Barrier Board Sheet
Non-shrinkable polyolefin sheet (GBBS) used to secure and insulate structures with reduced clearance, and as an inter-phase barrier for switchgear applications.
- ASTM D149
- ASTM D150
- ASTM D257
Material properties
Technical Specifications
| Technical Specification* | ||
|---|---|---|
| PROPERTIES | VALUE | STANDARD |
| Tensile Strength | 10 N/mm² (Mpa) (min.) | ASTM D638 |
| Ultimate Elongation | 350 % (min) | ASTM D638 |
| Density | 1.20 ± 0.2 g/cm³ | ASTM D792 |
| Hardness | 40 ±5 Shore D | ASTM D2240 |
| Water absorption | 0.5 % (max.) | ASTM D570 |
| Accelerated ageing | (90 0 C for 7 Days) | ASTM D2671 |
| a. Tensile Strength | ± 25% Variation | ASTM D638 |
| b. Ultimate Elongation | ± 25% Variation | ASTM D638 |
| Low Temperature Flexibility | No Cracking | ASTM D2671 |
| (-40 0 C for 4 hrs.) | ||
| Continuous Temperature Limit | -45 to +105 0 C | IEC 216 |
| Dielectric Strength | 20 kV/mm.(min) | ASTM D149 |
| Volume Resistivity | 1 × 10¹⁴ Ohm.cm (min) | ASTM D257 |
| Dielectric constant | 5 (max.) | ASTM D150 |
| Resistant to Tracking & Erosion | No Tracking, Erosion or Flame failure upto 3.25 kV for 20 min. | ASTM D2303 |
Selection Chart
| Selection Chart | ||||
|---|---|---|---|---|
| Sr. No | Product Code | Width(mm) | Length(Mtr.) | Thickness(mm) |
| 1. | GBBS-2 | 670 mm | 15 | 2.0 |
| 2. | GBBS-2 | 670 mm | 15 | 3.0 |
| 3. | GBBS-3 | 670 mm | 15 | 5.0 |
| 4. | GBBS-3A | 970 mm | 15 | 3.0 |
| 5. | GBBS-5A | 970 mm | 15 | 5.0 |
Dimensions & Drawings
GBBS sheets secure and insulate the underside of structures with reduced clearance, and protect switchgear cabinets against inter-phase flashovers caused by contaminants, moisture and animals.
The sheets resist mechanical impact and wear, machine (cut and drill) without special equipment, and withstand power-arcs without changing shape — wiping clean afterward with no visible surface damage.
Features & Benefits
- GBBS-2, GBBS-3, GBBS-3A and GBBS-5A: 670 mm or 970 mm wide, 15 m long, 2.0 / 3.0 / 5.0 mm thick
- Dielectric strength 20 kV/mm (min., ASTM D149)
- Made from polyolefin material
- Continuous temperature limit −45°C to +105°C (IEC 216)
- UV-stabilized and weather resistant
- Tracking and erosion resistant to ASTM D2303
- Resistant to chemicals, solvents, alkali and salt
- Halogen free
- Suitable for both indoor and outdoor applications
Applications
- Insulation of reduced-clearance structures
- Inter-phase barrier in switchgear cabinets
- Indoor and outdoor electrical insulation
Standards & Compliance
- ASTM D149
- ASTM D150
- ASTM D257
- ASTM D570
- ASTM D638
- ASTM D792
- ASTM D2240
- ASTM D2303
- ASTM D2671
- IEC 216
FAQs
Frequently Asked Questions
What is the Barrier Board Sheet used for?
It is used for:
- Insulation of reduced-clearance structures
- Inter-phase barrier in switchgear cabinets
- Indoor and outdoor electrical insulation
Which standards and test methods are quoted for it?
These, with the values in the Technical Specification on this page:
- ASTM D149
- ASTM D150
- ASTM D257
- ASTM D570
- ASTM D638
- ASTM D792
- ASTM D2240
- ASTM D2303
- ASTM D2671
- IEC 216
Where can I download the datasheet?
From the "Download datasheet" button at the top of this page, or here:
Can I get a quote, a sample or a size that is not listed?
Send your cable details, quantity and application with the "Request a Quote or Sample" form at the foot of this page. For a size or variant that is not in the chart, describe what you need there, or use Technical support at the top of the page, and the technical team will confirm what can be supplied.
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