What is an IP rating?
The IP (Ingress Protection) rating is an international standard for measuring a device’s levels of protection from dust and fresh water. The first digit in the two-digit IP code indicates the level of protection against solid objects, including dust. The second digit refers to what degree the device is protected from fresh water.
防护等级(IP. Ingress Protection)是国际通用的设备防尘防水的衡量标准，共2位数字。第1位表示防护固体物质(包括灰尘)的等级，第2位表示对纯水的防护等级。
Protection from solid objects and dust
对固体和灰尘的防护
IP0X. No special protection
IP0X. 无防护.
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IP1X. Protected against solid objects > 50 mm in diameter.
IP1X. 防护大于12.5mm的物体.
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IP2X. Protected against solid objects > 12.5 mm in diameter.
IP2X. 防护大于12.5mm的物体.
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IP3X. Protected against solid objects > 2.5 mm in diameter.
IP3X. 防护大于2.5mm的物体.
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IP4X. Protected against solid objects > 1 mm in diameter.
IP4X. 防护大于1mm的物体.
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IP5X. Protected against dust; limited ingress (no harmful deposit).
IP5X. 防尘，限制外部物侵入(无有害物质累积).
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IP6X. Dust tight.
IP6X. 完全防尘
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Protection from fresh water
对纯水的防护
IPX0. No special protection
IPX0. 无防护
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IPX1. Protected against dripping water.
IPX1.保护不受滴落水滴影响.
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IPX2. Protected against dripping water when tilted up to 15 degrees from normal position.
IPX2. 在正常摆放情况下，保护不受倾斜度超过15度的低落水滴影响.
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IPX3. Protected against spraying water.
IPX3.保护不受洒水影响.
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IPX4. Protected against splashing water.
IPX4. 保护不受所有角度泼水影响.
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IPX5. Protected against low-pressure water jet spray for at least 3 minutes.
IPX5. 3分钟内保护不受所有角度的低压喷水影响.
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IPX6. Protected against heavy jet spray for at least 3 minutes.
IPX6. 3分钟内保护不受所有角度的高压喷水影响.
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IPX7. Protected against the effects of immersion in up to 1 metre of water for 30 minutes.
IPX7.保护设备浸没于水中运行30分钟不受影响.
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IPX8. Protected against the effects of continued immersion in water at depths greater than 1 metre. The exact conditions are specified for each device by the manufacturer.
IPX8. 保护设备浸没于大于1m的水中长时间运行不受影响. 具体环境范围由设备厂商定义.
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防护等级实例
IP68: 最高防护等级，完全防尘防水，可携带游泳。IP65: 常见防护等级，可工作于完全暴露的室外环境。
IP54: 基本防尘防水，可用于潮湿环境，但不能工作在水中。
IP21: 电子产品最基本防护等级，如电视机。
