Raman Sigmacom 3.1 SS boards are available in smaller sheet size of 1,050 x 2,100 mm only. The precompressed pressboard variety is manufactured from unbleached kraft pulp and treated water. The wet board is pressed and dried simultaneously to obtain boards of good mechanical strength in machine, cross-direction and dielectric strength. Recommended for use up to 66 kV.

Raman Sigmacom 3.1 SS conforms to IEC 60641-3-1, 3.1A specifications. 

• More than 150 years of experience in insulation
• Complete range of insulation products for liquid-filled transformers; comprehensive range for dry-type
• Material excellence
• Advanced technology to scan the quality of pressboard
• Approved supplier to major utilities worldwide
• Global footprint

• Power and distribution transformers
• Thickness: 1.0 mm to 6.0 mm
• Size: 1,050 x 2,100 mm