Glass-Fibre Braided Silicone High-Temperature Single-Core Cable up to 8/13.8 kV

This flexible silicone-insulated single-core cable is designed for motors, generators, transformers and other electrical equipment operating at elevated temperatures. Its glass-fibre braid is impregnated with silicone for improved mechanical protection, heat resistance and compatibility with epoxy-resin potting processes. Voltage options extend from 450/750 V to 8/13.8 kV.

Key Highlights

Voltage options up to 8.0/13.8 kV · Flexible Class 5 tinned copper conductor · Silicone insulation · Silicone-impregnated glass-fibre braid · Continuous operation up to +180°C · Short-duration use up to +250°C · Suitable for epoxy-resin potting · Halogen-free · Flame-retardant · RoHS compliant

Application
Construction
Technical Data
Dimensions
Packaging

Recommended for internal wiring and electrical connections requiring flexibility, high-temperature resistance and compatibility with encapsulation materials.

Typical applications include:

Electric motors and generators
Transformers and inductive equipment
Industrial heating systems
Power-generation equipment
High-temperature switchgear
Electrical equipment using epoxy-resin potting
Steel, glass and ceramic processing machinery

The silicone-impregnated surface allows residues from common potting compounds to be removed more easily.

Conductor: Flexible tinned copper strands
Conductor class: Class 5 in reference to IEC 60228
Conductor wrapping: Non-woven tape
Primary insulation: Special heat-resistant silicone
Outer protection: Glass-fibre braid
Impregnation: Special silicone compound
Standard color for 450/750 V version: White
Standard color for 3.8/6.6 kV version: Grey
Standard color for 8.0/13.8 kV version: Black
Other colors and constructions available on request

Available nominal voltages: 450/750 V, 3.8/6.6 kV and 8.0/13.8 kV
Test voltage for 450/750 V cable: 2500 V
Test voltage for 3.8/6.6 kV cable: 15,000 V
Test voltage for 8.0/13.8 kV cable: 30,000 V
Minimum bending radius: 7.5 × cable outer diameter
Fixed operating temperature: −40°C to +180°C
Flexible operating temperature: −25°C to +180°C
Short-duration temperature: Up to +250°C
Glass-fibre braid heat resistance: Up to approximately +400°C
Radiation resistance: Approximately 2 × 10⁷ cJ/kg
Halogen-free performance: In reference to IEC 60754-1
Corrosiveness of combustion gases: In reference to IEC 60754-2
Flame behavior: Flame-retardant and self-extinguishing in reference to IEC 60332-1-2
Compliance: RoHS

Cross-Section	Nominal Voltage	Largest Single Wire Ø (mm)	Approx. Outer Ø (mm)	Copper Weight (kg/km)	Approx. Cable Weight (kg/km)
6 mm²	450/750 V	0.31	5.3	57.6	71
10 mm²	450/750 V	0.41	6.9	96.0	125
16 mm²	450/750 V	0.41	7.9	153.6	179
25 mm²	450/750 V	0.41	10.1	240.0	279
35 mm²	450/750 V	0.41	11.5	336.0	381
50 mm²	450/750 V	0.41	13.1	480.0	548
70 mm²	450/750 V	0.41	15.4	672.0	722
95 mm²	450/750 V	0.51	18.3	912.0	1004
120 mm²	450/750 V	0.51	20.2	1152.0	1221
16 mm²	3.8/6.6 kV	0.41	7.9	153.6	224
25 mm²	3.8/6.6 kV	0.41	10.1	240.0	325
35 mm²	3.8/6.6 kV	0.41	11.5	336.0	434
50 mm²	3.8/6.6 kV	0.41	13.1	480.0	596
70 mm²	3.8/6.6 kV	0.41	15.4	672.0	798
95 mm²	3.8/6.6 kV	0.51	18.3	912.0	1032
120 mm²	3.8/6.6 kV	0.51	20.2	1152.0	1250
10 mm²	8.0/13.8 kV	0.41	11.9	96.0	224
16 mm²	8.0/13.8 kV	0.41	12.9	153.6	286
25 mm²	8.0/13.8 kV	0.41	14.7	240.0	386
50 mm²	8.0/13.8 kV	0.41	17.3	480.0	663
70 mm²	8.0/13.8 kV	0.41	19.6	672.0	870
95 mm²	8.0/13.8 kV	0.51	21.7	912.0	1109

Other voltage ratings, cross-sections and customized dimensions are available on request.

hulk packing

About Hulk Electric

THE FACTORY
BEHIND EVERY METER

Founded in 2007 in Foshan, Guangdong, Hulk Electric has grown from a regional producer into a globally recognised manufacturer of customised industrial cable solutions. Our 10,000㎡ facility runs on Toyota Production System lean principles, operated by 150+ skilled professionals producing over 300,000 metres every month.

Every cable you see on this page — including the HK-TRVV series — is engineered, extruded, tested, and shipped from that single facility. No trading company sits between you and the extrusion line.

20+Years Manufacturing

30+Countries Served

10K㎡Factory Floor

35+Certifications

About Our Factory Talk to an Engineer

Source Factory

Direct manufacturer — no middlemen, no markups. You deal with the engineers who run the line.

Deep Customization

Conductor, shielding, jacket compound, colour coding, certification — built to your exact spec.

7-Day Sampling

Rapid samples for new specifications. 15-day lead time on standard production orders.

Global Compliance

35+ certifications covering UL, CE, TÜV, IEC, RoHS and REACH for every major market.

Common Questions

BEFORE YOU ORDER

For stocked configurations listed in the ordering table, MOQ is 100 metres per specification. Custom configurations — non-standard core counts, jacket colours, or special compounds — carry a 500 metre MOQ. Samples of 5–10 metres are available free of charge for qualification testing.

Use shielded (P or PP suffix) whenever the cable runs alongside servo drives, VFDs, or inverters, or when carrying encoder, sensor, or analogue signals. Unshielded is suitable for pure power distribution and simple on/off control lines. If in doubt, our engineering team can review your cabinet layout and advise — this is included with any quotation.

Yes. Send us the existing part number or a sample and we will produce a cross-reference specification with matching electrical, mechanical, and dimensional characteristics. Most cross-references are turned around within 3 working days, with a physical sample following within 7 days.

Standard shipments include the CE Declaration of Conformity, RoHS and REACH statements, and the batch test report. UL Recognition (UL 2464 / UL 20549) is available on request for North American projects — specify this at the quotation stage as it affects the material specification.

Standard configurations ship in 15 working days from order confirmation. Custom-engineered specifications typically require 20–25 working days, depending on compound availability. Rapid sampling for new specifications is 7 days. We will confirm the exact date in writing with your order acknowledgement.

Get a Quotation

SEND US YOUR
SPECIFICATION

Tell us your core count, cross-section, and application — our engineering team will confirm the right configuration and send pricing within one working day.

Reply within 1 working day

Free samples for qualification

Cross-reference from any brand

Direct factory pricing — no middlemen