Factory-Direct Supply of Certified Wires and Conductors for Diverse Industrial Applications
PVC Insulated Wire (60227 KS IEC 01), 450/750V IV
Voltage: 450/750V, test 2,500V/5min, in-building and electric instrument wiring
Conductor: Annealed copper, Class 1 solid & Class 2 stranded (dual for 1.5-10mm²)
Insulation: PVC/C, 70°C continuous, 160°C/5s short-circuit, 6 colours
Bending: 4 × D, flame per 60227 KS IEC 01
Range: 23 sizes 1.5-400mm², 20-3,820 kg/km, 300m rolls (200m for ≥240mm²)
Insulation Resistance (70°C): 0.011-0.0028 MΩ/km — KS C IEC 60364 thermal leakage data
Standard: KS C IEC 60227-3 (Korean adoption of IEC 60227 Part 3)
Product Overview
PVC Insulated Wire IV (60227 KS IEC 01) 450/750V is the foundational single-core building wire in the Korean electrical installation standard — the standard general-purpose PVC insulated copper wire for in-building wiring and electric instrument connections up to 450/750V. IV = Insulated Vinyl. Manufactured to KS C IEC 60227-3 (Korean national adoption of IEC 60227 Part 3 for general-purpose PVC insulated cables), IV wire is available in both Class 1 solid and Class 2 stranded conductor variants from 1.5mm² to 400mm², with the 1.5-10mm² range available in both classes to suit different termination requirements. The PVC/C insulation compound provides 70°C continuous duty, 2,500V/5min test voltage, and a tight 4×D minimum bending radius — the same compact bending class as European H07V-U/R and Chinese BV/BVR wire of the same voltage class.
IV wire occupies the base tier in the Korean building wire hierarchy: it is the fundamental solid/stranded wire that every Korean electrician specifies for fixed installations — conduit pulls, trunking runs, and equipment connection where the wire, once terminated, remains stationary. Up the hierarchy, KIV (IEC 02) provides Class 5 flexible stranding for panel interiors, HIV (IEC 07) adds 90°C heat-resistant PVC/E for luminaire and appliance wiring, and OW (KS 3331) provides weather-proof outdoor PVC for exposed installations. IV wire's dual-class availability (Class 1 solid for screw terminals, Class 2 stranded for conduit pulls) makes it the most versatile single product in the Korean building wire range — a single specification number covers both conductor types, simplifying procurement and inventory for electrical wholesalers and contractors.
The 23-row parameter table includes a minimum insulation resistance at 70°C column (0.011 MΩ/km for 1.5mm² Class 1 tapering to 0.0028 MΩ/km for 400mm² Class 2) — thermal-state leakage data essential for Korean installations where the hot and humid summer climate elevates insulation leakage current in long conduit runs. Standard reel lengths are 300m for all sizes up to 185mm², transitioning to 200m for the heavy 240-400mm² conductors. After IV, the Korean electrician reaches for KIV where flexibility matters, HIV where heat matters, and OW where weather matters — but every Korean electrical installation starts with IV wire.
Conductor — Soft Copper Stranded Wire, 7-strand concentric lay, exposed on the stripped-end left side
PVC Insulator — Smooth cylindrical PVC/C jacket, 70°C rated, with IV marking printed directly on the insulation surface
Stripped-End View — Left end shows exposed copper strands where insulation has been removed for termination
Class 1 Solid & Class 2 Stranded
Both conductor types from 1.5-10mm². Solid for screw terminals — no strand separation. Stranded for conduit pulls — bends without kinking.
PVC/C Insulation 70°C
Standard PVC/C compound per KS C IEC 60227-3. 70°C continuous, 160°C/5s short-circuit. 2,500V/5min test. 6 standard Korean colours.
4×D Bending + Full Range
4×D minimum bend radius. 23 sizes 1.5-400mm². 300m rolls (≤185mm²), 200m (240-400mm²). Export wooden case & pallet.
