The ribbon mechanical connector type SLM is for rubber-fabric conveyor belts. The connector is designed for docking conveyor belts which are mounted on conveyors that are operated in mines, sections, quarries and dressing plants including coal mines that are hazardous for gas and / or dust, both with normal and difficult operating conditions.
Clamping brackets of the connector are located in the web belt so that not one of the connector elements appears to the surface - this allows the tape web to remain perfectly flat, thereby the connector does not destroy scrapers and cleaners, main rollers, tension and drive drums.
The engines are designed to operate from a three-phase 50 Hz alternating current network as a drive for stationary machines and mechanisms in underground workings of coal and shale mines that are dangerous for gas (methane) and (or) coal dust.
Climatic performance in accordance with GOST 15150-69: for delivery to the domestic market - U2.5, for export to the CIS countries - UHL2.5
Method of cooling engines IC0151 in accordance with GOST 20459-87.
Engines with a power of up to 200 kW are manufactured for voltages of 380/660 and 1140/660 V, engines with a power of more than 200 kW - for a voltage of 1140/660 V.
The level of protection IP54 is according to GOST 17494-87, the level of protection of the external ventilator from the side of the air inlet is IP20.
Type and level of explosion protection - РВ-3VIA according to GOST 12.2.020-76 for deliveries to the domestic market and RS ExdiaI according to GOST R 51330.0-99 - for deliveries to CIS countries.
Asynchronous motors of ADVR and ADVRP types are designed for operation from a 50 Hz alternating current network as a drive for various mechanisms in mines that are dangerous for the content of mine gas (methane) and (or) coal dust in accordance with the "Safety Rules for Coal Mines" NPAOP 10.1-1.01-05. Engines ADVR-M are designed for driving fans of local airing.
Type of climatic design of engines which are manufactured for the domestic market is U2, 5 and for delivery to the CIS countries - U2.5; UHL2.5 in accordance with GOST 15150.
The engines satisfy the requirements of GOST 183, GOST 22782.0, GOST 22782.5, GOST 22782.6, GOST 24719, GOST R 51330.0, GOST R 51330.1, GOST R 51330.10, GOST R 51330.20.
The motors are manufactured for voltage 1140, 660, 380 V.
Method of cooling of engines - IСА0141 according to GOST 20459.
The level of protection of motors and terminal boxes is IP54 according to GOST 17494, GOST 14254, external fan (if any) on the side of the air inlet - IP20.
The motors have thermal protection of stator windings of type TP111 in accordance with GOST 27888 and GOST 27917. The electric circuit of thermal protection is intrinsically safe according to GOST 22782.5 (ia according to GOST R 51330.10). The temperature is 160-165 ° C for the insulating class H and 140-145 ° C for the insulation class F.
Type and level of explosion protection of engines:
RV 3VIa - for deliveries to the domestic market;
РВ ЕхdіаI - for export to the CIS countries.
They are designed to power a hand-held power tool with a voltage of 127V or 220V, lighting, automation circuits and alarms. There is also the possibility of connecting local lighting up to 0.2 kW.
The electrical circuit of the APShD unit provides protection against short-circuit currents in the outgoing power circuits and in the primary winding of the power transformer; protection against overloading of current collectors; protection against earth leakage currents; blocking the inclusion of the outgoing connection with a decrease in insulation resistance of the power wires below the critical one; protection against loss of controllability in the event of a break or excessive increase in the resistance of the ground circuit and when the remote control circuit is closed; zero protection; protection against self-switching when the mains voltage is increased.
On each outgoing connection it is possible to reverse the hand power tool. It is possible to supply current collectors with voltages of 220 or 127V.
They are designed to protect electrical installations from short-circuit currents as well as for operational switching on and off of electrical circuits under normal operating conditions in three-phase AC networks with a frequency of 50 Hz with an isolated neutral when installed in coal mine workings dangerous for gas (methane) and coal dust.
Provide protection: zero, short-circuit currents, blocking when the insulation resistance of the outgoing connection decreases, loss of control when the remote shutdown wires are closed or broken.