KS C IEC 60893-3-4-2018(2023) Insulating materials — Industrial rigid laminated sheets based on thermosetting resins for electrical purposes — Part 3-4: Specifications for individual materials — Requirement for rigid laminated she
2018KS C IEC 60893-3-4:2018 Insulating materials — Industrial rigid laminated sheets based on thermosetting resins for electrical purposes — Part 3-4: Specifications for individual materials — Requirement for rigid laminated she
2003KS C IEC 60893-3-4:2003 Specification for industrial rigid laminated sheets based on thermosetting resins for electrical purposes-Part 3:Specifications for individual materials-Sheet 4:Requirements for rigid laminated sheets based on phenolic resins