Transmission Grade Compound Silicone Rubber Materials for Composite Insulator

• Raw Material: Compounding Rubber
• Material: Silicone Rubber
• Appearance: Solid
• Form: Roll
• Transport Package: Corrugated Paper Box
• Specification: 813*1118*889
• Model NO.: D275347B
• Trademark: MPC
• Origin: China
• HS Code: 39100000
• Production Capacity: 8000ton/Year

Product Description

SPECIFICATION

Test Item	Standard Request		Test Result	Standard	Conclusion
(Ω. m) Volume resistivity	≥1×10^12		2.25×10^12	GB 1692-2008	Pass
(Ω) Surface insulation resistivity,	≥1×10^10		2.04×10^15		Pass
(%) Dielectric loss tangent Test	≤5		1.87	GB 1693-2007	Pass
Relative dielectric constant	≥3.5		4.63		Pass
(2mm) (kV/mm) Puncture test	≥20		21.06	GB 1695-2005	Pass
Tracking and Erosion withstanding test	≤2.5mm depth of erosion≤2.5mm		0.97	GB 6553-2003	Pass
	≥1A4.5 class of rubber≥1A 4.5		1A 4.5
N/mm^2 Tensile strength	≥4		5.61	GB/T 528-2009	Pass
% Elongation at break	≥150		305		Pass
()kN/m Tear strength	≥10		21.94	GB/T 529-2008	Pass
Shore-A hardness	≥50		58	GB/T 531.1-2008	Pass
Hydrophobicity	HC1		HC1	DL/T 376-2010	Pass
() Flame resistant (Vertical flame test methods)	V-0		V-0	GB/T 5169.16-2008	Pass
Specific gravity	1.48±0.03		1.500	GB/T 533-2008	Pass
(177ºC/5min) Vulcanization characteristics	TS2(s)	20±10	27	GB/T 16584-1996	Pass
	TC90(s)	75±20	92
	ML(dN.m)	6±2	5.12
	MH(dN.m)	25±5	20.49
Over-all Conclusion	Pass