Protection of cable rooms from fires (1970)

The territory of a metallurgical plant, in the frame there are various structures, buildings, trains with raw materials are moving.

The plant workshop.

Close-up - the silhouette of a steelworker against the background of fire.

The production process in the workshop.

Various shots from the territory of the plant, smoke is coming out.

Power transmission towers, wires, etc.

The underground part of the plant, the basement, a panorama of electrical cables laid along the walls.

Cable lines along the walls.

Various shots with cables, electrical wiring installed in the lower, basement premises of the enterprise.

Cable tunnels in the basement floors of the enterprise.

It is shown how the tunnels are divided into sections by fireproof partitions every 100-150 meters.

Fireproof material is used to seal the passage holes.

It is shown how the fire door of the middle section is fixed in the closed position with the help of springs and latches.

In the frame - cable lines along the walls, a metal door.

The fire resistance of the doors is ensured by their design.

To prevent the door paneling from deforming from fire, a hole is cut in it down to the wood - the soldered cover plate falls off during a fire.

The frame shows a room with cable lines.

Vertically, the cable lines are crossed by clay-asbestos belts every 50-70 meters (to localize the fire).

In the basements, where the cables are laid under the ceiling, they are separated by suspended partitions.

The use of sovelite belts is shown.

Panorama of the tunnel in the basement, cable lines are laid along the walls and ceiling, partitions, etc. are visible.

Close-up - instrument panel with buttons and lights (installation for automatic fire alarm).

The frame shows various fire detectors that react to heat, smoke, infrared radiation.

The emitters send an alarm signal to the receiving station (it is shown how the devices react when smoke appears).

Close-up - instrument panel with buttons and toggle switches.

Close-up - KI-1, DI-1, DPS-038, SI-1 and other detectors.

A room with devices, a control panel along the walls, in the center of the room at a table sitting employees of the enterprise's operations center.

An employee at the table picks up the phone, answers a call.

Close-up - a control panel with buttons and toggle switches.

Detectors on the ceiling in the tunnel, a panorama of the walls where the cable lines run.

Diagram of the foam extinguishing system for a fire in cable rooms.

The system consists of a tank with a foam generator, a pump that supplies water, a mixer, distribution devices through which the extinguishing solution is supplied to the foam generators in the cable rooms.

In the frame - the room of the foam generator station (there are generators, various equipment, etc.).

In the frame - the manual duplication control panel of the automation, which is located on the foam generator station.

Close-up - dry pipes through which the emulsion goes.

Panorama of the cable room.

Close-up - detectors on the ceiling, in the frame - a sprinkler head (acts as a valve for the air-inducing system sensor).

The fusible insert melts due to the high temperature and the valve automatically turns on the foam unit.

Sprinkler heads are placed under the ceiling in the cable room at a distance of three meters from each other.

Tunnel, cable systems along the walls.

Shown is a fire extinguishing system with a water curtain (in the cable room).

Close-up - hands unscrewing a large valve.

Dry pipes are grounded, showing how such a system works, water is flowing.

Different shots with cable lines during the operation of such a system (water is flowing).

Basements, tunnel, cable lines run along the walls.

Shown are devices for extinguishing with chemical composition 3.5. The piping layout is the same as for foam extinguishing, only here, not foam, but gas is supplied through spray nozzles, suppressing the fire (close-up - spray nozzle).

The frame shows a cylinder station where cylinders of gas for extinguishing fires are stored.

The frame shows a mobile unit for local fire extinguishing with carbon dioxide.

The frame shows cylinders of gas and a reel of cable.

A trolley with a mobile unit is moving.

A large cable room, a man is moving a trolley with a mobile unit for extinguishing fires.

A special shield with a shovel, fire extinguishers, etc. is installed in the cable room.

Panorama of cable lines along the walls in the tunnel.

The process of automatic fire extinguishing in the cable room is shown.

The cable catches fire, smoke comes out, a bang is heard, an explosion appears.

Fire in the cable room.

The frame shows a sprinkler head.

The fusible insert melts due to the high temperature and the valve automatically turns on the unit.

Close-up - instrument readings.

The alarm on the control panel is triggered, the lights flash, a sound signal is heard.

The word "Fire" is on.

Employees of the fire service of the enterprise at the table, receiving the signal.

Close-up - a foam generator.

A burning cable in a room.

The room is filled with extinguishing foam, the fire gradually decreases and then disappears completely.

Various shots of the room in foam.

Firefighters walk through the foam, checking if the fire is completely extinguished.

Panorama of the tunnel walls, cables in foam.

Metallurgical plant workshop.

The territory of the metallurgical plant, in the frame various structures, workshop buildings, a freight train traveling along the rails.