Protective ground (1979)

Panorama of the transformer station for high voltage lines.

The types of insulators on live parts.

A person electrical engineer.

Types of switchboard high voltage, the scale of the ammeter.

The insulation on the wiring.

The electrician inspects equipment for damage.

The effects of fault isolation in the distribution metal Cabinet, defeat by electric current upon contact with such equipment (animation).

The scheme of the protective earthing of the switch Cabinet (animation).

An electrician walks into a room and begins inspection of the equipment.

Destroyed insulator of the disconnector.

The frame of the disconnector.

The defeat of man by electric current due to the lack of ground at the disconnector (animation).

The system slowing down of the disconnector (animation).

View of the main elements of the grounding device.

Kind of the transformer substation (above).

Level scheme of grounding of electrical installations for various power and common circuit connecting a group of grounding.

(animation).

Panorama and types of transformer substations.

Ways of fastening of connection of the grounding conductors.

The equipment of the substation.

Motors with grounding conductors that are installed on a concrete stand.

The type and color of the ground conductor.

Invalid connection diagram grounding conductors on electric motors, open circuit ground (animation).

Grounding system of a group of motors with separate earthing conductors (animation).

Electricians on substation.

Installation of stationary grounding blades for repair, face electrician.

The types of earthed conductive parts of the equipment.

Panorama substation electricians the transmission line towers (above).

The use of grounding devices in the absence of grounding blades.

Wire for temporary earthing.

Electricians install portable grounding before beginning repairs.

The strengthening of the portable grounding to a metal structure using the clamp, electricians to carry out repairs.

Use the metal rod as the earthing in the absence of grounded metal structures.

Grounding wire, reinforced with metal rod.

Installing ground rods, sinking them into the ground.

The consequences of the use of lay on the ground (animation).

Attaching the grounding wire to the grounding with clamps.

Established by the rules of the grounding system, electrical work on the pole.