drum
Standard
API RP 9B
Oilfield wireline specification
Standard sizes
7/32" · 5/16" ·
5.66 mm (1N22) to 9.55 mm (1N38)
Breaking load
21.4 to 62.3 kN
GIPS / UHS contra-helical armour
Voltage rating
600 to 1,200 V D
Tool power + Manchester telemetry
Capacitance
125 to 170 pF/m
Core to armour return
Temperature
Up to +260 °C
PP (+105°C) / ETFE (+165°C) / PFA

Typical values for this cable type, based on API RP 9B / ASTM A475 (GIPS/UHS) / NACE MR0175 — confirmed in the datasheet and quotation for your order.

Application fit

Is Mono Conductor Wireline right for your machine?

Industry-standard mono-conductor electromechanical wireline for cased-hole production logging (PLT), gamma/CCL depth correlation, plug setting and shaped-charge perforating.

Drilling jumbo & rotary mast feed

Suitable

Runs through grease-injection pressure control heads and wellhead sheaves up to 8,000 m depth.

Vertical / spreader reel

Suitable

Preformed, stress-relieved contra-helical armour layers eliminate birdcaging and untwisting under vertical load.

Immersion & wet locations

Suitable

Withstands up to 140 MPa (20,000 psi) hydrostatic wellbore pressure and completion brines.

Energy chain / drag chain

Not suitable

High-tensile bare steel downhole wireline; not for industrial cable drag chains.

Use Enviro-Lite Hybrid E-Line
Typical machinesCased-Hole Perforating & Plug SettingProduction Logging (PLT) & Cement Bond (CBL)Coiled Tubing Internal E-Line StringsGeothermal & Deep Water-Well LoggingDownhole Camera & Memory-Tool Readout

Construction

Layer by layer

Mono Conductor Wireline (1N22 / 1N32 / 1N38) showing compacted tinned copper centre conductor, extruded Polypropylene / ETFE / PFA dielectric, and inner + outer contra-helically stranded GIPS/UHS galvanized steel armour wires.

1234
Schematic, not to scale — generated from the layer data
#LayerMaterial & reference
1Compacted tinned copper centre conductor7-strand or 19-strand compacted tinned annealed copper wire (18 AWG to 12 AWG) with void-filling corrosion inhibitorPrevents longitudinal downhole gas migration along strands
2High-pressure downhole dielectricCopolymer Polypropylene (-40 to +105 °C), ETFE (-55 to +165 °C), or PFA fluoropolymer (-55 to +260 °C)≥ 15,000 MΩ·km insulation resistance @ 500 V DC
3Inner helical GIPS / UHS armour layer12 to 18 galvanized improved plow steel (GIPS) or ultra-high-strength (UHS) wires (right-hand lay)Preformed & stress-relieved for torque balance
4Outer contra-helical GIPS / UHS / Alloy armour18 to 24 contra-helical GIPS/UHS galvanized steel wires (or 27-7MO super-austenitic stainless for sour H₂S)Serves as tensile load bearer and electrical ground return

1N22 (7/32 in · 5.66 mm)

Compact cased-hole & coiled-tubing mono-cable (21.4 kN GIPS / 25.8 kN UHS breaking load)

1N32 (5/16 in · 8.08 mm)

Workhorse cased-hole logging & perforating mono-cable (44.0 kN GIPS / 53.4 kN UHS breaking load)

1N38 (3/8 in · 9.55 mm)

Heavy-duty deep-well perforating & fishing mono-cable (62.3 kN GIPS / 73.0 kN UHS breaking load)

Technical data

Ratings & operating limits

Typical values: Typical values for this cable type, based on API RP 9B / ASTM A475 (GIPS/UHS) / NACE MR0175. Values for your order are confirmed in the datasheet and quotation.

Electrical

Voltage rating
600 V DC (1N22) · 1,000 V DC (1N32) · 1,200 V DC (1N38)
Conductor DC resistance
29.5 Ω/km (1N22) · 14.1 Ω/km (1N32) · 9.2 Ω/km (1N38)
Armour DC resistance
13.5 Ω/km (1N22) · 6.2 Ω/km (1N32) · 4.4 Ω/km (1N38)
Capacitance @ 1 kHz
125 to 170 pF/m (conductor to armour)
Insulation resistance
≥ 15,000 MΩ·km @ 500 V DC

Thermal

Temp rating (N = Polypropylene)
-40 °C to +105 °C (+220 °F)
Temp rating (Q = ETFE)
-55 °C to +165 °C (+330 °F)
Temp rating (T = PFA)
-55 °C to +260 °C (+500 °F)

Mechanical

Nominal breaking strength
21.4 kN (1N22) · 44.0 kN (1N32) · 62.3 kN (1N38)
Stretch coefficient
1.35 m/km/kN (1N22) · 0.65 m/km/kN (1N32) · 0.45 m/km/kN (1N38)
Min. sheave diameter
280 mm (11" on 1N22) · 355 mm (14" on 1N32) · 455 mm (18" on 1N38)

Resistance

Max. hydrostatic pressure
140 MPa (20,000 psi) downhole rating
Corrosion protection
Hot-dip galvanized GIPS + internal corrosion-inhibitor flood
Sour gas option
NACE MR0175 Alloy 27-7MO / MP35N armour option

Reference standards

Wireline standard
API RP 9B Application, Care & Use of Wire Rope
Sour service standard
NACE MR0175 / ISO 15156 (Alloy variant)
RoHS & REACH
2011/65/EU & EC 1907/2006 compliant

Identification

Industry nomenclature
1 = Mono · N/Q/T = Insulation · 22/32/38 = OD in 1/100"
Customs tariff (HS)
8544.4993
Reel identification
Stamped metal flange plate with length, lot & pull certificate

Sizes

6 standard Mono Conductor Wireline (1N / 1Q / 1T) configurations

Outer diameter, weight in air, breaking strength (GIPS & UHS) and DC resistance for 7/32", 5/16" and 3/8" mono cables.

