Easy Install Volsun RUBNS-OLC ROSH Certified Silicone Rubber High Voltage Overhead Line Insulation Covers Excellent Insulation

Product Description

RUBNS-OLC Silicon Rubber Overhead Line Cover DESCRIPTION

RUBNS-OLC The innovative product design, ease of installation. Use silicon rubber material, anti-aging, corrosion resistance, with good resistance to corona resistance, high temperature performance, especially suitable for the protection of the bare wire. Widely used in substation protection works and railway catenary system, a significant effect in the cross-lines

Features:

1. Soft and fold-resistant

2. Long service life, anti-aging, and corrosion resistance

3. Simple installation, no fire, power outage construction time is short

Support customization, ODM & OEM available

Click to get free sample

Technical Performance

Properties	Unit	Standard Data	Test Results	Test Method
Electrical Strength Test	kV/mm	≥20	22	GB/T 1408.1-2006
Volume Resistivity	Ω·cm	≥1×1014	2×1014	GB/T 1410-2006
Dielectric Constant		2～3	2.3	GB/T 1409-2006
Shore Hardness	A	70±5	71	GB/T 531
Mechanical Properties				GB/T 528
Before heat ageing
Tensile Strength	MPa	≥4.0	5.5
Elongation at break	%	≥200	243
After Heat ageing 180℃, 7d	%	±30	13
Tensile Strength Change 180℃, 7d	%	±30	-22
Elongation Change	%	±30	-22
Low Temperature Elongation(-15℃, 2h)	%	≥20	190	GB/T 2951.4-1997
Low Temperature Flexibility(-50℃, 4h)	-	No cracks	No cracks	UL224-2004
High Temperature Crack Resistance(155℃, 2h)	-	No cracks	No cracks	GB/T2951.6-1997

Dimensions

LG stranded Wire Cross-sectional Area mm2	Silicone Rubber Sleeving Covers Models mm
50～70	Ф12
95～120	Ф17
150～185	Ф20
210～300	Ф24.2
400	Ф30
500	Ф32
630	Ф35
800	Ф39.8
LGJ、LGJF stranded Wire Cross-sectional Areamm2	Silicone Rubber Sleeving Covers Models mm
35	Ф12
50	Ф15.6
70～95	Ф17
120～150	Ф20
185～240	Ф24.2
400～500	Ф32
800～800	Ф39.8

Size is available to customize

Company Show

Suzhou Volsun Electronics Technology Co., Ltd. was founded in 2006. We keep focusing on the R&D, production and sales in insulation, sealing & protection solutions for over 18 years

Quality is our culture. Volsun has a modern quality management system, which has passed a series of quality system certification such as IATF16949, ISO9001 etc. And we have gained some advanced titles such as Jiangsu famous scientific and technical corporation, China new high-tech enterprise etc. have independent intellectual property rights, 88 patents and 97 product certifications

Up to now, Volsun cooperated with customers from 88 countries, we offer suitable sealing, waterproof solutions for some well-know enterprises in communication, Automobile, Power industry etc

Packing & Delivery

Trade terms	FOB, EXW, CIF, DDU, DDP, CFR
Payment terms	T/T, L/C, Negotiable
Supply capability	1,000,000 mts per month
Lead time	Usually 2-3 working days
Shipment	Express, Air, Sea
Port	Shanghai, Ningbo, Shenzhen
Sample availability	Yes
Sample time	Usually 1-2 days
Packaging	Normal: Plastic bag & Carton & Pallet Special: Customized packing

Certifications

Abroad Exhibition

Las Vagas AAPEX

Moscow Expo

Hannover Messe

FAQ

Q 1. How long is the payment term
A: We accept T/T 50% deposit and 50% balance against B/L or L/C copy at sight, also accept Western Union, VISA and Paypal

Q 2. What is the normal lead time for product orders
A: The average lead time for prototype/first piece is 7~10 days, if tooling is involved, the lead time for production tooling is 10 days, and the average production time after sample approval is 2-3 weeks