70°C Insulation Resistance
0.011-0.0028 MΩ/km — thermal-state leakage current data for Korean humid summer conduit installations per KS C IEC 60364.
IV = Korean H07V-U/R
Structurally identical to H07V-U (solid) and H07V-R (stranded) in EU, BV/BVR in China. KS C IEC 60227-3 = Korean IEC 60227 adoption.
IEC 01 Standard Number
60227 KS IEC 01 = general-purpose PVC insulated wire. The "01" designates the base standard in the Korean IEC 60227 family (01/02/07).
Technical Characteristics
| Nominal Voltage Uo/U | 450/750V |
| Test Voltage | 2,500V AC |
| Temperature Range (in motion) | +5°C to +70°C |
| Short-Circuit Temperature / Time | 160°C / max 5 seconds |
| Min. Bending Radius | 4 × outer diameter |
| Conductor Classes | Class 1 (solid) & Class 2 (stranded), annealed copper — KS C IEC 60227-3 |
| Insulator Material | Polyvinyl Chloride (PVC/C) |
| Flammability | 60227 KS IEC 01 |
Applicable Standard
| Standard | Scope |
|---|---|
| KS C IEC 60227-3 | Korean national standard — adoption of IEC 60227 Part 3 for PVC insulated cables with solid and stranded copper conductors up to 450/750V. Covers IV wire construction, both Class 1 and Class 2 conductors, testing, and marking requirements including the "IV" insulation surface print. |
Korean Building Wire Family — IEC Standard Number Reference
| Type | Standard | IEC Part | Temp | Voltage | Class |
|---|---|---|---|---|---|
| IV | 60227 KS IEC 01 | Part 3 | 70°C | 450/750V | Class 1 & 2 |
| KIV | 60227 KS IEC 02 | Part 5 | 70°C | 450/750V | Class 5 |
| HIV | 60227 KS IEC 07 | Part 7 | 90°C | 300/500V | Class 5 |
| OW | KS 3331 | — | 70°C | 450/450V | Solid & Stranded |
Technical Specifications
Annealed copper conductor per KS C IEC 60227-3. Class 1 = solid wire. Class 2 = stranded wire. PVC/C insulator, 6 standard colours. All sizes single core, 300m standard (200m for 240-400mm²). 23 variants — 10 with overlapping Class 1/2 for 1.5-10mm², 13 Class 2 only for 16-400mm².
| Nominal Area (mm²) | Class | Insulation (mm) | Overall Dia. (mm) | 20°C Res. (Ω/km) | Insul. Res. 70°C (MΩ/km) | Test (V/5min) | Weight (kg/km) | Length (m) |
|---|---|---|---|---|---|---|---|---|
| Class 1 Solid & Class 2 Stranded — Dual Availability (1.5-10mm²) | ||||||||
| 1.5 | 1 | 0.7 | 3.2 | 12.1 | 0.011 | 2,500 | 20 | 300 |
| 1.5 | 2 | 0.7 | 3.3 | 12.1 | 0.010 | 2,500 | 25 | 300 |
| 2.5 | 1 | 0.8 | 3.9 | 7.41 | 0.010 | 2,500 | 35 | 300 |
| 2.5 | 2 | 0.8 | 4.0 | 7.41 | 0.009 | 2,500 | 35 | 300 |
| 4 | 1 | 0.8 | 4.4 | 4.61 | 0.0085 | 2,500 | 50 | 300 |
| 4 | 2 | 0.8 | 4.6 | 4.61 | 0.0077 | 2,500 | 55 | 300 |
| 6 | 1 | 0.8 | 5.0 | 3.08 | 0.007 | 2,500 | 70 | 300 |
| 6 | 2 | 0.8 | 5.2 | 3.08 | 0.0065 | 2,500 | 75 | 300 |
| 10 | 1 | 1.0 | 6.4 | 1.83 | 0.007 | 2,500 | 115 | 300 |
| 10 | 2 | 1.0 | 6.7 | 1.83 | 0.0065 | 2,500 | 120 | 300 |
| Class 2 Stranded Only (16-400mm²) | ||||||||
| 16 | 2 | 1.0 | 7.8 | 1.15 | 0.005 | 2,500 | 170 | 300 |
| 25 | 2 | 1.2 | 9.7 | 0.727 | 0.005 | 2,500 | 270 | 300 |
| 35 | 2 | 1.2 | 10.9 | 0.524 | 0.0043 | 2,500 | 370 | 300 |
| 50 | 2 | 1.4 | 12.8 | 0.387 | 0.0043 | 2,500 | 510 | 300 |
