IP21 aik protection rating hai jo ye batati hai ke koi bhi electrical device (jesay inverter, motor ya distribution box) dhool aur pani se kitni mahfooz hai.
IP21 rating bunyadi tor par aisi electrical items mein milti hai jo indoor aur khushk (dry) jaghon par istemal ke liye bani hoti hain. Iska asal maqsad insani hifazat hota hai taake ghalti se koi live parts ko hath na laga sakay.
Yahan kuch aam misalein hain:
1. Solar Inverters aur UPS
Ziada tar gharon mein lagne walay standard solar inverters aur UPS IP21 rated hotay hain.
- Wajah: Inhein thandak aur hawa ki zaroorat hoti hai, is liye in mein bare bare vents (surakh) hotay hain. Ye sirf kamron ya aisi jaghon ke liye hain jahan chat ho aur pani ka koi khatra na ho.
2. Distribution Boards (DB Boxes)
Gharon ke andar lagne walay main switch boards ya DB boxes aksar IP21 hotay hain.
- Hifazat: Ye is tarah design hotay hain ke koi bacha ya bara unglion se andar ke wires ko touch na kar sakay, aur agar chat se halki boond tapkay to wo andar na jaye.
3. Indoor LED Drivers aur Power Supplies
LED strip lights ke chotay drivers ya computer ki power supplies aksar IP21 hoti hain. In mein mitti aur pani se bachao ki koi khas seal nahi hoti.
4. Electric Heaters
Gharon mein istemal honay walay portable electric heaters aksar isi rating mein aatay hain. Inhein bathroom jaisi nam jaghon par istemal karna khatarnak ho sakta hai.
5. Industrial Control Panels (Indoor)
Factory ke andar aise control panels jo bilkul saaf aur dry mahool mein lagay hon, wahan bhi IP21 rating kafi hoti hai.
Yad Rakhne Wali Baat:
|
Kya Kar Sakte Hain |
Kya Nahi Kar Sakte |
|---|---|
|
Kamray ke andar lagayen. |
Kitchen ya Bathroom mein na lagayen. |
|
Ungli lagne se mahfooz hai. |
Barish ya mitti wali jagah par na lagayen. |
|
Dust-free area mein rakhen. |
Direct dhoop ya outdoor mein na lagayen. |
Is code mein do digits ka khaas matlab hota hai:
1. Pehla Digit: "2" (Thos cheezon se hifazat)
Iska matlab hai ke ye device 12.5mm se bari cheezon ke andar janay se mahfooz hai. Sada alfaz mein, agar koi ghalti se apni ungli (finger) is ke andar dalnay ki koshish kare to usay current nahi lagay ga kyunke andar ke parts mahfooz honge.
2. Dosra Digit: "1" (Pani se hifazat)
Ye darja kafi bunyadi (basic) hota hai. Iska matlab hai ke agar device par seedha upar se pani ki boonden (vertical water drops) giren, to wo kharab nahi hogi. Lekin ye barish ya side se anay walay pani ke liye bilkul mahfooz nahi hai.
Khulasa:
- Kahan istemal hota hai? Ye aam tor par aisi jaghon ke liye hota hai jo indoor hon (jesay ghar ke andar ka kamra).
- Khatra: Isay aisi jagah hargiz nahi lagana chahiye jahan nammi (moisture) ziada ho ya barish ka pani parne ka khatra ho (outdoor).
1. IP22 (Pani se thodi behtar hifazat)
- Farq: IP21 sirf seedhi girni wali boondon se bachata hai, jabke IP22 device ko tab bhi mahfooz rakhta hai agar wo 15 degree tak tedi ho aur us par pani gire. Ye aksar indoor appliances mein hota hai.
IP22 rating IP21 se milti julti hai, lekin ye pani ke khilaf thori behtar hifazat farham karti hai. Iska istemal aisi jaghon par hota hai jahan cheezon ke teda (tilt) hone ka imkan ho ya pani ki boonden kisi angle se gir sakti hon.
Yahan un items ki misalein hain jo aam tor par IP22 rated hoti hain:
1. Medical Equipment
Hospital mein istemal honay wali bohat si machines (jesay blood pressure monitors ya portable monitors) IP22 rated hoti hain.
- Wajah: Agar machine thori tedi ho jaye aur us par koi liquid ya pani gir jaye (15 degree ke angle tak), to wo andar nahi jata.
