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IP66 IP67 IP68 در دوربین مدار بسته

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IP66 چیست؟ منظور از IP67 چیست؟ IP68 در دوربین مداربسته چیست؟ این سوالاتی است که ممکن است در ذهن هرکسی که به تازگی با دنیای نظارت تصویر آشنا شده باشد، پیش می‌آید. در این مقاله به معرفی و بررسی تکنولوژی IP66 و IP67 و IP68 در دوربین های مداربسته می‌پردازیم. 

IP (محافظت در برابر نفوذ) به چه معناست؟

اولین چیزی که باید بدانیم این است که در اینجا IP به معنای تحت‌شبکه نیست، بلکه در دنیای دوربین مدار بسته به‌معنای درجه محافظت در برابر نفوذ (Ingress Protection Rating) یا درجه محافظت جهانی (International Protection Rating) است، که شامل حروف IP است و به‌دنبالش دو عدد می‌آید و بطور اختیاری یک حرف هم می‌تواند بعد این دو عدد بیاید (مثال : IP66 یا IP69K). همانطور که در استاندارد جهانی IEC 60529 تعریف شده، IP میزان محفوض بودن دوربین مدار بسته در برابر دخول اشیای جامد (شامل دست و انگشت افراد)، گردوخاک، تماس تصادفی و آب را درجه‌بندی می‌کند. این استاندارد تلاش دارد اطلاعات بیشتری نسبت به واژهای بازاریابی مبهمی مثل ضدآب، به مصرف‌کنندگان دوربین های مدار بسته ارائه دهد.

اعدادی که بعد از حروف IP می‌آیند، میزان سازگاری با شرایط محیطی مختلفی که در جدول زیر آمده را نشان می‌دهند. بطور مثال یک سوکت که با درجه IP22 در مقابل ورود انگشت و چکیده شدن آب بر رویش محافظ است و آسیب نمی‌بیند. IP22 یا 2X حداقل مشخصه لازم برای تجهیزات الکترونیکی‌ای است که برای استفاده در فضاهای داخلی طراحی شده‌اند.

 

 

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محافضت دربرابر مایعات محافظت دربرابر جامدات محافظت دربرابر نفوذ

 

 

اولین عدد: جامدات

اولین عدد درجه حفاظتی که دوربین مدار بسته در برابر دسترسی به قسمت‌های پرخطرش و دخول اشیای خارجی جامد دارد، را نشان می‌دهد.

 

درجه محافظ در برابر اندازه شی موثر در برابر
0 Not protected No protection against contact and ingress of objects
1 >50mm Any large surface of the body, such as the back of the hand, but no protection against deliberate contact with a body part.
2 >12.5mm Fingers or similar objects.
3 >2.5mm Tools, thick wires, etc.
4 >1mm Most wires, screws, etc.
5 Dust Protected Ingress of dust is not entirely prevented, but it must not enter in sufficient quantity to interfere with the satisfactory operation of the equipment; complete protection against contact.
6 Dust Tight No ingress of dust; complete protection against contact.

 

 

دومین عدد: مایعات

دومین عدد میزان حفاظت تجهیزات داخلی دوربین مدار بسته در مقابل ورود آب را نشان می‌دهد.

 

درجه محافظ در برابر اندازه شی موثر در برابر
0 Not protected
1 Dripping water Dripping water (vertically falling drops) shall have no harmfull effect.
2 Dripping water when tilted up to 15° Vertically dripping water shall have no harmful effect when the enclosure is tilted at an angle up to 15° from its normal position.
3 Spraying water Water falling as a spray at any angle up to 60° from the vertical shall have no harmful effect.
4 Splashing water Water splashing against the enclosure from any direction shall have no harmful effect.
5 Water jets Water projected by a nozzle (6.3mm) against enclosure from any direction shall have no harmful effects.
6 Powerful water jets Water projected in powerful jets (12.5mm nozzle) against the enclosure from any direction shall have no harmful effects.
7 Immersion up to 1m Ingress of water in harmful quantity shall not be possible when the enclosure is immersed in water under defined conditions of pressure and time (up to 1 m of submersion).
8 Immersion beyond 1m The equipment is suitable for continuous immersion in water under conditions which shall be specified by the manufacturer. Normally, this will mean that the equipment is hermetically sealed. However, with certain types of equipment, it can mean that water can enter but only in such a manner that it produces no harmful effects.

 

 

جدول مرجع درجه بندی IP

 

