Mv Line Hardware: Aluminum Cable Suspension Clamp for Overhead Electric Transmission Line

• Customization: Available
• Technics: Aluminum Alloy Casting
• Standard: GB
• Model NO.: CGH-2
• Usage: Substation Fittings, Line Fittings
• Type: Tension Clamp
• Material: Aluminum Alloy
• Applicable Conductor Dia: 7.0~12.4mm
• Rated Failure Load: 40kN
• U Bolt: M16
• Custom Service: OEM&ODM
• Transport Package: Standard Export Package
• Specification: Wire Diameter: 7.0-12.4mm
• Trademark: DKLINE or according to customers requirements
• Origin: Wenzhou, Zhejiang, China
• Production Capacity: 5000PCS/Month
• Package Size: 100.00cm * 90.00cm * 110.00cm
• Package Gross Weight: 558.000kg

Product Description

Product Description

Product Description:

The CGH Aluminum Alloy Cradle-Type Suspension Clamp is a specialized overhead line fitting designed for secure and flexible conductor support in transmission and distribution systems (33kV-500kV). Its unique cradle design evenly distributes mechanical stress, preventing conductor damage while allowing free movement under thermal expansion or wind loads. 

There are two types of overhanging wire clamps: calcined cast iron and aluminum alloy. The former has the disadvantages of hysteresis loss and eddy current loss and heavy product, while the aluminum alloy overhanging wire clamps have the advantages of very little hysteresis loss and eddy current loss, light weight, easy installation and so on. Overhanging wire is sold for installation of aluminum hinged wire or steel core aluminum hinged wire. It can wrap aluminum wrapping tape or wire protection bar outside the wire to protect the wire. The outer diameter of the applicable wire includes wrapping material.

Key Features:

- Curved aluminum alloy body provides 360° conductor protection, reducing point stress by 40% compared to traditional clamps.
- Forged high-strength aluminum alloy (ZL102A) with natural anti-corrosion properties, suitable for coastal/industrial areas.
- Integrated rubber inserts (optional) absorb Aeolian vibrations, extending conductor life.
- Meets IEC 61284, AS/NZS 3560.1, and GB/T 2314 standards.

Applications:
- Extra-High Voltage (EHV) Lines – Preferred for 220kV-500kV projects where conductor protection is critical.
- Mountainous Terrain Installations – Cradle design accommodates frequent angle changes in difficult topography.
- HVDC Transmission Systems – Corrosion-resistant construction suits converter station connections.
- Urban Aesthetic Power Lines – Streamlined appearance ideal for cityscape installations.

Specification

Type	Applicable conductor dia(mm)	Dimensions(mm)					Rated failure load(kN)
		H	L	R	C	M
CGH-2	7.0~12.4	60	146	9	19	16	40
CGH-3	12.4~17.0	65	200	11	22	16	40
CGH-4	19.0~21.5	70	220	12	28	16	40
CGH-5	24.2~33.0	85	250	18	37	16	70
CGH-6	34.0~45.0	90	300	23	48	16	70

Dropout Fuse Cutout

Insulator

Dead End Clamp

Provides overload and short-circuit protection for distribution networks, ensuring reliable power supply.

Used together with suspension clamps to provide reliable insulation and mechanical support for overhead power lines.

Provides uniform gripping force and minimizes conductor mechanical stress.

Company Profile

About us

Baoding Sihedan Electric Technology Co., Ltd. is a professional manufacturer of power systems and transmission and distribution line materials, providing diverse solutions for the global energy sector.

Our product includes Power Systems, such as Reclosers, Air Break Switches, Load Break Switches, SF6 and Vacuum Circuit Breakers, and Current Transformers (CTs) and Voltage Transformers (VTs); Insulators & Surge Protection, including Insulators, Surge Arresters, and Drop-out Fuses; Electric Power Fittings, such as Overhead Line Fittings, Stay Materials, Steel Structures, and Earthing Materials; and Enclosures & Switchgears, including Enclosures and Switchgears, offering a complete range of solutions for transmission, distribution, and industrial power applications.

 

To support our product quality, we provide warranty letters and test reports for all products. Additionally, we offer virtual maintenance services, ensuring timely support and expert guidance for our clients, wherever they are.We have successfully contributed to major domestic and international power projects, earning long-term trust from the State Grid Corporation of China and China Southern Power Grid Company, among other leading organizations.

Main products

Packing & Delivery

FAQ

Q1: Are you a factory or a trading company?
A: We are a professional manufacturer with our own production workshop and complete testing equipment.

Q2:Can you provide samples? Are the samples free?
A: Samples are available, but not free of charge; the sample fee and freight cost shall be borne by the buyer.

Q3:How long is the warranty period of the products?
A: We provide a 1-5 year warranty against manufacturing defects, starting from the date of shipment.

Q4:EPC material design and bulk supply?

A:Yes, we have a strong design team and have been supplying LV and MV EPC materials in bulk for many years.

Q5:Complete documents for tender?

A:Yes, a complete set of documents is ready for submission.

Q6: Can you do OEM with our brand?
A: Yes, we accept OEM customization with your logo, brand, and packaging.

Q7:What kind of packaging do you use for the products?
A: Standard export pallets with waterproof and moisture-proof treatment, suitable for long-distance ocean transportation.

 

Q8: What payment methods do you accept?

A:  1. 30% T/T in advance, 70% T/T against copy of B/L(Bill of Lading)

      2. 30% T/T in advance, 70% by L/C                                                                             

 

Q9: What shipping options do you provide, and what are the typical lead times for delivery? 

A:Sea Freight, and the lead times is about 15-30 days.