2. Indoor Appliances (Kitchen aur Laundry)
Gharon mein istemal honay wali kuch machines jo bilkul pani ke paas to nahi hotin, lekin jahan thori bohat chhintay ya nami ka khatra hota hai.
- Items: Washing machines ke kuch control panels ya kitchen ke chotay appliances.
3. Indoor Solar Inverters (Behtar Quality)
Kuch achi quality ke inverters jo indoor lagne ke liye banay hotay hain, unhein IP22 rating di jati hai. Ye IP21 ke muqable mein thora ziada mahfooz hotay hain kyunke ye nammi aur kisi had tak slant (tedi) barish ki boondon ko rok sakte hain.
4. Portable Power Banks aur Chargers
Aisay chargers jo thora rough use ke liye banay hon, wo aksar IP22 hotay hain taake agar table par rakha pani un par halka sa gir jaye, to wo foran kharab na hon.
IP21 aur IP22 mein Kya Farq Hai?
|
Feature |
IP21 |
IP22 |
|---|---|---|
|
Pehla Digit (2) |
12.5mm se bari cheez (Ungli) se bachao. |
12.5mm se bari cheez (Ungli) se bachao. |
|
Dosra Digit |
Sirf seedha girne wala pani (Vertical drops). |
15 degree tedi boondon se bachao. |
|
Kahan Behtar Hai? |
Bilkul seedhi fittings ke liye. |
Aisi cheezon ke liye jo hilti hon ya thori tedi hon. |
Zaroori Point:
IP22 bhi Outdoor ke liye bilkul nahi hai. Agar aap Karachi (milte jhulte weather wale aria se Hain to )mein kisi aisi deewar par kaam kar rahe hain jahan halki barish ka spray bhi aa sakta hai, to IP22 nakafi hogi. Wahan aapko kam az kam IP44 ya IP54 lagana chahiye taake electrical circuit short na ho.
2. IP44 (Splashing Water aur Barik cheezon se hifazat)
Agar aap thora agay barhen, to IP44 aik bohat common rating hai.
IP44 rating aisi items mein istemal hoti hai jahan pani ke halkay chhinton (splashes) aur thori bohat gard-o-ghubar se hifazat ki zaroorat ho. Ye rating outdoor aur indoor dono jaghon par kafi popular hai.
Yahan kuch aam misalein hain jahan IP44 ka istemal hota hai:
1. Bathroom Fittings
Bathrooms mein nami (moisture) aur pani ke chhintay parna aam baat hai.
- Items: Mirror ke upar lagne wali lights, ceiling fans, aur wo sockets jo shower se thora faslay par hon.
2. Garden aur Outdoor Lights
Aisi lights jo kisi shed ke neechay hon ya deewar par lagi hon jahan seedhi tez barish na paray lekin pani ki boonden ya dhool ur kar aa sakti ho.
- Items: Wall lanterns, post lights, aur decorative garden lamps.
3. Industrial Plug aur Sockets
Factories aur workshops mein jahan bareek wires ya screws ke girne ka khatra hota hai, wahan IP44 sockets istemal hotay hain. In ke upar aksar aik spring wala dhakkan (flap) hota hai jo inhein dust aur splash se bachata hai.
4. Solar Inverters (Indoor/Semi-Outdoor)
Bohat se inverters IP44 rated hotay hain. Iska matlab hai ke unhein barish mein khula nahi chora ja sakta, lekin wo kisi garage ya balcony mein (jahan chat ho) mehfooz rehte hain.
5. Pumps aur Motors
Choti pani ki motors jo gharon mein istemal hoti hain, aksar IP44 hoti hain taake agar motor par halka sa pani gir jaye to short circuit na ho.
- Safety: Is mein 1mm se bari koi bhi cheez (jesay bareek screwdriver ya wire) andar nahi ja sakti
- Splash Proof: Ye har taraf se anay walay pani ke spray ko rok sakta hai.
- Ip54
IP54 rating un items ke liye hoti hai jo sakht mahool (tough environment) mein behtar karkardagi dikhati hain. Ye rating mitti aur pani ke chhinton, dono se hifazat farham karti hai.
