Description

Suitable for injection and mould pressing. Special silicone rubber for producing ultra-high voltage, high-voltage composite insulators, composite arresters, line insulators and other high-voltage power transmission equipments.

Physical Properties Test Method Unit Data
Model     NJ-152A-60 NJ-152A-70 NJ-152A-90 NJ-152B-60 NJ-152C-60 NJ-152H-60
Appearance Under D65 Illuminant / Grey/Red/Customized, Inclusion-free.
Shore Hardness DIN 53505-A/ASTM D2240 A0 65±5 70±5 88±5 65±5 65±5 57-63
Elongation At Break DIN 53504-SI/ASTM D412 % ≥240 ≥180 ≥150 ≥220 ≥220 ≥220
Tensile Strength DIN 53504-SI/ASTM D412 Mpa  ≥5.0 ≥5.0 ≥5.0 ≥4.5 ≥4.0 ≥4.0
Tear Strength ASTM 624B KN/m ≥12 ≥10 ≥10 ≥10 ≥10 ≥10
Hydrophobicity DL-T376-2010 / HC1 HC1 HC1 HC1 HC2 HC2
Flammability UL-94 Class V0 V0 V0 V0 V0 V0
 
Electrical Properties Test Method Unit Data
Dielectric Strength  IEC 60243 KV/mm ≥22 ≥22 ≥22 ≥21 ≥20 ≥20
Dielectric Constant IEC 60250 F/m ≤5.0 ≤5.0 ≤5.0 ≤5.0 ≤5.0 3.0-5.0
Volume Resistivity  IEC 60093 Ω·cm ≥2×1014 ≥2×1014 ≥2×1014 ≥2×1014 ≥1×1014 ≥1×1014
Tracking & Erosion Resistance IEC 60587 Class TM1A4.5≤2.5mm TM1A4.5≤2.5mm TM1A4.5≤2.5mm TM1A4.5≤2.5mm TM1A4.5≤2.5mm TM1A4.5≤2.5mm
Dielectric Loss Angle Tangent IEC 60250 / ≤6.0×10-2 ≤5.0×10-2 ≤6.0×10-2 ≤4.0×10-2 ≤5.0×10-2 ≤4.0×10-2
UV Aging Resisitance UVA-340 % Pass Pass Pass Pass Pass Pass
Sample Cured Condition Curing temperature/time: 170×6Min.
Process Suggestion Suitable for pressing/injeciton molding: suggested mold temperature 145C-165C for molding, time 5-15 mins, specific process according to size of housing to achieve best condition.
Package  500KG/Carton; 25KG/ Carton
Storage Condition Room temperature less than 25, do not contact water, avoid sun exposure.
Expiry Date 10 months, suggest to finish within 3 months.If expired, can continue to be used after remilling and qualified inspection.