Custom fabricated non-metallic components for electrical insulation, thermal protection, and structural support in critical power applications.
WS Hampshire fabricates high quality electrical and thermal insulation components for demanding applications where voltage, heat, mechanical loading, and reliability must all be considered together. Our capabilities support OEM production, replacement parts, and custom-fabricated components for switchgear, transformers, busway, power distribution equipment, rotating equipment, and other electrically demanding systems.
Learn more about our technical material selection, fabrication capabilities, and specific equipment applications.
POWER EQUIPMENT APPLICATIONS
Electrical insulation components serve as vital safeguards in systems where failure results in downtime or safety hazards. High-performance non-metallic materials often enhance dielectric performance and extend the overall service life of power equipment.
Engineers typically specify these custom-fabricated parts for:
- Busbar supports. These components provide essential insulating barriers within power distribution systems.
- Switchgear. Our team produces arc shields, phase barriers, and insulating panels for reliable circuit protection.
- Transformer components. We fabricate spacers, blocks, wedges, and terminal supports to withstand electrical stress.
- Rotating equipment. Rigid support components and filler strips maintain the integrity of generators and motors.
- Thermal management. Heat shields and thermal barriers protect sensitive electronics within electrical enclosures.
MATERIALS FOR ELECTRICAL INSULATION APPLICATIONS
Environment-specific factors – including temperature, flame resistance, and arc exposure – dictate the best material fit for a given application.
Ryertex G10
This rigid glass-epoxy laminate maintains excellent mechanical strength and dielectric properties in structural applications. It serves as a standard choice for insulating supports and spacers when flame retardancy is not a requirement.
Ryertex FR4
FR4 delivers the same mechanical performance as G10 but includes flame-retardant properties. It is often specified for terminal boards and enclosure barriers in both dry and humid electrical environments.
Ryertex G11
This higher-temperature laminate provides an increased thermal margin compared to standard grades. G11 retains its electrical and mechanical properties across a broader temperature range, making it ideal for switchgear barriers and transformer components.
Ryertex FR5
FR5 offers a combination of high-temperature stability and flame-retardant behavior. This material addresses the needs of the most demanding transformer and switchgear insulation services.
Muscovite Mica
Muscovite mica is the preferred grade when high dielectric strength is the primary driver. This material allows for tight-tolerance machining in high-voltage barriers and heater components.
Phlogopite Mica
This grade excels in thermal endurance. Phlogopite mica remains a reliable insulator even under severe heat conditions that would degrade standard electrical laminates.
WHAT TO CONSIDER WHEN SELECTING A MATERIAL
Material selection should center on the real-world operating environment rather than just material familiarity.
Key environmental factors to prioritize:
- Continuous and short-term fault temperatures
- Requirements for flame-retardant behavior
- Voltage stress and required dielectric performance
- Potential exposure to humidity or moisture
- Mechanical loading and long-term dimensional stability
CUSTOM FABRICATION FOR OEM AND REPLACEMENT PARTS
We fabricate insulation components according to customer prints, samples, or specific application requirements. Our facility supports high-volume OEM production alongside small-run, made-to-order projects.
Our core fabrication capabilities include:
- CNC machining. We produce rigid insulation components with high precision.
- Conversion services. Our shop handles sheet, tube, and custom converted parts.
- Reverse engineering. We specialize in creating replacement parts for legacy systems.
- Inventory management. Custom stocking programs ensure a steady supply of essential components.
WHY NON-METALLIC ELECTRICAL INSULATION COMPONENTS
In many power-related applications, non-metallic materials are selected because they can provide a better balance of electrical insulation, thermal performance, corrosion resistance, weight reduction, and protection of adjacent components. They are often used where metal is not the best fit for voltage isolation, heat management, or long-term equipment reliability.
COMMON APPLICATION AREAS
Our electrical and thermal insulation components are a strong fit for applications such as:
- Power distribution equipment
- Switchgear and control equipment
- Transformers
- Busway systems
- Motors and generators
- Electrical enclosures
- High-voltage support components
- Thermal and dielectric barrier components
LET’S TALK ABOUT YOUR APPLICATION
Non-metallic materials offer a superior balance of weight reduction, corrosion resistance, and voltage isolation compared to traditional metal components. We help manufacturers identify the most effective materials to manage heat and maintain long-term equipment reliability.
Contact us to discuss your application, material requirements, and fabrication needs.