Class 4 Matting – 36kV Electrical Insulating Rubber Mats ASTM D178 Type 2

Class 4 matting type SM556-04 is a high quality fine ribbed rubber insulating matting which is fully certified to meet American National Standard ASTM D178 Type 2, Section 5:

Class 5.1.2.1-A O-Zone Resistant
Class 5.1.2.2-B Flame Resistant
Class 5.1.2.3-C Oil Resistant

The ASTM D178 Class 4 matting is fully certified and tested to 50kV with a recommended safety working voltage of 36kV.

Additionally the electrical insulating matting has a fine ribbed, anti-slip surface pattern on one side and a cloth impression finish on the reverse side ensuring safe electrical working conditions for users.

SM556-04 insulating matting is available in stock lengths of 10m x 0.91m with a thickness of 12.7mm and on request can be produced in cut length sizes and a variety of colours or with flame retardant, low emission grade materials.

➡ Also Class 4 Matting IEC61111

Class 4 Matting

ASTM D178 Type 2

Technical Information

Insulating Matting Part Number	SM556-04
Matting Application	Electrical Safety, General Purpose, Health & Safety
Insulating Matting Product Description	36kV Working Voltage ASTM D178 ANSI JS.7 Type 2 Class 4 Anti-Slip Electrical Safety Matting Sections: 5.0.0/1-A OZONE, /2-B FLAME, /3-C OIL
Matting Thickness	12.7mm
Colour	Black. Others available on request
Insert Req	No
Solid	Yes
Drainage Holes	No
Dielectric Test Voltage	50kV
Surface Proof Test Voltage	40kV
Class 4 Matting Working Voltage	36kV
Stock Roll Sizes	10m x 0.91m x 12.7mm Mat
Weight	16.51kg/m²
Compound	NR
Hardness (Shore A)	65º
Density (SG)	1.3
Tensile Strength	5 MPA
Elongation (Min)	250%
Abrasion Resistance	180mm³
Minimum Temperature	-20ºC
Maximum Temperature	+70ºC

American National Standard ASTM D178

The American National Standard ASTM D178 outlines the requirements for rubber matting for electrical purposes and specifies the construction materials, thickness, width and the testing conditions and results expected to meet the standard – this covers low, medium and high voltage (LV MV HV) electrical protection and safety when working around switchboards and plant rooms.

Contact T&D for prices, delivery and technical support for SM556-04 36kV Class 4 Type 2 Electrical Insulating Mats.

➡ See also Class 1 Matting | Class 2 Matting | Class 3 Matting | IEC Matting

MV-HV insulating matting also available for safe working on switchgears/switchboards up to 33kV.