Q 3.  What is your standard packaging
A: All goods will be packed in cartons and loaded on pallets. Special packing methods are acceptable when needed

Q 4. Can you tell us the monthly production capacity of your products
A: It depends on the model, we produce more than 1500 tons of rubber materials per month

Q 5. What kind of certificates do you have
A1: We have ISO9001:2015, IATF16949:2016, ISO14001:2015, ISO45001:2018 certified
A2: We have various rubber compounds approved by UL, ROHS and REACH

Q 6: How to check the quality of bulk order
A1: We provide pre-production samples to all customers before mass production if needed
A3: We accept third-party inspection, such as SGS, TUV, INTERTEK, BV, etc

Q 7: Can you provide customized service
A: Yes, we accept customization and can produce products in different sizes, packaging, colors according to requirements

Volsun presents the Easy Install Volsun RUBNS-OLC ROSH Certified Silicone Rubber High Voltage Overhead Line Insulation Covers Excellent Insulation — a purpose-built solution engineered to enhance overhead line safety and provide dependable, long-lasting protection for live high voltage infrastructure. Designed for rapid deployment, resilient performance, and compliance with modern environmental standards, this silicone rubber insulator system redefines how service crews approach high voltage insulation covers and overhead line safety challenges in diverse field conditions

Product Overview

The Easy Install Volsun RUBNS-OLC combines advanced silicone rubber insulators with a practical, user-focused design that simplifies the process of applying high voltage insulation covers on overhead lines. Each unit is crafted from premium silicone rubber that offers superior dielectric strength, flexible installation even in cold conditions, and excellent resistance to UV, ozone, and weathering. The product is ROHS certified and conforms to modern safety and environmental requirements, ensuring reliable insulation without compromising regulatory compliance. For operations focusing on overhead line safety, the RUBNS-OLC trending solution is an essential addition to safety kits, maintenance fleets, and emergency response toolboxes

Key Features

- High dielectric performance: The silicone rubber insulators deliver robust electrical insulation to prevent flashover and leakage, reducing risk during routine maintenance and emergency repairs. The primary function of the high voltage insulation covers is to isolate conductive parts safely, and the RUBNS-OLC design maximizes dielectric distance and cree-page path

- Easy installation: Engineered for fast, intuitive application, the Easy Install Volsun RUBNS-OLC uses ergonomic grips and flexible forms to allow single-person or team-based deployment. Simplified connectors and secure fastening systems reduce installation time and exposure time for technicians working on energized overhead lines

- Durable material composition: Manufactured from high-grade silicone rubber compounds, the covers resist degradation from prolonged exposure to sunlight, ozone, salt spray, and industrial pollutants. This longevity means fewer replacements, lower lifecycle costs, and sustained overhead line safety performance

- Weather and temperature resilience: Silicone rubber insulators maintain elasticity and insulating properties across a wide temperature range, enabling dependable performance in cold winters and hot summers without brittleness or loss of insulating capability

- Compliance and safety certifications: The ROHS-certified materials and quality-controlled manufacturing ensure that the product aligns with environmental and health standards. The RUBNS-OLC product meets or exceeds industry benchmarks for protective covers used in high voltage insulation covers applications

- Low maintenance and easy cleaning: Smooth silicone surfaces shed contaminants, dirt, and bird droppings more effectively than many traditional insulating materials, enabling easier maintenance routines and sustained electrical performance

- Versatile compatibility: Designed for compatibility with a broad spectrum of overhead line hardware, the silicone rubber insulators adapt to different conductor sizes and fittings, making them suitable for a wide range of distribution and transmission applications

Applications

The Easy Install Volsun RUBNS-OLC is ideal for utilities, contractors, and emergency crews focused on maintaining overhead line safety and minimizing outage risk. Typical applications include:

- Routine maintenance and hot-line work where reliable high voltage insulation covers are indispensable for crew protection