Yahan kuch aam misalein hain jahan
IP54 ka istemal hota hai:
1. Industrial Motors aur Control Panels
Factories aur workshops mein jahan har waqt dhool urti hai aur machines ko pani se saaf kiya jata hai, wahan IP54 rated enclosures istemal hotay hain. Ye bareek mitti ko andar janay se roktay hain taake circuit short na ho.
2. Outdoor Solar Inverters (Heavy Duty)
Achi quality ke solar inverters jo bahar ki deewar par lagaye jatay hain, aksar IP54 rated hotay hain.
- Fayda: Ye Karachi ki nammi (humidity) aur urti hui mitti ka muqabla IP21 ke muqable mein bohat behtar kar sakte hain.
3. Street Lights aur Flood Lights
Roads par lagi lights aur stadium ki bari flood lights IP54 ya us se upar ki hoti hain. Inhein barish aur mitti se her waqt khatra hota hai, is liye in ki sealing kafi mazboot hoti hai.
4. Digital Weighing Scales (Industrial)
Aisi wazan karne wali machines jo warehouses ya mandion mein istemal hoti hain, wahan IP54 zaroori hai taake gandagi ya pani se un ka sensor kharab na ho.
5. Electric Vehicle (EV) Chargers
Gharon ke bahar lagne walay EV charging points aksar IP54 hotay hain taake wo har tarah ke mausam mein bahar lagay reh saken.
IP54 ka Asal Maqsad:
- Dust Protected (Pehla 5): Is ka matlab ye hai ke dhool mitti andar ja to sakti hai lekin itni kam ke machine ke kaam mein rukawat nahi banegi.
- Splash Proof (Dosra 4): Har taraf se anay walay pani ke chhinton se mukammal bachao.
Farq Yaad Rakhen: IP54 aur IP44 mein pani se hifazat barabar hai, lekin IP54 mitti se hifazat mein IP44 se kahin ziada behtar hai. Agar aap aisi jagah kaam kar rahe hain jahan mitti ziada hai, to hamesha IP54 ko tarjeeh dein.
IP55 rating un electrical items mein use hoti hai jahan mitti se hifazat ke sath sath pani ki dhaar (water jets) se bachao zaroori ho. IP54 ke muqable mein ye pani ke khilaf zyada mazboot hoti hai.
Yahan kuch aam jaghen aur items hain jahan IP55 ka istemal lazmi hota hai:
1. Industrial Washdown Areas
Aisi factories ya food processing units jahan machines ko pani ke pipe (hose) se saaf kiya jata hai. IP55 enclosures pani ki us dhaar ko andar janay se roktay hain.
2. Public Area Lighting
Parks, parking lots, aur rasta dikhane wali lights jo khulay aaman mein hoti hain.
- Wajah: Inhein na sirf barish ka samna hota hai balkay safai ke waqt in par pani ki dhaar bhi par sakti hai.
3. External Control Panels
Aise electrical panels jo building ki chhat par ya bahar ki deewar par lagay hon jahan tez hawa ke sath barish (driving rain) ka khatra ho.
4. Heavy Duty Electric Motors
Industrial motors jo mitti wali jagah par hon aur jinhein kabhi kabhar pani se dhoya jaye, wo IP55 rated hoti hain taake windings mahfooz rahen.
5. Car Wash Systems
Car wash ke andar lagay huay sensors, switches, aur boards IP55 ya us se upar hotay hain kyunke wahan har taraf se pani ki dhaar ka dabdaba hota hai.
IP54 aur IP55 mein Farq:
|
Feature |
IP54 |
IP55 |
|---|---|---|
|
Pani se Hifazat |
Sirf halkay chhintay (Splashes). |
Nazzle se anay wali dhaar (Water Jets). |
|
Dust (Mitti) |
Dust Protected (Kafi had tak). |
Dust Protected (Kafi had tak). |
|
Behtareen Istemal |
Covered outdoor ya workshops. |
Open outdoor ya jahan pani se dhoya jaye. |
IP65 rating un items ke liye hoti hai jo sakht outdoor mahool ka muqabla karti hain. Is rating ka matlab hai ke device "Dust-Tight" hai (yani mitti ka aik zarra bhi andar nahi ja sakta) aur ye pani ki dhaar ko bhi rok sakti hai.
Yahan kuch aam items hain jahan IP65 ka istemal hota hai:
1. Outdoor Solar Inverters
Ziada tar achi quality ke On-Grid aur Hybrid inverters jo ghar ki bahar ki deewar par lagaye jatay hain, wo IP65 rated hotay hain.
