T/ZZB 0263-2017 High-strength bolts, nuts, and washers for wind power generation
T/ZZB 0263-2017 High-strength bolts, nuts, and washers for wind power generation
Basic Information
Scope
Main technical content: This standard specifies the terms and definitions, basic requirements, technical requirements, test methods, inspection rules, marking, packaging, transportation and storage, and quality commitments for high-strength bolts, nuts, and washers used in wind power generation. This standard applies to high-strength bolts, nuts, and washers with a nominal diameter of 12 mm to 64 mm used in wind power generation (hereinafter referred to as bolts, nuts, and washers). The bolts, nuts, and washers specified in this standard are suitable for use under environmental temperatures of -45 °C to +60 °C, operating temperatures of -45 °C to +150 °C, and relative humidity not exceeding 95%. This standard applies to high-strength bolts, nuts, and washers used in wind power generation with a surface treatment of non-electrolytic zinc flake coating.