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Značajke i primjena telefona zaštićenih od eksplozije

VREME: 2022-08-20 HITS: 69

Značajke i primjena telefona zaštićenih od eksplozije



1: Overview of explosion-proof telephones


The explosion-proof telephone is designed according to a special anti-explosion structure, so that it can still work safely in the complex, harsh and explosive environment. This type of communication equipment is installed in most power plants, industrial and mining plants and chemical plants. In addition, explosion-proof telephones have explosion-proof characteristics on the one hand, as well as the basic function of calling, which can be used as long as the ordinary telephone line is connected.


At present, there are two main classifications of explosion-proof telephones on the market, one is explosion-proof explosion-proof telephones, and the other is intrinsically safe explosion-proof telephones. However, most of the explosion-proof telephones are used in the market, because, compared with intrinsically safe explosion-proof telephones, explosion-proof telephones have a wider range of uses and their performance is relatively high. In addition, the body design of the explosion-proof explosion-proof telephone has a very high degree of sealing, which determines that it has a waterproof function at the same time. According to the experimental test, the waterproof level of the explosion-proof explosion-proof telephone can reach P66. This data Comparable to a very professional waterproof telephone.


2: the working principle of explosion-proof telephone


Explosion-proof telephones were originally developed for flammable and explosive places such as coal mines, and are generally used in H-2 grades in factories and mines. The production of explosion-proof telephones must comply with the "Ministry of One Machinery, Ministry of Coal Industry, Ministry of Petrochemicals: Interim Regulations on Manufacturing Inspection of Safety Spark Type Explosion-Proof Electrical Equipment", and meet the requirements of H-2 explosion-proof.


The explosion-proof telephone adopts protective components and safety barriers to ensure the reliability of safety spark performance. Its ringing coil, induction coil and other components are sealed with epoxy resin, so the explosion-proof telephone is safe and reliable when used in the oxygen chamber, and belongs to the intrinsically safe equipment.


3: structural materials


The explosion-proof casing of the explosion-proof telephone is made of aluminum alloy casting, and the surface is electrostatically sprayed, which has good impact strength and protection performance. The keypad of the explosion-proof telephone is made of stainless steel, the handle is an outdoor public telephone handle, and the handle rope is an outdoor public telephone metal sheathed cable rope. The circuit components are purchased and produced according to outdoor standards, and the circuit has undergone strict explosion-proof treatment and protection treatment. Anti-noise handles (also known as explosion-proof and anti-noise telephones) can be used for explosion-proof telephones to make calls more clear in high-noise environments.


4: technical indicators of explosion-proof telephone


       1. Ambient temperature: -45~+ 60


       2. Relative humidity:95%


       3. Atmospheric pressure: 80~110 kPa


       4. Environmental noise:60dB


       5. Explosion-proof mark: ExdibBT6


       6. Protection class: IP67


       7. Working frequency: 300~3400 Hz


       8. Ringing tone level:70 dB

 JWBT811 (10)



 5: the scope of application of explosion-proof telephone


       Suitable for Zone 1 and Zone 2 in explosive gas atmospheres


       Suitable for IIA, IIB explosive gas environment


       Suitable for flammable dust environment in Zone 20, Zone 21 and Zone 22


       Suitable for T1~T6 temperature group


       Widely used in dangerous environments such as oil exploration, chemical industry, military industry, pharmaceutical refining, etc., as well as oil depots, offshore oil platforms, oil tankers and other places



JWBT811 (1)JWBT811 (8)

JWBT811 (11) 

Joiwo explosion-proof telephone features:


The telephone can form an independent communication system with the program-controlled exchange and coupler.


       Can be directly connected to the telecommunication network


       After the communication system is formed, each telephone is an independent workstation, and the failure of one of them will not affect the work of the whole system


       After the communication system is formed, the product has an automatic gain function, and the size of the voice does not change with the length of the distance or the number of telephones


       The patented design of the phone shell is waterproof, dustproof, no need for a waterproof cover, beautiful and practical.


       The internal circuit of the telephone adopts the international general double-sided integrated circuit, which has the advantages of accurate numbering, clear communication and stable operation.


       Aluminum alloy die-casting shell with high mechanical strength and strong impact resistance.


       The surface of the shell is sprayed with high temperature electrostatic, which has good anti-static ability and eye-catching color.


       Key components, handles, forks, and keyboards are all produced by our company, with strict quality control and fast after-sales response.








Kako koristiti Joiwo explosion-proof telephone:


       1. The caller picks up the phone and dials the called party's phone numberthe called party's phone rings


       2. The called party hears the ringtonepick up the handset to answer the call, and the two parties talk normally


       3. When the call ends, hang up the handset


       4. The caller picks up the hook and presses the "R" key to call the last dialed number


       Joiwo explosion-proof telephone product appearance and installation dimensions




NingboJoiwo Explosion-proof Technology Co., Ltd. products are mainly used in petroleum, chemical, subway, tunnel, pipe gallery, electric power, highway, ship, wharf, fire protection and other industries. It sells well in various provinces and cities in China and more than 20 countries, and is well received by users.


Vrijednosti tvrtke: altruizam, domišljatost, integritet, borba, inovativnost.


Duh tvrtke: pozitivan, težnja za izvrsnošću.


The company's goal: the world's first industrial communication phone.



NingboJoiwo Explosion-proof Technology Co., Ltd. established the "Joiwo" brand operation team at the beginning of its establishment. With its high-quality products and services,Joiwo has become a network supplier for many well-known enterprises at home and abroad. Its products are widely used in pipe gallery, high-speed , tunnel, petroleum, chemical, coal, electric power, railway, metallurgy, shipbuilding, fire protection and other industries, selling well in domestic provinces and cities and more than 20 countries, well received by users.



Ningbo Joiwo Explosionproof Science & Technology Co., LTD         

Dodati: br. 8 Srednji put Guoxiang most Lanjiang ulica Yuyao Zhejiang 315400

Tel: + 86-574-58223625 / Mobitel: +8613858299692

E-pošta: sales@joiwo.com / 2851335081@qq.com.

Skype: yyxlong01

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