- Fayda: Ye Karachi ki nammi, samundari hawa, aur mitti se circuit ko mukammal mehfooz rakhtay hain.
2. LED Flood Lights aur Street Lights
Stadiums, parkon, aur gharon ke bahar lagne wali bari flood lights hamesha IP65 hoti hain.
- Wajah: Inhein barish, toofan aur dhool ka har waqt samna hota hai. In ki rubber ki seals bohat mazboot hoti hain.
3. CCTV Cameras (Outdoor)
Aisay cameras jo ghar ke bahar lagay hotay hain aur jin par direct barish par sakti hai, wo IP65 ya IP66 hotay hain taake lens ke andar dhund (fog) ya mitti na jamay.
4. Electrical Junction Boxes (Outdoor)
Outdoor wiring mein istemal honay walay plastic ya metal ke boxes jin mein terminals hotay hain, unhein IP65 hona chahiye. In ke glands aur dhakkan par rubber ki gasket lagi hoti hai jo mitti aur pani ko rokti hai.
5. Industrial Push Buttons aur Switches
Factory machines par lagay huay "Emergency Stop" ya "Start" buttons aksar IP65 hotay hain kyunke wahan tel (oil), mitti aur pani ka spray ho sakta hai.
IP65 Kyun Sab Se Behtar Mani Jati Hai?
- Pehla Digit "6": Ye sab se high level ki hifazat hai mitti ke khilaf. Iska matlab hai "Zero Dust Entry".
- Dosra Digit "5": Ye pani ki dhaar (water jets) se bachata hai.
|
Istemal |
Rating |
Result |
|---|---|---|
|
Indoor |
IP21 |
Sirf ungli se bachao |
|
Covered Outdoor |
IP44 |
Pani ke chhintay |
|
Open Outdoor |
IP65 |
Mukammal Dust aur Barish se bachao |
IP66 rating un items mein istemal hoti hai jahan hifazat ka level bohat sakht chahiye ho. Ye rating IP65 se aik step agay hai; mitti ke khilaf to dono barabar hain (mukammal seal), lekin pani ke muqable mein IP66 kahin ziada taqatwar hai.
Yahan kuch aam items aur jaghen hain jahan IP66 ka istemal hota hai:
1. Samundari Elaiqa (Coastal Areas) aur Marine Gear
Karachi jaise sheher mein jahan samundari hawa mein namak (salt) aur nammi ziada hoti hai, wahan bahar lagne wali cheezon ke liye IP66 behtar hai.
- Items: Ship (jahaz) ki lights, dockyard par lagay huay panels, aur samundar ke qareeb lagay huay CCTV cameras.
2. High-Pressure Washdown Areas
Aisi factories (jesay food ya chemical plants) jahan machines ko bohat tez dhaar walay pani (powerful water jets) se dhoya jata hai.
- Items: Industrial motors, heavy-duty switches, aur sensors.
3. Outdoor Electrical Enclosures (Open Sky)
Aise main distribution boxes ya control panels jo bilkul khulay maidan mein lagay hon aur jinhein toofani barish aur tez hawaon ka samna ho.
- Items: Solar array ke combiner boxes ya outdoor circuit breakers.
4. Heavy-Duty Street Lighting
Highways aur bridges par lagi lights jin par tez raftari se guzarti gariyon ka uchaala hua pani aur keechar parta hai.
IP65 aur IP66 mein Asal Farq Kya Hai?
|
Feature |
IP65 |
IP66 |
|---|---|---|
|
Mitti (Dust) |
Mukammal Seal (Dust Tight) |
Mukammal Seal (Dust Tight) |
|
Pani (Water) |
Pani ki aam dhaar (Water Jets) |
Bohat tez dhaar (Powerful Water Jets) |
|
Pressure |
Kam dabao ka pani |
Bohat ziada dabao (Pressure) ka pani |
Khulasa:
- IP65: Aam barish aur mitti se bachata hai.
- IP66: Toofani barish aur tez pani ki dhaar se bachata hai.
IP67 rating ka matlab hai ke ab hifazat sirf mitti aur barish tak mehdood nahi rahi, balkay ye cheez pani mein doobne (submersion) ki salahiyat bhi rakhti hai.