شماره IP اولین عدد - جامدات دومین عدد - مایعات
IP00 Not protected from solids. Not protected from liquids.
IP01 Not protected from solids. Protected from condensation.
IP02 Not protected from solids. Protected from water spray less than 15 degrees from vertical.
IP03 Not protected from solids. Protected from water spray less than 60 degrees from vertical.
IP04 Not protected from solids. Protected from water spray from any direction.
IP05 Not protected from solids. Protected from low pressure water jets from any direction.
IP06 Not protected from solids. Protected from high pressure water jets from any direction.
IP07 Not protected from solids. Protected from immersion between 15 centimeters and 1 meter in depth.
IP08 Not protected from solids. Protected from long term immersion up to a specified pressure.
IP10 Protected from touch by hands greater than 50 millimeters. Not protected from liquids.
IP11 Protected from touch by hands greater than 50 millimeters. Protected from condensation.
IP12 Protected from touch by hands greater than 50 millimeters. Protected from water spray less than 15 degrees from vertical.
IP13 Protected from touch by hands greater than 50 millimeters. Protected from water spray less than 60 degrees from vertical.
IP14 Protected from touch by hands greater than 50 millimeters. Protected from water spray from any direction.
IP15 Protected from touch by hands greater than 50 millimeters. Protected from low pressure water jets from any direction.
IP16 Protected from touch by hands greater than 50 millimeters. Protected from high pressure water jets from any direction.
IP17 Protected from touch by hands greater than 50 millimeters. Protected from immersion between 15 centimeters and 1 meter in depth.
IP18 Protected from touch by hands greater than 50 millimeters. Protected from long term immersion up to a specified pressure.
IP20 Protected from touch by fingers and objects greater than 12 millimeters. Not protected from liquids.
IP21 Protected from touch by fingers and objects greater than 12 millimeters. Protected from condensation.
IP22 Protected from touch by fingers and objects greater than 12 millimeters. Protected from water spray less than 15 degrees from vertical.
IP23 Protected from touch by fingers and objects greater than 12 millimeters. Protected from water spray less than 60 degrees from vertical.
IP24 Protected from touch by fingers and objects greater than 12 millimeters. Protected from water spray from any direction.
IP25 Protected from touch by fingers and objects greater than 12 millimeters. Protected from low pressure water jets from any direction.
IP26 Protected from touch by fingers and objects greater than 12 millimeters. Protected from high pressure water jets from any direction.
IP27 Protected from touch by fingers and objects greater than 12 millimeters. Protected from immersion between 15 centimeters and 1 meter in depth.
IP28 Protected from touch by fingers and objects greater than 12 millimeters. Protected from long term immersion up to a specified pressure.
IP30 Protected from tools and wires greater than 2.5 millimeters. Not protected from liquids.
IP31 Protected from tools and wires greater than 2.5 millimeters. Protected from condensation.
IP32 Protected from tools and wires greater than 2.5 millimeters. Protected from water spray less than 15 degrees from vertical.
IP33 Protected from tools and wires greater than 2.5 millimeters. Protected from water spray less than 60 degrees from vertical.
IP34 Protected from tools and wires greater than 2.5 millimeters. Protected from water spray from any direction.
IP35 Protected from tools and wires greater than 2.5 millimeters. Protected from low pressure water jets from any direction.
IP36 Protected from tools and wires greater than 2.5 millimeters. Protected from high pressure water jets from any direction.
IP37 Protected from tools and wires greater than 2.5 millimeters. Protected from immersion between 15 centimeters and 1 meter in depth.
IP38 Protected from tools and wires greater than 2.5 millimeters. Protected from long term immersion up to a specified pressure.
IP40 Protected from tools and small wires greater than 1 millimeter. Not protected from liquids.
IP41 Protected from tools and small wires greater than 1 millimeter. Protected from condensation.
IP42 Protected from tools and small wires greater than 1 millimeter. Protected from water spray less than 15 degrees from vertical.
IP43 Protected from tools and small wires greater than 1 millimeter. Protected from water spray less than 60 degrees from vertical.
IP44 Protected from tools and small wires greater than 1 millimeter. Protected from water spray from any direction.
IP45 Protected from tools and small wires greater than 1 millimeter. Protected from low pressure water jets from any direction.
IP46 Protected from tools and small wires greater than 1 millimeter. Protected from high pressure water jets from any direction.
IP47 Protected from tools and small wires greater than 1 millimeter. Protected from immersion between 15 centimeters and 1 meter in depth.
IP48 Protected from tools and small wires greater than 1 millimeter. Protected from long term immersion up to a specified pressure.
IP50 Protected from limited dust ingress. Not protected from liquids.
IP51 Protected from limited dust ingress. Protected from condensation.
IP52 Protected from limited dust ingress. Protected from water spray less than 15 degrees from vertical.
IP53 Protected from limited dust ingress. Protected from water spray less than 60 degrees from vertical.
IP54 Protected from limited dust ingress. Protected from water spray from any direction.
IP55 Protected from limited dust ingress. Protected from low pressure water jets from any direction.
IP56 Protected from limited dust ingress. Protected from high pressure water jets from any direction.
IP57 Protected from limited dust ingress. Protected from immersion between 15 centimeters and 1 meter in depth.
IP58 Protected from limited dust ingress. Protected from long term immersion up to a specified pressure.
IP60 Protected from total dust ingress. Not protected from liquids.
IP61 Protected from total dust ingress. Protected from condensation.
IP62 Protected from total dust ingress. Protected from water spray less than 15 degrees from vertical.
IP63 Protected from total dust ingress. Protected from water spray less than 60 degrees from vertical.
IP64 Protected from total dust ingress. Protected from water spray from any direction.
IP65 Protected from total dust ingress. Protected from low pressure water jets from any direction.
IP66 Protected from total dust ingress. Protected from high pressure water jets from any direction.
IP67 Protected from total dust ingress. Protected from immersion between 15 centimeters and 1 meter in depth.
IP68 Protected from total dust ingress. Protected from long term immersion up to a specified pressure.
IP69K Protected from total dust ingress. Protected from steam-jet cleaning.

 

 

منابع:

1. IEC 60529, “degrees of Protection Provided by Enclosures (IP Codes),” Ed. 2.1 (Geneva: International Electrotechnical Commision, 2011)

2. IEC 60529 (Ed. 2.1), clause 4.1.

 

مترجم: احسان کیاستی - فرافن

 

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