JBLY JB PGA JBTY JBTLY Special Shaped Parallel Groove Clamp

Product Overview

The JBLY JB PGA JBTY JBTLY Special Shaped Parallel Groove 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. JBLY, JBTY, JBTLY series special parallel groove clamps are suitable for non-load-bearing splicing and branching of wires in overhead lines, used with insulating cover for insulation protection. ■Specifications and Technical Parameters (JBLY Hangzhou Type)

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

Universal Design Model	Youdu Model	Applicable Conductor (mm2)	Main Dimensions (mm)					Bolt Qty
			L	B	H	R	M
	JBLY-10~70 2-Section	10~70	43	36	45	5	8	2
	JBLY-10~70 3-Section	10~70	63	36	45	5	8	3
	JBLY-35~120 2-Section	35~120	46	45	50	7	10	2
	JBLY-35~120 2-Section Extended	35~120	67	45	50	7	10	2
JBLY-1	JBLY-35~120 3-Section	35~120	67	45	50	7	10	3
	JBLY-50~240 2-Section	50~240	47	63	65	10	10	2
	JBLY-50~240 2-Section Extended	50~240	70	63	65	10	10	2
JBLY-2	JBLY-50~240 3-Section	50~240	70	63	65	10	10	3
	JBLY-120~400 2-Section	120~400	70	74	70	12.5	12	2
	JBLY-120~400 3-Section	120~400	90	74	70	12.5	12	3

Note: Made of high-strength aluminum alloy, no magnetic hysteresis loss. Integrated components, no parts will fall off during installation. ◆ Large arc contact area, wire not easy to creep.

Model	Applicable Conductor (mm2)	Main Dimensions (mm)					Bolt Qty
		L	A	H	R	M
JBLY-16~70 2-Section	10~70	42	36	45	5	8	2
JBLY-35~120 2-Section	35~120	45	47	55	7	10	2
JBLY-35~120 2-Section Extended	35~120	67	47	55	7	10	2
JBLY-35~120 3-Section	35~120	67	47	55	7	10	3
JBLY-50~240 2-Section	50~240	45	63	70	10	10	2
JBLY-50~240 2-Section Extended	50~240	67	63	70	10	10	2
JBLY-50~240 3-Section	50~240	67	63	70	10	10	3

Model	Applicable Conductor (mm2)	Main Dimensions (mm)					Bolt Qty
		L	B	H	R	M
JB-0	16~25	70	37	40	3.5	10	2
JB-1	35~50	78	44	45	5	12	2
JB-2	70~95	112	52	55	7	12	3
JB-3	120~150	138	62	60	8.5	16	3
JB-4	185~240	142	71	65	11	16	3
JB-5	300~400	215	100	80	15.5	20	4
JB-6	500~630	230	110	90	18.5	20	4

Model	Applicable Conductor (mm2)	Main Dimensions (mm)					Bolt Qty
		L	B	H	R	M
PGA-301	10~95	34	54	50	8	8	1
PGA-302	10~95	46	54	50	8	8	2
PGA-502	25~150	50	54	50	8	8	2
PGA-602	50~240	84	66	70	10	12	2
PGA-603	50~240	122	66	70	10	12	3
PGA-803	95~300	133	68	70	11.5	12	3

Model	Applicable Conductor (mm2)	Main Dimensions (mm)					Bolt Qty
		L	B	H	R	M
JBTY-10~70 2-Section	10~70	40	34	45	5	8	2
JBTY-10~70 3-Section	10~70	60	34	45	5	8	3
JBTY-35~120 2-Section	35~120	45	45	55	7	10	2
JBTY-35~120 3-Section	35~120	70	45	55	7	10	3
JBTY-50~240 2-Section	50~240	45	57	65	10	10	2
JBTY-50~240 3-Section	50~240	70	57	65	10	10	3

Model	Applicable Conductor (mm2)	Main Dimensions (mm)					Bolt Qty
		L	B	H	R	M
JBT-00	16~25/16~25	50	35	35	3.5	10	2
JBT-10	35~50/16~25	60	40	35	5/3.5	10	2
JBT-11	35~50/35~50	60	40	35	5	10	2
JBT-21	70~95/35~50	98	50	50	7/5	12	2
JBT-22	70~95/70~95	98	50	50	7	12	2
JBT-31	120~150/35~50	108	62	50	8.5/5	12	3
JBT-32	120~150/70~95	108	62	50	8.5/7	12	3
JBT-33	120~150/120~150	108	62	50	8.5	12	3
JBT-41	185~240/35~50	108	65	50	11/5	12	3
JBT-42	185~240/70~95	108	65	50	11/7	12	3
JBT-43	185~240/120~150	108	65	50	11/8.5	12	3
JBT-44	185~240/185~240	108	65	50	11	12	3

Model	Applicable Conductor (mm2)	Main Dimensions (mm)					Bolt Qty
		L	B	H	R	M
JBTLY-10~70 2-Section	10~70	40	36	40	5	8	2
JBTLY-10~70 3-Section	10~70	60	36	40	5	8	3
JBTLY-35~120 2-Section	35~120	45	48	55	7	10	2
JBTLY-35~120 2-Section Extended	35~120	70	48	55	7	10	2
JBTLY-35~120 3-Section	35~120	70	48	55	7	10	3
JBTLY-50~240 2-Section	50~240	45	60	70	10	10	2
JBTLY-50~240 2-Section Extended	50~240	70	60	70	10	10	2
JBTLY-50~240 3-Section	50~240	70	60	70	10	10	3
JBTLY-185~400	185~400	90	75	75	13.5	12	3

Model	Applicable Conductor (mm2)	Main Dimensions (mm)					Bolt Qty
		L	B	H	R	M
JBTLY-10~70 2-Section	10~70	40	36	40	5	8	2
JBTLY-10~70 3-Section	10~70	60	36	40	5	8	3
JBTLY-35~120 2-Section	35~120	45	48	55	7	10	2
JBTLY-35~120 2-Section Extended	35~120	70	48	55	7	10	2
JBTLY-35~120 3-Section	35~120	70	48	55	7	10	3
JBTLY-50~240 2-Section	50~240	45	60	70	10	10	2
JBTLY-50~240 2-Section Extended	50~240	70	60	70	10	10	2
JBTLY-50~240 3-Section	50~240	70	60	70	10	10	3
JBTLY-185~400	185~400	90	75	75	13.5	12	3

Model	Applicable Conductor (mm2)	Main Dimensions (mm)					Bolt Qty
		L	A	H	R	M
JBTL-00(Flash)	16~25/16~25	50	35	35	3.5	10	2
JBTL-10(Flash)	35~50/16~25	60	40	35	5/3.5	10	2
JBTL-11(Flash)	35~50/35~50	60	40	35	5	10	2
JBTL-21(Flash)	70~95/35~50	98	50	50	7/5	12	2
JBTL-22(Flash)	70~95/70~95	98	50	50	7	12	2
JBTL-31(Flash)	120~150/35~50	108	62	50	8.5/5	12	3
JBTL-32(Flash)	120~150/70~95	108	62	50	8.5/7	12	3
JBTL-33(Flash)	120~150/120~150	108	62	50	8.5	12	3
JBTL-41(Flash)	185~240/35~50	108	65	50	11/5	12	3
JBTL-42(Flash)	185~240/70~95	108	65	50	11/7	12	3
JBTL-43(Flash)	185~240/120~150	108	65	50	11/8.5	12	3
JBTL-44(Flash)	185~240/185~240	108	65	50	11	12	3

Note: 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