Yahan kuch aam items hain jahan IP67 ka istemal hota hai:
1. Underground Wiring aur Junction Boxes
Aisi wiring jo zameen ke neechay se guzarti hai, wahan IP67 rated junction boxes istemal hotay hain.
- Wajah: Barish ke baad agar zameen mein pani jama ho jaye ya keechar ho, to ye boxes pani ko andar janay se roktay hain.
2. Waterproof Smartphones aur Gadgets
Ziada tar modern mehngay phones (jesay iPhone ya Samsung S-series) IP67 rated hotay hain.
- Hifazat: Agar phone ghalti se pani ki balti ya swimming pool mein gir jaye (1 meter tak), to wo 30 minute tak kharab nahi hota.
3. Outdoor LED Strips aur Landscape Lights
Aisi lights jo garden mein zameen ke andar (in-ground) lagi hoti hain ya raste ke kinaron par lagi hoti hain jahan pani jama hone ka khatra ho.
4. Marine Electronics (Small Boats)
Choti kashtion par lagay huay radio, sensors ya lights jo lehron ki wajah se pani mein doob sakti hain, wo IP67 hoti hain.
5. Heavy-Duty Connectors
Solar panels ke MC4 connectors ya industrial sensors jo sakht mausam aur pani ke jamao (flooding) wali jaghon par lagay hon.
IP66 aur IP67 mein Farq:
|
Feature |
IP66 |
IP67 |
|---|---|---|
|
Mitti (Dust) |
Mukammal Seal |
Mukammal Seal |
|
Pani (Water) |
Tez dhaar (Jets) se bachao |
Pani mein doobne se bachao |
|
Ghairi (Depth) |
Doobne par kharab ho sakta hai |
1 Meter pani mein reh sakta hai |
|
Waqt |
Sirf spray tak |
30 Minute tak pani ke andar |
Electrician ke liye Zaroori Mashwara:
Agar aap Karachi mein kisi aisi jagah kaam kar rahe hain jahan barish ke baad pani khara ho jata hai (jesay basement ya garden ki zameen), to wahan hamesha IP67 boxes istemal karen.
....IP68 sab se high level ki protection rating hai jo aam tor par electrical aur electronic items mein milti hai. Iska matlab hai ke device na sirf dhool se mukammal mahfooz hai, balkay ye pani ke andar musalsal (permanently) rehne ke liye bani hai.
Yahan kuch aam misalein hain jahan IP68 ka istemal hota hai:
1. Swimming Pool ki Lights
Pool ke andar jo lights lagi hoti hain, unhein her waqt pani ke dabao mein rehna hota hai. Ye lights IP68 hoti hain taake in ke andar moisture ya pani bilkul na ja sakay.
2. Submersible Water Pumps
Gharon ya bore-holes mein istemal honay wali motor jo pani ke andar doobi rehti hai, wo IP68 rated hoti hai. In ki body aur wire ki entry ko is tarah seal kiya jata hai ke gehrai mein pani ka dabao bhi unhein leak nahi kar sakta.
3. High-End Smartphones aur Smartwatches
Aaj kal ke premium phones (jesay iPhone 15/16 ya Samsung Ultra series) aur smartwatches IP68 rated hoti hain.
- Fayda: Inhein pehan kar aap swimming kar sakte hain ya agar phone gehray pani mein gir jaye, to wo kafi der tak mahfooz rehta hai.
4. Underwater Sensors aur Cameras
Samundar ki gehrai check karne walay sensors ya pani ke andar ki video bananay walay khaas cameras IP68 hotay hain.
5. Underground Electrical Joints (Resin Filled)
Aisi wiring jo zameen ke bohat nichay ho jahan her waqt nami ya pani jama rehta ho, wahan IP68 junction boxes istemal hotay hain. Aksar in boxes mein "Resin" (aik khas qisam ki gel) bhar di jati hai taake hifazat 100% ho jaye.
IP67 aur IP68 mein Kya Farq Hai?
|
Feature |
IP67 |
IP68 |
|---|---|---|
|
Pani mein Doobna |
Temporary (Thori der ke liye) |
Permanent (Hamesha ke liye) |
|
Gehrai (Depth) |
Sirf 1 Meter tak |
1 Meter se ziada (Manufacturer par depend karta hai) |
|
Waqt |
Sirf 30 minute tak |
Unlimited waqt tak |
Technician ke liye Mashwara:
Agar aap koi aisi wiring ya light laga rahe hain jis ne pani ke tank (water tank) ke andar ya pool mein hona hai, to kabhi bhi IP67 par bharosa na karen, wahan hamesha IP68 hi lagayen. IP67 waqt ke sath leak ho sakti hai agar wo her waqt pani mein doobi rahay.
