Cable accessories, including cable terminations, joints, cold-shrink and heat-shrink accessories, insulating sleeves, and sealing plugs, are critical connection points in power transmission systems. They are also one of the first lines of defense for safe and stable grid operation.

However, many maintenance teams have encountered similar problems: newly replaced cable accessories begin to show partial discharge, moisture-related tracking, difficult insertion or removal, swollen sealing parts, or cracked rubber components after only a short period of use. In severe cases, these issues may lead to insulation breakdown, equipment burnout, costly maintenance, and serious safety risks for power systems.

In fact, many cable accessory failures are not caused by the accessory itself, but by the wrong choice of lubricant or grease.

Ordinary grease or low-quality lubricants cannot meet the strict requirements of high-voltage cable accessories, especially in terms of insulation, sealing, moisture resistance, and material compatibility. Using the wrong grease may directly cause four major hidden risks:

1.Air Gaps at the Interface May Cause Partial Discharge

Ordinary lubricants often have weak insulating performance and may volatilize over time. They cannot effectively fill tiny gaps between cable accessory interfaces. Under high-voltage conditions, these gaps may trigger partial discharge, gradually damaging the insulation layer and increasing the risk of breakdown.

2.Moisture Ingress May Lead to Tracking and Short Circuits

Poor waterproof and moisture-proof performance allows moisture to penetrate cable accessories more easily. This may cause electrical tracking, corrosion, and, in severe cases, short-circuit failures.

3. Poor Lubrication May Damage Cable Accessories During Installation

Some greases become dry, sticky, or hardened after use, making installation, insertion, removal, and maintenance more difficult. Excessive friction may scratch rubber insulation parts and create hidden safety hazards.

4. Poor Material Compatibility May Cause Seal Failure

If the grease is not compatible with rubber or plastic materials, long-term use may cause sealing rings to swell, crack, or age prematurely. This can damage the sealing structure and reduce the protective performance of the cable accessory.

Why Choose High-Quality Insulating Power Silicone Grease?

A high-quality insulating power silicone grease provides both installation lubrication and long-term maintenance protection. It has stable performance, is not easy to volatilize or dry out, and can offer long-lasting protection after one application. This helps reduce maintenance frequency, lower replacement costs, and improve the reliability of power equipment.

JUNENG has been focusing on specialty lubrication solutions for six years. For the maintenance and protection of power cable accessories, JUNENG has developed insulating power silicone grease based on modified silicone oil, ultra-pure insulating fillers, and functional additives.

Four Core Advantages of JUNENG Insulating Power Silicone Grease

Excellent Insulation Performance to Help Prevent Discharge

JUNENG insulating power silicone grease helps fill interface gaps in cable joints and accessories, reducing the risk of partial discharge and corona. It supports stable operation under high-voltage conditions.

Hydrophobic and Moisture-Proof for Reliable Sealing

With excellent water-repellent and moisture-resistant properties, the grease helps block moisture penetration and improve sealing protection. It is suitable for outdoor, underground, humid, and other demanding working environments.

Smooth Installation and Easy Maintenance

The grease provides effective lubrication and friction reduction without damaging insulating materials. It helps improve installation efficiency and makes later inspection, disassembly, and maintenance easier.

Good Material Compatibility and Long Service Life

JUNENG insulating power silicone grease is compatible with rubber and plastic materials. It helps prevent swelling, cracking, and premature aging of sealing components, extending the service life of cable accessories.

JUNENG: Reliable Support for Power Equipment Maintenance

JUNENG has been deeply engaged in specialty lubrication for six years and holds multiple quality and environmental certifications, including ISO9001, ISO21469, RoHS, and REACH. We have served more than 30,000 companies across different industries.

At the same time, JUNENG provides customized lubrication solutions, free samples, and 24-hour technical support. Our products are widely used in cable accessories, power distribution cabinets, transformers, and other power equipment.

With JUNENG insulating power silicone grease, power companies can improve equipment reliability, reduce maintenance costs, and achieve safer, more efficient operation.