Product Introduction

L-25-130/450 L-Type HDG Steel Yoke Plate

This L-shaped triangular yoke plate features a nominal breaking load of 250kN and is specifically designed for the parallel connection of dual-string fittings on 35kV high-voltage lines characterized by heavy loads and significant elevation differences. It is suitable for high-voltage trunk lines in mountainous terrain and tension string assemblies for substation lead-ins with large vertical drops. Featuring an integrated, elongated, and heightened structure, it offers superior mechanical strength and is engineered specifically for heavy-load high-voltage lines operating under harsh conditions.

Technical Parameters

Model	Main dimensions(mm)					Nominal breaking load(kN)	Quality(kg)	Material
	H	L	b	Ф	Ф1
L-07-70/400	70	400	16	18	18	70	4.5	Steel
L-07-100/400	100	400	16	18	18	70	5	Steel
L-10-70/400	70	400	16	20	18	100	4.5	Steel
L-12-70/400	70	400	16	24	18	120	4.7	Steel
L-12-100/450	100	450	16	24	18	120	5.8	Steel
L-12-100/500	100	500	16	24	18	120	6.2	Steel
L-25-110/400	110	400	16	30	24	250	7	Steel
L-25-130/450	130	450	16	30	24	250	8.4	Steel

Detailed technical parameters

L-25-130/450 HDG Steel Yoke Plate

Nominal Breaking Load: The product has an ultimate breaking tensile strength of 250kN; the actual operating load allows for a safety margin to meet the long-term tension requirements of heavy-load lines.

Dimensions: A center-to-center height of 130mm and a total length of 450mm accommodate large-spacing string assembly dimensions; the 16mm plate thickness enhances overall resistance to bending and tearing.

Hole Specifications: Enlarged main and side apertures accommodate large-diameter fastening bolts, facilitating the parallel connection of multiple heavy-load fittings and ensuring superior assembly compatibility.

Product Weight: 8.4kg per unit; balances high load-bearing capacity with ease of handling for on-site hoisting and aerial installation.

Detailed technical parameters

Features of the L-25-130/450 L-Type HDG Steel Yoke Plate

Material: Forged from high-toughness, premium structural steel; offers strong resistance to instantaneous impact loads and is resistant to fatigue cracking under long-term cyclic stress.

Manufacturing Process: Formed via integral closed-die forging followed by precision CNC reaming; strict control over hole coaxiality and dimensional tolerances ensures smooth assembly without binding or misalignment under heavy loads.

Corrosion Protection: Treated with heavy-duty hot-dip galvanizing; the coating is thick with strong adhesion, providing resistance to severe coastal salt-spray corrosion and protecting against rust caused by coating damage from external impacts.

Standards: Complies with GB/T2314 and GB/T2315 (General Technical Requirements for Electric Power Fittings); has passed type testing for ultimate tensile load and undergoes comprehensive factory inspection.