IP69 ya IP69K aik aisi rating hai jo aam gharon ya solar systems mein bohat kam nazar aati hai. Ye rating sirf wahan di jati hai jahan bohat sakht safai (Heavy Cleaning) ki zaroorat ho.
Yahan kuch khas items aur industries hain jahan IP69 ka istemal lazmi hota hai:
1. Food and Dairy Processing Machines
Doodh ki factory ya meat processing plants mein safai ka bohat sakht khayal rakha jata hai.
- Wajah: In machines ko din mein kai baar 80°C tak ke ubaltay huay garam pani aur bohat tez pressure walay pipe se dhoya jata hai taake germs khatam ho saken. IP69 rated sensors aur motors is garam dhaar ko bardasht kar leti hain.
2. Pharmaceutical Industry (Dawayon ki Factory)
Dawayen bananay wali machines ko bhi "Steam Cleaning" ya high-pressure washdown ki zaroorat hoti hai. In ke control panels aur switches IP69 hotay hain taake safai ke doran un ke andar pani ya nami ka aik zarra bhi na ja sakay.
3. Cement Mixers aur Waste Trucks (Kachray wali Gariyan)
Aisi gariyan jo bohat ziada gandi ho jati hain aur jinhein saaf karne ke liye "Industrial Pressure Washers" ka istemal hota hai.
- Items: In gariyon mein lagay huay sensors, back-up cameras, aur lights IP69 hoti hain taake jab service station par unhein dhoya jaye, to un ka electrical system kharab na ho.
4. Chemical Plants
Jahan sakht chemicals ya acid ka kaam hota hai aur har waqt tez dhaar se safai karni parti hai, wahan ke electrical enclosures IP69 hotay hain.
5. Car Wash Systems (Automated)
Automatic car wash ke andar jo sensors gari ki position detect karte hain, un par her waqt har taraf se tez dhaar aur garam pani par raha hota hai, is liye wo IP69 rated hotay hain.
IP68 aur IP69 mein Asal Farq:
|
Feature |
IP68 |
IP69 / IP69K |
|---|---|---|
|
Pani ka Dabao |
Sakin (Static) Pani |
Bohat tez dhaar (High Pressure) |
|
Temperature |
Aam pani |
80°C (Bohat Garam) Pani |
|
Asal Maqsad |
Pani mein doobe rehna |
Tez dhaar se dhulna (Washdown) |
Summary:
Agar koi aisi jagah hai jahan machine ko sirf pani mein doobna hai (jesay pool), to IP68 kafi hai. Lekin agar kisi machine ko tez garam dhaar se dhona hai, to phir IP69 lagana parta hai.
Ek electrician ke tor par, aap ko Karachi mein aam kaam (Solar, House wiring) mein IP69 ki zaroorat shayad hi paray, lekin agar aap kisi Food Factory ya Pharmaceutical Plant mein kaam kar rahe hain, to wahan ye rating bohat ahem ho jati hai.
Technically, IP69K protection ratings ki hierarchy ka aakhri darja (highest level) hai. Iske baad mazeed koi standard IP rating nahi aati kyunke ye dust aur pani ke khilaf sab se sakht aur "extreme" hifazat farham kar deti hai.
Lekin, agar aap "is ke baad" ki baat karen to do tarah ki cheezon ka zikr aata hai:
1. Specific Specialized Ratings
IP69K ke baad koi higher number nahi hai, lekin kuch aisi ratings hain jo "Mechanical" hifazat (yaani chot lagne se bachao) ke liye istemal hoti hain, jinhein IK Ratings kehte hain.
- IK01 se IK10: Ye batati hain ke koi enclosure kitne zor ki choat (impact) bardasht kar sakta hai.
- IK10: Iska matlab hai ke agar koi cheez par hathora mara jaye ya koi sakht cheez gire, to wo tootay ga nahi. Factories aur public places mein IP65/66 ke sath aksar IK10 rating mangi jati hai.
