T/CNTAC 71-2020 Clothing and Accessory Electric Heating Sheet
T/CNTAC 71-2020 Clothing and Accessory Electric Heating Sheet
Basic Information
Scope
Scope: This document applies to electric heating patches (hereinafter referred to as "electric heating patches") made from wires, conductive fibers, conductive films, conductive fabrics, and similar materials that can generate heat after being powered on, excluding mobile power supplies. This document does not apply to products used in harsh outdoor environments such as underwater, extremely cold, or high-altitude conditions, or to medical products. This document does not apply to products for infants and young children aged 36 months or younger. Note: Accessories include gloves, neck warmers, eye masks, and abdominal heating belts. Main technical content: This document specifies the terms and definitions, requirements, test methods, inspection rules, marking and usage instructions, as well as packaging, transportation, and storage for electric heating patches used in clothing and accessories with a rated voltage not exceeding 12 volts DC.