ڌماڪي جي ثبوت جي روشني ۽ عام روشنين جي وچ ۾ فرق

ڌماڪي جي پروف لائٽنگ فيڪٽرز روشنين جو هڪ قسم آهن جيڪي ڌماڪي جي حفاظت جي خاصيتن سان ٺهيل آهن, هڪ سان نشان لڳل “مثال” علامت. انهن فيڪٽرز ۾ مخصوص سيلنگ جا خاصيتون آهن ۽ انهن جي جوڙجڪ ۾ اضافي حفاظتي اپاءَ, جيئن قومي معيار جي مطابق. غير ڌماڪي واري روشني جي برعڪس, اهي ڪيترن ئي منفرد گهرجن تي عمل ڪن ٿا:

1. ڌماڪي جي ثبوت جي درجه بندي, گريڊ, and Temperature Group: These are defined by national standards.

2. Types of Explosion-proof Protection:

There are five main types – شعله رو, وڌيل حفاظت, مثبت دٻاء, غير چمڪندڙ, and dust explosion-proof. They can also be a combination of these types or be of a composite or special kind.

3. برقي جھٽڪو تحفظ:

Classified into three categories – I, II, ۽ III. The purpose is to prevent electric shocks from accessible parts or conductors at different potentials, which might ignite ڌماڪيدار مرکب.

ٽائپ I: Based on basic insulation, conductive parts that are normally non-live and accessible are connected to a protective earth conductor in the fixed wiring.

قسم II: Uses double or reinforced insulation as safety measures, without گرائونڊنگ.

قسم III: Operates on a safe voltage not exceeding 50V and doesn’t produce higher voltages.

قسم 0: Relies solely on basic insulation for protection.

Most explosion-proof lighting fixtures fall under Type I, with a few being Type II or III, such as all-plastic explosion-proof lights or explosion-proof flashlights.

4. ملفوظات جي حفاظت جي سطح:

Various protection methods for the enclosure are used to prevent the ingress of dust, solid objects, ۽ پاڻي, which could lead to sparking, short-circuiting, or compromising the electrical insulation. Characterized by “IP” followed by two digits, the first digit represents protection against contact, ٺوس, or dust (کان وٺي 0-6), ۽ ٻيو پاڻي جي خلاف (کان وٺي 0-8). As sealed fixtures, explosion-proof lights have at least a level 4 dust protection.

5. Material of Mounting Surface:

Indoor explosion-proof lights might be mounted on ordinary combustible surfaces like wooden walls and ceilings. These surfaces must not exceed a safe گرمي پد due to the light fixtures.

Based on whether they can be mounted directly on ordinary combustible materials, they are categorized into two types.

Summary – “How are explosion-proof lights different from regular lights?”: Regular lights are used in non-hazardous locations without ٻرندڙ گيس يا مٽي. Unlike explosion-proof lights, they lack explosion-proof grades and types. Regular lights mainly serve illumination purposes, while explosion-proof lights not only provide illumination but also offer explosion protection, ensuring the safety of personnel and preventing property damage.