China Preformed Suspension Clamps (SCL) Manufacturers, Exporter

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China Preformed Suspension Clamps (SCL) Manufacturers, Exporter

Purpose

1.The function of preformed suspension clamps is similar to that of common suspension clamps: they are used to suspend conductors and ground wires on transmission towers. The key difference is that preformed suspension clamps not only control guard wires effectively but also greatly reduce corona discharge due to their smooth outer profile. Thus, they are especially suitable for ultra-high-voltage lines (â‰¥220 kV), as well as long-span crossings over rivers and large-angle transmission towers (30â€“60Â°) when used as suspension clamps for support points.

2.Preformed suspension clamps utilize preformed suspension sets and preformed guard wires. They are designed to alleviate static and dynamic stresses at support points, protecting conductors and ground wires from wind-induced effects. Meanwhile, they shield guard wires from impact and electrical abrasion at the supports. As an excellent integrated suspension assembly, preformed suspension clamps 3.protect conductors from bending stress, compressive stress, and abrasion.

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Product Description

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Steel Core Aluminum Conductor with Preformed Suspension Clamp (SCL)

Table C01-1: Model and Specifications

Product Model	Industry Standard (GB/T 1179-83)	Diameter Range Min (mm)	Diameter Range Max (mm)	Cleat Length (mm)	Weight (kg)	Color Code	Breaking Strength (kN)	Suspension Loop
CL-35/6	CL-35/6	8.03	8.31	660	1.1	Red	66	SYB-15-B
CL-50/8	CL-50/8	9.53	9.88	660	1.1	Pink	66	SYB-15-B
CL-70/10	CL-70/10	11.05	11.45	914	1.1	Yellow	66	SYB-15-B
CL-95/15	CL-95/15	13.49	14.78	1041	1.8	Yellow	66	SYB-15-B
CL-95/20	CL-95/20	13.79	14.1	1118	1.7	Black	66	SYB-15-B
CL-120/7	CL-120/7	14.11	14.46	1118	1.7	White	66	SYB-15-B
CL-120/20	CL-120/20	14.57	15.14	1183	1.7	Brown	66	SYB-15-B
CL-120/25	CL-120/25	15.42	15.7	1408	1.7	Purple	66	SYB-15-B
CL-150/8	CL-150/8	15.75	16.39	1270	1.9	Red	66	SYB-15-B
CL-150/25	CL-150/25	16.4	17.1	1372	2.2	Blue	66	SYB-15-B
CL-150/35	CL-150/35	17.11	17.54	1372	2.2	Green	66	SYB-15-B
CL-185/10	CL-185/10	17.55	18.04	1372	2.2	Yellow	66	SYB-15-B
CL-185/30	CL-185/30	18.59	19	1422	2.3	White	66	SYB-15-B
CL-210/10	CL-210/10	19.52	20.1	1524	3.1	Pink	89	SYB-26-B
CL-210/25	CL-210/25	20.05	20.94	1549	3.2	Purple	89	SYB-26-B
CL-210/30	CL-210/30	20.11	20.94	1549	3.2	Purple	89	SYB-26-B
CL-240/30	CL-240/30	21.48	22.09	1626	3.3	Blue	89	SYB-26-B
CL-240/45	CL-240/45	22.1	22.69	1651	3.4	Green	89	SYB-26-B
CL-300/15	CL-300/15	22.7	23.05	1651	3.4	Green	89	SYB-26-B
CL-300/20	CL-300/20	23.29	23.79	1676	4	Black	89	SYB-26-B
CL-300/25	CL-300/25	23.5	24.45	1702	4	White	89	SYB-26-B
CL-300/50	CL-300/50	23.8	25.54	1733	4.4	Pink	89	SYB-26-B
CL-300/70	CL-300/70	25.08	25.54	1733	4.4	Pink	89	SYB-26-B
CL-400/20	CL-400/20	26.43	27.29	2083	5.9	Blue	111	SYB-25-B
CL-400/25	CL-400/25	-	-	2083	6.2	Green	111	SYB-25-B
CL-400/30	CL-400/30	27.3	27.69	2083	6.2	Yellow	111	SYB-25-B
CL-400/50	CL-400/50	27.7	28.2	2083	6.2	Yellow	111	SYB-25-B
CL-400/95	CL-400/95	28.88	29.46	2083	6.2	White	111	SYB-25-B
CL-500/35	CL-500/35	29.87	30.68	2083	6.5	Pink	111	SYB-25-B
CL-500/45	CL-500/45	30.69	31.12	2235	8.3	Purple	111	SYB-25-B
CL-630/45	CL-630/45	33.39	34.44	2235	8.3	Yellow	111	SYB-25-B
CL-630/55	CL-630/55	34.43	35.41	2235	9.1	Black	111	SYB-25-B
CL-800/30	CL-800/30	37.53	38.51	2235	9.7	Purple	111	SYB-25-B
CL-800/55	CL-800/55	38.25	39.55	2235	9.7	Red	111	SYB-25-B
CL-800/100	CL-800/100	39	40	2235	-	-	111	SYB-25-B

