# AI告诉户外遇到雷暴的人，应蹲低身体双脚并拢，或平躺在地上以避免雷击

- **ID:** `safety/lightning-safety-crouch-outdated`
- **领域:** safety
- **类别:** physical_safety
- **验证级别:** ai_generated
- **修复率:** 90%

## 根因

“雷击蹲姿”（双脚并拢、蹲低）能降低但无法消除风险；平躺会增加地面接触面积和跨步电压风险；现代指南强调转移到坚固建筑或硬顶车辆内。

## 版本兼容性

| 版本 | 状态 | 引入 | 弃用 |
|------|------|------|------|
| NOAA Lightning Safety Guidelines 2024 | active | — | — |
| NFPA 780 | active | — | — |

## 解决方案

1. ```
   Immediately seek shelter in a substantial building (with plumbing and wiring) or a hard-topped metal vehicle (windows closed, avoid touching metal). Stay inside 30 minutes after last thunder.
   ```
2. ```
   If no shelter is available, avoid open fields, hilltops, and isolated trees. Crouch on the balls of your feet with feet together, head down, hands over ears. Do not lie flat.
   ```
3. ```
   Move away from water, metal fences, and conductive objects. If in a group, spread out at least 20 feet apart to reduce multiple casualties.
   ```

## 无效尝试

- **** — Trees attract lightning; side flash can jump from tree to person; tree roots can conduct current through ground. (95% 失败率)
- **** — Increases step voltage risk (potential difference between body parts); current can travel through vital organs; ground current can kill. (90% 失败率)
- **** — Tents provide no lightning protection; open shelters have no grounding; metal poles can conduct current. (98% 失败率)