T/ZZB 0399-2018 Intelligent direct-heat central electric heating system
T/ZZB 0399-2018 Intelligent direct-heat central electric heating system
Basic Information
Scope
Main technical content: This standard specifies the terms and definitions, classification, basic requirements, technical requirements, test methods, inspection rules, marking, packaging, transportation, storage, and quality commitments of intelligent direct-heating central heating systems (hereinafter referred to as "heating systems"). This standard applies to single-phase appliances with a rated voltage not exceeding 250V, and other appliances with a rated voltage not exceeding 480V, used in indoor public places such as schools and shopping malls, as well as in homes and similar indoor spaces. This standard does not apply to: —— Storage-type heating systems; —— Heating systems installed in building structures, such as floor-type and ceiling-type heating systems; —— Heating systems designed specifically for industrial purposes; —— Heating systems intended for use in special environments where corrosive or explosive gases (such as dust, steam, or gas) are frequently generated.