1 kV Insulation Piercing Grounding Clamp - JJCD Series
1 kV Insulation Piercing Grounding Clamp - JJCD Series - Image 2
1 kV Insulation Piercing Grounding Clamp - JJCD Series - Image 3
1 kV Insulation Piercing Grounding Clamp - JJCD Series - Image 4

1 kV Insulation Piercing Grounding Clamp – JJCD Series

Key Features – 

  • Conductor Range: Main 16–240 mm² / Branch 16–240 mm²

  • Tightening Torque: The Fuse nut ensures precise torque for a secure connection

  • Service Condition: 400/600V, 50/60Hz, -10°C to 55°C

  • Suitable for Aluminum and Copper Conductors

  • Voltage Rating: 1 kV

  • Waterproof and UV-Resistant Design

  • Captive Flexible End Caps for Reliable Sealing

  • Shear-Head Bolts Ensure Correct Tightening Torque (1 or 2 bolts depending on model)

  • Maintenance-Free and Corrosion-Resistant

  • Operating Temperature: -55°C to +55°C

  • Installation Temperature: -20°C to +55°C

  • Compatible with XLPE, PE, or PVC Insulated Conductors

  • Can Be Installed on an Energized Main if Not Under Load

Category: Tags: , , , , , , , ,

The Telexc JJCD Grounding Series Insulation Piercing Clamps are engineered to provide safe, reliable, and maintenance-free grounding connections for overhead insulated conductors. These clamps are widely used in distribution networks for grounding protection, temporary electrical inspection, and earthing of ABC conductors. Their design ensures that installers achieve a controlled, secure connection without stripping cable insulation.

The 1 kV JJCD Grounding Clamps are designed for low-voltage overhead insulated conductors used in residential and commercial distribution lines.
These clamps offer safe grounding during electrical maintenance, fault protection, and temporary inspection.

Standard Compliance: NFC 33-020, IEC 61284, EN 50483-4, IRAM 2435, ANSI C119.5

Construction & Materials 

Piercing Blades
• Tin-plated high-conductivity copper or aluminium alloy
• Provides reliable, low-resistance piercing contact

Connector Body
• Thermoplastic polyamide 66 (PA66) reinforced with fiberglass
• High mechanical strength, UV-resistant, flame-retardant, and weatherproof

Connecting Bridge
• Tinned copper, tinned brass, or aluminium
• Ensures stable electrical continuity for Cu–Cu, Al–Al, or Cu–Al combinations

Sealing & Environmental Protection
• Flexible PVC sealing caps for complete watertight protection
• Internal silica-gel grease prevents moisture entry and improves long-term reliability

Hardware Assembly
• Bolts: Hot-dip galvanized steel, Grade 8.8
• Washer and Nut: Hot-dip galvanized steel
• Fuse Nut: High-strength zinc alloy for controlled torque shearing

Performance & Reliability

• Rated for 1 kV overhead insulated systems
• UV-resistant, glass-fiber-reinforced polymer body
• Bimetallic contact teeth suitable for both aluminum and copper
• Watertightness tested at 6 kV for 30 minutes
• Safe live-line installation using potential-free bolts

How They Work

• When the bolts are tightened, the contact teeth pierce the cable insulation and form a consistent electrical connection.
• Shear-head nuts guarantee the correct torque.
• No conductor stripping is required, reducing installation time and safety risks.

Installation Guide (JJCD Grounding Series)

  1. Prepare the Conductor
    • Ensure the insulated conductor is clean and free from surface contaminants.
    • No stripping of insulation is required.

  2. Open the Clamp
    • Loosen the bolts until the conductor can be inserted freely into the connector slot.
    • Verify that the earthing ring (for 10 kV models) is properly aligned.

  3. Insert the Conductor
    • Position the main insulated conductor inside the clamp channel.
    • Ensure the cable is fully seated and correctly aligned with the piercing blades.

  4. Tighten the Bolts
    • Begin tightening the bolts evenly using a suitable wrench.
    • Continue tightening until the shear-head bolts break off automatically, indicating correct torque application.

  5. Verify Contact and Sealing
    • Ensure the clamp is fully closed and the piercing blades have established proper electrical contact.
    • Confirm that sealing caps are securely in place to maintain waterproofing.

  6. Final Safety Check
    • Inspect the connection for proper alignment, tightness, and insulation integrity.
    • Ensure grounding leads and accessories are attached according to system requirements.

  7. Commissioning
    • Once installation is confirmed, the grounding clamp is ready for operational use in temporary grounding, maintenance work, or system inspection.

Technical Parameters (1 kV)


Model

Equivalent Model

Voltage (kV)

Wire Range (mm²)

A (mm)

B (mm)

H (mm)

Current (A)

Bolts

Piercing Depth (mm)

TX1-95/16

JJCD1-16-95

1

16–95

120

103

80

214

1

3–4

TX1-120/35

JJCD1-35-120

1

35–120

120

103

80

316

2

3–4

TX1-150/50

JJCD1-50-150

1

50–150

120

103

80

316

1

3–4

TX1-185/95

JJCD1-95-185

1

95–185

125

103

110

276

1

3–4

TX1-240/150

JJCD1-150-240

1

150–240

125

103

110

276

1

3–4

Applications

Telexc JJCD Series grounding clamps are engineered for secure, insulated grounding connections in 1 kV and 10 kV overhead distribution systems. They ensure safe temporary earthing, fault protection, and inspection operations across multiple utility environments, including:

1 kV and 10 kV Overhead Distribution Lines
Provides reliable grounding points for insulated ABC conductors during maintenance, repairs, or system isolation.