Dimensions, breaking load & DC resistance
Order designationFractional size & insulationOuter Ø
mm		Weight in air
kg/km		Break load
kN		Cond. DC R
Ω/km		Enquiry
1N (Polypropylene +105 °C) & 1Q/1T (ETFE/PFA +165/+260 °C) Mono Wirelines
1N22-GIPS (7/32")7/32" · PP (+105 °C) · GIPS5.6613521.429.5
1Q22-UHS (7/32")7/32" · ETFE (+165 °C) · UHS5.6613825.829.5
1N32-GIPS (5/16")5/16" · PP (+105 °C) · GIPS8.0828044.014.1
1Q32-UHS (5/16")5/16" · ETFE (+165 °C) · UHS8.0828653.414.1
1T32-UHS (5/16" HT)5/16" · PFA (+260 °C) · UHS8.0829253.414.1
1N38-GIPS (3/8")3/8" · PP (+105 °C) · GIPS9.5539562.39.2
  • Typical values for this cable type; dimensions and weights for your order are confirmed in the quotation.
  • Safe working load (pull limit) is typically 50 % of nominal breaking load; pre-seasoned and prestretched at factory.

Quality & approvals

Testing & inspection

Routine tests on every production length, sample and type tests per batch — documented on an EN 10204 3.1 inspection certificate.

  1. ConductorClass 5 stranding
  2. Spark test100 % in-line
  3. Lay-upCores, earth, fillers
  4. SheathingInner, braid / screen, outer
  5. Electrical testsAC voltage, resistance
  6. DimensionsOD, wall thickness
  7. Inspection documents & dispatchDrum & dispatch
Testing & inspectionTest value / referenceFrequency
Routine tests
100 % DC conductor resistance, 15 GΩ·km IR & 3.0 kV spark testZero insulation pinholes and full electrical continuity over entire 7,500+ m reelEvery manufactured logging reel
Sample tests
Destructive tensile breaking load & torque-rotation testMeets rated kN breaking strength with < 0.5°/m free-end rotation at 50 % loadPer production lot
Hot wellbore autoclave pressure & thermal cycle testStable insulation resistance at 140 MPa and rated temperature (+105/+165/+260 °C)Type qualification

Inspection certificate

Issued with every drum, listing the routine test results for that length.

Product approvals

API RP 9B Wireline StandardNACE MR0175 (Alloy Option)RoHS 2 & REACH Compliant

Company certificates

ISO 9001ISO 14001ISO 45001VDE marks approvalUL / cULCE · LVD / EMC

Marking & supply

Ordering & delivery

Sheath marking

Stamped steel reel tag: TEBAOFLEX 1N32 / 1Q32 WIRELINE LOGGING CABLE
Delivery form
Fumigated wooden drums, steel reels or precision spools
Standard lengths
500 m · 1000 m (or custom cut/spooled lengths)
MOQ
100 m (standard) · 500 m (custom)
Lead time
2–4 weeks ex-works
Incoterms
EXW, FOB, CIF, DAP

Technical documents

Downloads

PDFMono Conductor Wireline – technical datasheet6 sizes · construction, technical data, approvalsXLSXMono Conductor Wireline spec data (Excel)All 6 sizes with dimensions and data, for your BOM or quotation
Revision
2026-10-20
Updated
2026-10-20

FAQ

Questions engineers ask first

Not covered here? Send your drawing — an engineer replies within 2 business hours.

How do the insulation codes 1N, 1Q and 1T differ in downhole temperature and gas resistance?
'1N' uses copolymer Polypropylene rated to +105 °C (+220 °F) for standard cased-hole wells. '1Q' uses cross-linked ETFE fluoropolymer rated to +165 °C (+330 °F) with superior cut-through and sour-gas blister resistance. '1T' uses PFA fluoropolymer rated to +260 °C (+500 °F) for deep hot-hole and geothermal wells.
How is a single-conductor wireline able to both power downhole tools and transmit data?
The central insulated copper conductor carries DC or AC power down to the tool string while superimposed bi-phase (Manchester) or QAM telemetry pulses travel along the same loop using the outer steel wire armour and well casing as the electrical return path.
What continuous splice-free lengths are supplied for logging trucks and offshore skids?
We supply continuous splice-free lengths of 5,000 m, 6,500 m, 7,600 m (25,000 ft) and up to 9,150 m (30,000 ft) on steel logging shipping reels.
When should we choose EcoSeal 2Q37-EHS or 7Q38/7H42/7J46 instead of Mono Conductor Wireline?
Choose EcoSeal 2Q37-EHS when logging high-pressure gas wells where a polymer-encapsulated void-free outer profile is needed to seal inside short grease-injection heads, or choose 7-conductor 7Q38/7H42/7J46 for high-data-rate open-hole imaging tools.

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