2. NEMA Ratings (American Standard)
Agar aap IP ratings (jo ke International standard hain) se bahar niklen, to North America mein NEMA ratings istemal hoti hain.
- Baaz auqat log IP69K ke baad NEMA 4X ya NEMA 6P ki baat karte hain kyunke NEMA ratings mein pani aur mitti ke sath sath Corrosion (zang lagne) aur Ice (baraf jamne) se hifazat ka test bhi shamil hota hai.
IP Ratings ka Poora Safar (Short Summary):
|
Level |
Rating |
Maqsad |
|---|---|---|
|
Basic |
IP21 / IP22 |
Ghar ke andar (Indoor), sirf unglion se hifazat. |
|
Standard |
IP44 / IP54 |
Covered outdoor, halki mitti aur pani ke chhintay. |
|
Outdoor |
IP65 / IP66 |
Mukammal mitti se seal aur barish ki tez dhaar. |
|
Underwater |
IP67 / IP68 |
Pani mein doobne ke liye (1 meter ya us se ziada). |
|
Extreme |
IP69K |
Garam pani (80°C) aur bohat tez pressure ki dhaar. |
NEMA Rating aik American standard hai jo electrical enclosures (boxes) ki hifazat ke liye istemal hota hai. Ye bilkul IP Rating ki tarah hota hai, lekin ye zyada pur-atamaad (comprehensive) hai kyunke is mein sirf dhool aur pani hi nahi, balkay zang (corrosion) aur baraf (ice) se hifazat ka bhi test kiya jata hai.
NEMA ka matlab hai National Electrical Manufacturers Association.
Mashhoor NEMA Ratings aur un ka Matlab:
- NEMA 1 (Indoor):
- Ye bunyadi hifazat hai. Ye sirf hath lagne se aur halki phulki dhool se bachata hai. Ye IP20 ke barabar hota hai.
- NEMA 3R (Outdoor):
- Ye barish aur barf se bachata hai. Ye aksar un boxes mein hota hai jo ghar ke bahar lagay hotay hain (jesay main meters). Ye IP24 ke barabar hota hai.
- NEMA 4 (Watertight):
- Ye barish, mitti aur hose se anay wali pani ki dhaar ko rokta hai. Ye IP65/66 ke barabar hota hai.
-
NEMA 4X (Corrosion Resistant):
- Ye electrician ke liye bohat ahem hai. Is mein "X" ka matlab hai ke ye zang (rust) se bhi mahfooz hai.
- Karachi ke liye: DHA ya Clifton jaisay ilaqon mein jahan samundari hawa zang lagati hai, wahan NEMA 4X sab se behtareen hai.
- NEMA 12 (Industrial Indoor):
- Ye factory ke andar istemal hota hai jahan tel (oil), coolants aur dhool urti hai. Ye IP54 ke barabar hai.
- NEMA 6P (Submersible):
- Ye pani mein doobne ke liye hota hai, bilkul IP68 ki tarah.
NEMA aur IP Rating mein Farq:
|
Khasiyat |
IP Rating |
NEMA Rating |
|---|---|---|
|
Standard |
International (IEC) |
American |
|
Pani/Mitti |
Haan |
Haan |
|
Zang (Corrosion) |
Nahi |
Haan |
|
Baraf (Ice) |
Nahi |
Haan |
|
Oil/Coolants |
Nahi |
Haan |
- Sirf Barish aur Dhool hai: To IP65/66 kafi hai.
- Samundari Hawa aur Zang ka khatra hai: To phir NEMA 4X wala box dhonden, kyunke is ka metal ya plastic zang ko bardasht karne ke liye khas tor par banaya gaya hota hai.
Sameer Ali
Electric & Solar Specialist (Three Phase Expert)
Site ki Photo yahan upload karen
Sameer Ali Three Phase Report
Client Site Analysis: Outdoor/Industrial Grade
[1] Inverter: IP65 ya IP66 Rating laazmi hai taake nami aur dhool se circuit safe rahe.
[2] Wiring: 99.9% Pure Copper UV Resistant XLPE Cable. Standard 4mm ya 6mm Load ke mutabiq.
[3] Breakers: DC Breakers with Silver Contacts. Enclosure NEMA 4X standard ka hona chahiye.
[4] Mounting: Hot-dipped Galvanized Iron (GI) structure with 12mm expansion bolts.
Contact for Installation: 0302-2634311
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