QX/T 569-2020 in English
VALIDTechnical requirements for site selection and installation of ground-basedcatalyst generator on artificial precipitation enhancement
- Issued on:2020-07-31
- Implemented on:2020-12-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
$185.00
| Standard No: | QX/T 569-2020 |
| Document status: | VALID |
| Title in English: | Technical requirements for site selection and installation of ground-basedcatalyst generator on artificial precipitation enhancement |
| Title in Chinese: | 人工增雨（雪）地面催化剂发生器选址安装技术要求 |
| Language: | English |
| File Format: | Electronic (PDF) |
| Delivery: | Via email within 1~3 business days |
| Issued on: | 2020-07-31 |
| Implemented on: | 2020-12-01 |
| Professional Classification: | QX-Meteorology |
| Related Keywords: | site selection standard
site selection class=instrument > catalyst generator installation site selection verification elementsqx/t569-2020 requirementsinternational comparison site spacing10-30kmwyoming project |
| Related Topics: | artificial rain
qx/t-2020 qx/t 567-2020 |
Introduction
Analysis of standard technical framework
| Core elements | QX/T569-2020 requirements | International comparison |
|---|---|---|
| Site spacing | 10-30km | Wyoming project adopts 15-50km(2016) |
| Site area | ≥4m×4m | Australian project requires 5m×5m(2011) |
| Power supply guarantee | 7 days backup power | Colorado project requires 5 days(2019) |
| Lightning protection resistor | Complies with GB50057 | IEEE Std 1100-2005 |
Key technical points for site selection
Standard 4.1.2 clearly requires that the ground catalyst generator be arranged in:
- Updraft area: Select the maximum vertical airflow area through Doppler radar data
- Cloud path: Statistical radar data to determine the main movement path of precipitation clouds
- Safety distance: Maintain a distance of ≥2m from the fence, and the monitoring pole is arranged at 7-8m
Installation engineering specifications
Taking the Hainan project as an example, class=instrument>Catalyst generator installation requires the following:
- Base hardening shall be constructed in accordance with JGJ116 standard
- Pre-buried anchor bolt depth ≥80cm
- Lightning protection grounding resistance ≤10Ω(QX/T226)
Implementation suggestions
1. Site selection verification: It is recommended to use the WRF mode to simulate the catalyst diffusion path
2. Equipment selection: Prioritize the use of lightning protection distribution boxes that have passed 3C certification
3. Acceptance focus: Check monitoring coverage without blind spots and fire isolation zone settings
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