JBC Piercing Clamp

Product Overview

The JBC Piercing Clamp is a specialized power line hardware designed for critical hardware component for overhead power line construction, ensuring reliable mechanical and electrical performance. Widely recognized in the industry under alternative names including line fitting, overhead hardware, power fitting, line hardware, this product serves as a critical component in overhead power transmission and distribution systems systems. Suitable for 10kV and below insulated distribution lines, for non-stripped line jumper connection and branch splicing device. Specifications and Technical Parameters#

Advantages

• “Precision manufacturing” — CNC machining and forging processes ensure dimensional accuracy and consistent quality
• “Durable surface treatment” — hot-dip galvanizing per ISO 1461/ASTM A153 provides long-term corrosion protection
• “High mechanical strength” — designed to withstand rated breaking loads with appropriate safety margins
• “Standardized interfaces” — compatible with common insulator, conductor, and support hardware specifications
• “Field-proven reliability” — tested per IEC/GB standards for mechanical and electrical performance

Technical Parameters

Applicable Voltage	Model	Main Wire (mm2)	Branch Wire (mm2)	Main Dimensions (mm)			Bolt Qty	Current Carrying Capacity (A)
				L	B	H
1kV	JBC-1.5~35/1.5~10	1.5~35	1.5~10	25	35	53	1	75
1kV	JBC-10~50/1.5~10	10~50	1.5~10	30	32	49	1	75
1kV	JBC-25~95/1.5~10	25~95	1.5~10	33	39	58	1	75
1kV	JBC-16~95/4~50	16~95	4~50	45	43	74	1	200
1kV	JBC-35~150/6~50	35~150	6~50	45	50	74	1	200
1kV	JBC-16~70/16~70	16~70	16~70	53	52	84	1	250
1kV	JBC-16~120/16~120	16~120	16~120	53	52	84	1	300
1kV	JBC-35~150/35~150	35~150	35~150	52	56	84	1	350
1kV	JBC-70~185/16~95	70~185	16~95	68	73	103	2	330
1kV	JBC-150~240/16~50	150~240	16~50	83	76	103	2	200
1kV	JBC-120~240/25~120	120~240	25~120	79	60	94	2	400
1kV	JBC-95~240/50~150	95~240	50~150	76	78	103	2	450
1kV	JBC-95~240/95~240	95~240	95~240	79	64	94	2	550
10kV	JBC10-25~95/16~70	25~95	16~70	83	68	98	2	270
10kV	JBC10-25~50/25~50	25~50	25~50	94	72	115	2	200
10kV	JBC10-70~120/25~50	70~120	25~50	94	77	115	2	200
10kV	JBC10-70~120/70~120	70~120	70~120	95	79	115	2	400
10kV	JBC10-150~240/70~120	150~240	70~120	95	86	115	2	400
10kV	JBC10-95~240/95~240	95~240	95~240	95	90	115	2	550
10kV	JBC10-150~240/25~50	150~240	25~50	95	86	115	2	200
10kV	JBC10-95~240/16~50	95~240	16~50	83	76	113	2	200
10kV	JBC10-95~240/50~150	95~240	50~150	83	86	113	2	450
10kV	JBC10-150~300/35~150	150~300	35~150	83	92	118	2	450
10kV	JBC10-150~300/150~300	150~300	150~300	85	100	136	2	600

Note: Piercing structure, ensures piercing pressure, easy installation. ◆ Different diameter wire connection, wide application range. Sealed structure, anti-corrosion, long service life. ◆ Excellent insulation performance. ◆ Low contact resistance, low temperature rise of clamp. Dimensions may vary slightly based on manufacturing tolerances. Contact our engineering team for custom sizes or special requirements.

Material & Manufacturing

• Material: high-quality carbon steel, cast iron, or aluminum alloy
• Secondary components: hot-dip galvanized finish
• Surface treatment: Hot-dip galvanizing in accordance with ISO 1461 / ASTM A153 / IEC 61589, minimum zinc coating thickness 65 μm
• Manufacturing process: Precision forging, casting, or CNC machining of critical dimensions, followed by full galvanizing immersion. Dimensional accuracy controlled within ±0.5 mm tolerance on mounting interfaces
• Quality assurance: Every batch undergoes dimensional inspection, galvanizing thickness testing (magnetic or gravimetric method per ISO 2178), and visual surface examination. Mill test certificates (MTC) available upon request

Application Scope

• Critical hardware component for overhead power line construction, ensuring reliable mechanical and electrical performance
• Overhead transmission and distribution line construction
• Power grid upgrade and renovation projects
• Industrial and utility pole hardware assembly

Frequently Asked Questions

Q: What materials are used? A: Depending on the product type, materials include carbon steel, malleable cast iron, forged steel, cast aluminum alloy, or copper alloy. All components have hot-dip galvanized or equivalent corrosion protection.

Q: Are custom sizes available? A: We offer non-standard sizes and custom specifications for special project requirements. Contact our engineering team with your drawings or specifications.

Q: What quality certifications do you have? A: Products are manufactured under ISO 9001 certified quality management system. Mill test certificates (MTC) and third-party inspection reports are available upon request.

Industry Standards & Compliance

Standard	Scope
IEC 61589	Galvanizing requirements for overhead line hardware
ISO 1461	Hot-dip galvanized coatings on iron and steel articles
ASTM A153	Zinc coating (hot-dip) on iron and steel hardware
GB/T 2314	General requirements for overhead line fittings
GB/T 2317	Mechanical testing methods for overhead line hardware
DL/T 765.2	Suspension and strain hardware for overhead power lines