Temporary Electrical Inspection and Testing
Enables safe and stable test grounding when performing diagnostic checks or system verification.

Utility Maintenance and Emergency Operations
Used for creating rapid grounding paths during fault clearing, planned outages, or troubleshooting activities.

Substation and Pole-Top Grounding Work
Supports safe operations on poles, transformers, switches, and connection points requiring secure temporary earthing.

Industrial and Commercial Power Networks
Suitable for grounding insulated feeder cables in industrial plants, commercial buildings, and infrastructure networks.

Safety Protection in Live-Line Environments
Ensures reliable insulation piercing and consistent grounding without conductor stripping, enhancing operator safety during energized work.

Product Advantages

Quick Grounding Connection
Provides fast, secure grounding without stripping conductor insulation, allowing safe and efficient installation during maintenance or testing.

Stable Mechanical and Electrical Performance
Delivers consistent grounding pressure through optimized bolt design, ensuring reliable, low-resistance contact for both 1 kV and 10 kV systems.

Enhanced Operational Safety
Fully insulated, waterproof construction prevents accidental contact with energized components, supporting safe grounding procedures in live-line environments.

Corrosion-Resistant, Long-Life Materials
Manufactured with tin-plated copper/aluminum blades and reinforced PA66 body for durability, oxidation resistance, and stable performance under harsh conditions.

UV-Resistant and Weatherproof Design
Engineered to withstand sunlight, rain, humidity, and temperature variations, making it suitable for long-term outdoor use on distribution networks.

Maintenance-Free Grounding Solution
Designed for repeated field use without degradation, lowering operational downtime and reducing long-term maintenance costs for utility crews.

FAQs – JJCD Series 

1. What is the JJCD grounding clamp used for?
It is used to create a safe, reliable grounding connection on LV insulated conductors without stripping the insulation.

2. What voltage rating does the JJCD clamp support?
It is designed for 1 kV LV distribution networks.

3. Do I need to strip the cable insulation before installation?
No. The clamp pierces the insulation automatically using its metal teeth.

4. How is correct torque ensured?
The clamp includes a shear-head bolt that breaks at the preset torque, guaranteeing a proper, consistent connection.

5. Is the JJCD clamp waterproof?
Yes. The body is fully insulated, sealed, and moisture-resistant to ensure safe operation in outdoor environments.

6. Is it compatible with both copper and aluminum conductors?
Yes. It uses tin-plated bimetallic teeth, making it suitable for Cu and Al conductors.

7. Can it be used in harsh weather conditions?
Yes. The housing is UV-resistant, flame-retardant, and corrosion-resistant.

8. Does the clamp require periodic maintenance?
Minimal to none. It is designed for maintenance-free, long-term service.

9. What standards does the JJCD clamp comply with?
NFC 33-020, ANSI C119.5, IEC 61284, EN 50483-4, IRAM 2435.

10. What tools are required for installation?
A standard socket or wrench is sufficient for tightening the shear-head bolt.

Our Services

  • Rich experience in ODM & OEM production

  • Excellent one-stop solution for telecom and power hardware

  • High-quality precision casting and forging capabilities

  • Factory-direct pricing with fast delivery

  • Strict quality control and inspection at every stage

  • Warm welcome to visit our factory for cooperation opportunities

About Us

Telexc is a high-tech enterprise specializing in the manufacturing of hardware equipment for the telecommunications and electric power sectors. With production and sales centers in Tianjin and Hebei, China, our products are successfully operating in over 30 countries and have been trusted in power systems for more than 20 years. We are an approved and certified supplier to major telecom companies worldwide and have earned excellent references from numerous utility departments. Our facilities are equipped with modern machinery, advanced testing equipment, and a skilled engineering team.

Telexc is certified under:

  • ISO 9001 (Quality Management)

  • ISO 14001 (Environmental Management)

  • ISO 45001 (Occupational Health & Safety)

With innovation, reliability, and customer satisfaction at our core, Telexc continues to lead the way in transmission and telecommunication line hardware manufacturing.

Why Choose Telexc JJCD Series for 1 kV/10kV Insulation Piercing Grounding Clamps

Reliable Grounding Performance
Engineered for secure, low-resistance grounding connections on LV insulated conductors, ensuring dependable network protection.

True No-Strip Technology
Provides direct insulation piercing without cutting or stripping cable insulation, reducing installation time and error risk.

Consistent, Controlled Torque
Equipped with a calibrated shear-head bolt that guarantees uniform tightening for stable and long-lasting connections.

High Safety Assurance
Fully insulated, waterproof housing prevents accidental contact with live parts and maintains electrical safety in all conditions.

Durable Bimetal Construction
Tin-plated copper/aluminum teeth ensure strong conductivity and full compatibility with both Cu and Al conductors.

Weather and UV Resistant
Designed for outdoor environments with UV-stable, flame-retardant materials that withstand heat, moisture, and corrosion.

Low Maintenance and Long Service Life
Built for maintenance-free operation, reducing downtime, operational effort, and lifecycle costs.

Trusted Compliance
Manufactured according to key international standards, including NFC 33-020, ANSI C119.5, IEC 61284, EN 50483-4, and IRAM 2435.

If you want, I can format this for a website section or product brochure.

Related products