- Temporary insulation during component replacement or line upgrades to preserve safe working clearances on energized lines

- Emergency isolation and protection during storm response and post-disaster recovery to reduce hazard exposure and accelerate restoration efforts

- Training exercises and live-line demonstrations where high-quality silicone rubber insulators allow realistic practice without compromising safety

- Industrial and renewable energy installations where custom overhead line safety solutions are required to meet site-specific demands

Innovation and Technical Advantages

Volsun’s RUBNS-OLC product line capitalizes on material science and field-driven design to deliver advanced high voltage insulation covers. The silicone rubber insulators incorporate fillers and proprietary formulations to enhance dielectric strength and resistance to surface tracking under contaminated conditions. The surface chemistry reduces hydrophobicity loss over time, preserving insulation performance and minimizing the need for frequent replacement. The RUBNS-OLC trending design emphasizes modularity: components can be combined or scaled to cover multiple conductors or large assemblies, enabling versatile use across modern grid architectures

The product’s ease-of-installation innovation reduces technician exposure to energized components. Quick-release fittings and form-fitting geometries cut installation time and support safer, more efficient work practices. This design approach addresses common pain points in overhead line safety—complex deployment, heavy insulating materials, and time-consuming fastening systems—by replacing them with lightweight, compliant, and ergonomically tuned silicone rubber insulators

Technical Specifications

- Material: High-grade silicone rubber with long-term hydrophobicity recovery properties and elevated dielectric strength

- Certification: ROHS certified components and manufacturing practices

- Temperature range: Retains flexibility and insulating properties across extreme ambient temperatures typical of overhead environments

- Compatibility: Fits common conductor sizes and standard hardware interfaces used in transmission and distribution networks

- Service life: Engineered for extended longevity under UV, ozone, and salt-laden atmospheres

Performance Benefits

- Enhanced safety margin: The high voltage insulation covers provide a robust barrier against accidental contact and arcing during live-line procedures

- Reduced downtime: Easy install features and rapid deployment capabilities help service teams restore normal service faster during maintenance and outages

- Cost-effective lifecycle: Durable silicone rubber insulators lower replacement frequency and maintenance demands, offering a favorable total cost of ownership

- Environmental compliance: ROHS certification ensures reduced environmental footprint and alignment with procurement policies emphasizing sustainability

- Operational flexibility: The product’s modular and adaptable design supports diverse deployment scenarios, from urban distribution lines to remote transmission corridors

Use, Handling, and Maintenance

To maximize performance and service life, Volsun recommends routine inspections of the silicone rubber insulators, verifying surface condition and fastening integrity before each use. Cleaning with mild detergents and rinsing with water is generally sufficient to remove contaminants. Storage in a dry, shaded area away from direct sunlight and extreme temperatures preserves material properties when the covers are not in use. Training technicians in the Easy Install Volsun RUBNS-OLC application procedure enhances installation speed and contributes to safer outcomes in high voltage insulation covers work

Why Choose Volsun RUBNS-OLC

Volsun’s reputation for quality and field-focused solutions makes the Easy Install Volsun RUBNS-OLC a compelling choice for organizations prioritizing overhead line safety. The combination of silicone rubber insulators, ROHS certification, and a design optimized for quick deployment addresses the essential needs of modern power crews: effective high voltage insulation covers, reliable overhead line safety, and cost-efficient long-term performance. Whether for everyday maintenance, planned upgrades, or emergency response, the RUBNS-OLC trending product line supports safer, faster, and more sustainable operations

For teams committed to the highest standards of overhead line safety and electrical insulation performance, the Easy Install Volsun RUBNS-OLC ROSH Certified Silicone Rubber High Voltage Overhead Line Insulation Covers deliver the necessary features, certifications, and technical advantages. By integrating durable silicone rubber insulators with an intuitive installation system, Volsun offers a practical solution that enhances crew safety, reduces operational delays, and provides long-term value for utilities and contractors managing energized overhead infrastructure