1Key Takeaways
This standard specifies the type, size, technical requirements, inspection rules and test methods of pollution-resistant outdoor rod-shaped post porcelain insulators (hereinafter referred to as insulators). This standard is applicable to insulators with pollution level E and above used on power equipment and devices op…
2Scope / Description
This standard specifies the type, size, technical requirements, inspection rules and test methods of pollution-resistant outdoor rod-shaped post porcelain insulators (hereinafter referred to as insulators). This standard is applicable to insulators with pollution level E and above used on power equipment and devices operating in the AC system with a rated voltage of 35-500kV and a frequency not greater than 100Hz. Between, the altitude does not exceed 1000m. NOTE: Contamination issues at high altitudes are under consideration.
6Frequently Asked Questions
What is GB 12744-1991?
GB 12744-1991 — Outdoor antipollution-type solid-core post insulators of ceramic material is an international standard developed by General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China. This standard specifies the type, size, technical requirements, inspection rules and test methods of pollution-resistant outdoor rod-shaped post porcelain insulators (hereinafter referred to as insulators). This standard is applicable to insulators...
What does GB 12744-1991 cover?
This standard covers: This standard specifies the type, size, technical requirements, inspection rules and test methods of pollution-resistant outdoor rod-shaped post porcelain insulators (hereinafter referred to as insulators). This standard is applicable to insulators with pollution level E and above used on power...
Who should use this standard?
This standard is intended for organizations, professionals, and stakeholders involved in various industries and sectors. It is applicable to manufacturers, service providers, regulatory bodies, and certification organizations.
What is the latest version of GB 12744-1991?
The current published version is GB 12744-1991, published on 1991-03-21. Always check for amendments or pending revisions.
How do I purchase GB 12744-1991?
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