Technical Features Of 6kv Epoxy Resin Insulators
In the selection of indoor power distribution equipment and medium-voltage switchgear, the insulation support structure for 6kV voltage level directly affects the miniaturization and operational stability of the equipment. For this specific voltage level, high voltage epoxy resin uses a casting process to create a compact insulation interface.
Insulation Structure Based on Rated Parameters
The high voltage standoff insulator, suitable for 6kV, strictly adheres to the electrical standard of a rated voltage of 6.6kV. Its power frequency withstand voltage typically reaches 22kV, and its lightning impulse withstand voltage can withstand peak values of 60kV. The creepage distance of this type of insulator varies from 120mm to 195mm depending on the structure, effectively meeting the insulation coordination requirements under normal indoor environments. In terms of mechanical properties, the bending strength varies from 5880N to 8820N depending on the model, ensuring rigid support capacity when installing busbars or circuit breakers.
Material System and Process Implementation
The core carrier of this type of insulator is an epoxy resin system. Epoxy material mixed with curing agent and filler is injected into a precision mold using automated pressure gel (APG) or similar resin casting technology to form a dense insulator. Compared with traditional ceramic parts, epoxy resin has a high surface finish after casting, and metal inserts can be directly pre-embedded and cured, achieving integrated insulation and support hardware. Production control based on industrial standards such as JIS C3851 ensures dimensional consistency, which is especially critical for multi-position parallel installation in the narrow space of switchgear.
