KTC113 Mining Locked Amplification KTC113 Mining Locked Amplification I. Overview; KTC113 mine interlocking loudspeaker is an intrinsically safe electrical equipment for mining, suitable for environments with gas and coal dust explosion hazards underground coal mines, as well as harsh environments such as metallurgy, chemical industry, building materials, mines and coal preparation plants, steel plants, thermal power plants, ports, etc. It can be used for voice communication, and when paired with various electrical control devices, it can also shut down and lock equipment (such as motors) to ensure personal and equipment safety. It can also control external equipment, etc. 2、 Environmental conditions for use: (1) Surrounding temperature: -10 ℃~+40 ℃&
(2) Atmospheric pressure: 80-106Kpa< (3) The relative humidity of the environment shall not exceed 95% (25 ℃)&
(4) In areas with gas and coal dust explosion hazards< In an environment without damaging insulation gas or steam&
(6) The pollution level is level 3 and the safety category is level 1< (7) Places with no significant vibration or impact. 3、 Technical features: (1) Working voltage: DC13.5-18V& &nbp;&nbp;&nbp;&nbp;&nbp;&nbp;&nbp;&nbp;&nbp;
(2) Working current:≤ 34mA< (3) The voice intensity of electric H (at 1000Hz) is 95dB (at 1m)&
(4) Voice distortion not exceeding 15%
(5) Warning frequency of 1.5KHz& &nbp;&nbp;&nbp;&nbp;&nbp;&nbp;&nbp;&nbp;&nbp;
(6) The emergency stop locking method is button type
(7) Explosion proof type: Mining intrinsic safety type, marked as Exibi&
(8) Shell protection level: IP54< (9) Outer diameter of introduced cable:Φ 6-12mm, select 4-core (2-core) signal cable&
(10) External dimensions: 360x180x140& nbsp;   Weight: About 8kg IV. Warning: During maintenance, do not change the electrical parameters, specifications, and models of intrinsic safety circuits and components related to intrinsic safety circuits< Intrinsic safety products must not be connected to other equipment that has not undergone explosion-proof joint inspection at will!