T/ZZB 1661-2020
Flame resistant optical fibre cables for communication for mine (English Version)
- Standard No.
- T/ZZB 1661-2020
- Language
- Chinese, Available in English version
- Release Date
- 2020
- Published By
- Group Standards of the People's Republic of China
- Latest
- T/ZZB 1661-2020
- Scope
- This standard specifies the terms and definitions, product classification, basic requirements, structure and materials, technical requirements, test methods, inspection rules, signs, instructions for use, packaging, transportation and storage of flame-retardant communication optical cables for coal mines (hereinafter referred to as optical cables) and quality promise. This standard applies to underground communication optical cables in coal mines, and can also be applied to other underground communication optical cables with flame retardant requirements.
T/ZZB 1661-2020 history
- 2020 T/ZZB 1661-2020 Flame resistant optical fibre cables for communication for mine