| 70 | 2 | 1.4 | 14.6 | 0.268 | 0.0035 | 2,500 | 685 | 300 |
| 95 | 2 | 1.6 | 17.1 | 0.193 | 0.0035 | 2,500 | 935 | 300 |
| 120 | 2 | 1.6 | 18.8 | 0.153 | 0.0032 | 2,500 | 1,170 | 300 |
| 150 | 2 | 1.8 | 20.9 | 0.124 | 0.0032 | 2,500 | 1,450 | 300 |
| 185 | 2 | 2.0 | 23.3 | 0.0991 | 0.0032 | 2,500 | 1,820 | 300 |
| 240 | 2 | 2.0 | 26.6 | 0.0754 | 0.0032 | 2,500 | 2,305 | 200 |
| 300 | 2 | 2.4 | 29.6 | 0.0601 | 0.0030 | 2,500 | 2,925 | 200 |
| 400 | 2 | 2.6 | 33.2 | 0.0470 | 0.0028 | 2,500 | 3,820 | 200 |
Packaging & Delivery
| Parameter | Standard |
|---|---|
| Package | 300m per roll (≤185mm²), 200m per roll (240-400mm²), export wooden case & pallet |
| Roll Marking | Manufacturer, IV, 450/750V, 60227 KS IEC 01, cross-section, Class, length, weight, batch, KS mark |
| Colour Options | Black, white, red, green, yellow, blue — Korean standard 6-colour palette |
| Outer Protection | Wooden case — standardised across all Korean building wire products |
| Delivery Condition | Factory-new, tested per KS C IEC 60227-3, KS mark certified, test certificate on request |
Typical Applications
IV wire is the foundational building wire for Korean in-building electrical installations — the wire every Korean electrician reaches for first:
In-Building Wiring
Standard 450/750V single-core wire for all Korean building electrical installations — conduit, trunking, and equipment connections.
Electric Instrument Wiring
Internal wiring of electric instruments and equipment up to 450/750V. Class 1 solid for screw terminals, Class 2 stranded for flexible routing.
Distribution Board Wiring
Consumer unit and distribution board internal connections. Dual-Class availability means one product for both rigid busbar connections and flexible branch circuits.
6-Colour Korean Palette
Black, white, red, green, yellow, blue — complete Korean electrical code colour identification per KS C IEC 60445.
Korean Market Foundation
KS C IEC 60227-3 certified with IV printing on insulation — the most widely installed Korean building wire by volume.
Humid Climate Rated
70°C insulation resistance data (0.011-0.0028 MΩ/km) specifically included for Korean monsoon season leakage current calculations.
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Frequently Asked Questions
As a factory, we offer flexible MOQ depending on the cable type. For standard stock items, MOQ is low; for customized specifications, please contact our sales team for a detailed quote.
Yes, Qiangli cables are manufactured in compliance with international standards such as UL, CE, TUV, and VDE. We provide full test reports and certificates upon request.
Absolutely. We have a dedicated R&D team that can customize cable structure, material, color, and printing to meet your specific project needs.
For standard products, lead time is usually 7-15 days. For large-scale project orders or customized products, it typically ranges from 20 to 30 days.
Yes, we provide free samples for most standard cables. You only need to cover the international courier costs. Contact us to arrange your sample shipment.