T/ZHEAA 2001-2023 Design specification for household direct-heat central electric heating system
T/ZHEAA 2001-2023 Design specification for household direct-heat central electric heating system
Basic Information
Scope
Scope: This document applies to electric heating systems used in new, expanded, renovated, and transformed residential buildings and similar energy-saving buildings, with a rated voltage of no more than 250V for single-phase appliances and 480V for three-phase appliances. This document does not apply to: — Storage-type electric heating systems; — Electric heating systems installed in building structures, such as floor-mounted and ceiling-mounted electric heating systems; — Electric heating systems designed specifically for industrial purposes; — Electric heating systems used in buildings with special purposes, special purification, and special protection requirements; — Electric heating systems used in special environments where corrosive or explosive gases (such as dust, steam, or gas) are frequently generated. Main technical content: This document specifies the terms and definitions, system classification, design principles, and design requirements for household direct-heating central electric heating systems (hereinafter referred to as "electric heating systems").