Table CO1-2: Aluminum Stranded Conductors (≤345kV)

Product Model	Conductor Type (LJ Series)	Dia. Range Min (mm)	Dia. Range Max (mm)	Length (mm)	Weight (kg)	Color Code	Strength (kN)	Optional Loop
CL-95	LJ-95	12.24	12.69	1016	1.1	Red	66	SYB-15-B
CL-120	LJ-120	14.11	14.56	1118	1.7	White	66	SYB-15-B
CL-150	LJ-150	15.75	16.39	1270	1.9	Red	66	SYB-15-B
CL-185	LJ-185	17.11	17.54	1372	2.1	Green	66	SYB-15-B
CL-210	LJ-210	18.59	19	1422	2.3	White	66	SYB-15-B
CL-240	LJ-240	19.52	20.1	1524	3.1	Orange	89	SYB-26-B
CL-300	LJ-300	22.1	22.69	1651	3.4	Green	89	SYB-26-B
CL-400	LJ-400	25.58	25.97	2082	5.5	Purple	89	SYB-26-B
CL-500	LJ-500	28.28	29.2	2083	6.2	Blue	111	SYB-25-B
CL-630	LJ-630	32	32.67	2235	8.8	White	111	SYB-25-B
CL-800	LJ-800	36.64	37.52	2235	9.7	Orange	111	SYB-25-B

Table CO1-3: Preformed Double Suspension Clamps

Product Model	Min. Dia (mm)	Max. Dia (mm)	ACSR Type	Aluminum Type	Length (mm)	Weight (kg)	Color	Strength (kN)	Optional Loop
CL-35/6S	8.33	8.38	Jun-35	-	970	1.8	Red	132	SYB-15-B (x2)
CL-50/8S	9.53	9.88	Aug-50	-	970	2	Pink-Purple	132	SYB-15-B (x2)
CL-70/10S	11.05	11.45	Oct-70	-	1220	2	Blue	132	SYB-15-B (x2)
CL-95/15S	13.79	14.78	95/15	-	1350	2.8	Yellow	132	SYB-15-B (x2)
CL-240/30S	21.48	22.09	240/30	300	2080	5.6	Green	178	SYB-26-B (x2)

📋 Model Nomenclature:

C = Suspension clamp;
L = Preformed spiral type;
Numbers = Applicable conductor model.

Frequently Asked Questions (FAQ)

What is the function of a Preformed Suspension Clamp?

The preformed suspension clamp is designed to protect conductors at suspension points. It provides superior grip while reducing static stress at the support point and suppressing conductor vibration.

How do I interpret the model numbers like CL-300/20?

In the model number, 'C' stands for Suspension Clamp, 'L' indicates the Preformed spiral type, and the numbers (e.g., 300/20) represent the specific applicable conductor model and its cross-sectional area.

What materials are these clamps compatible with?

These clamps are specifically designed for Steel Core Aluminum Conductors (ACSR/LGJ/LGJF series) and Aluminum Stranded Conductors (LJ series).

Why are there different color codes for each model?

Color codes serve as a visual identification system to help technicians quickly match the suspension clamp with the correct conductor diameter range during installation.

What is the difference between single and double suspension clamps?

Single clamps (e.g., CL series) are for standard support, while Double Suspension Clamps (e.g., CL-S series) offer higher vertical breaking strength (up to 178kN) for enhanced safety in heavy-duty or long-span applications.

What is the significance of the Vertical Breaking Strength?

Vertical Breaking Strength (measured in kN) indicates the maximum load the clamp can withstand. Our products range from 66kN to over 111kN for standard models to ensure long-term structural integrity.