Safety precautions when testing high-voltage equipment (1973)

A subway train arrives at a station.

Evening, illuminated advertising in Moscow.

A high-rise building with an Aeroflot advertisement in front of it.

Power transmission lines.

Electrical substation.

Preparing equipment for preventive testing of a power transformer with increased voltage.

Fencing off the testing area.

High-voltage testing work is performed according to work orders.

Example of filling out the work order.

The work order will be handed over to the supervisor at the testing site.

The person permitting the work, together with the responsible manager, checks whether everything is ready for testing.

The delivery and acceptance of the transformer for testing is formalized by signatures on the work order.

The person permitting the work checks the IDs of the team members.

The responsible manager of the work must have a qualification group of at least the fourth, the rest must have at least the third.

Preliminary briefing at the workplace.

One copy of the work order is handed over to the manager of the work, the second remains with the person permitting the work.

Before proceeding with the testing, the transformer is unbusbarized.

The electrical engineering auto lab is grounded and fenced off.

The high-voltage terminal from the test laboratory is suspended on special insulating rods.

Safety regulations for testing.

The auto lab with equipment above and below 1000 volts is divided into two sections.

The door of the auto lab has an electrical interlock.

The foreman gives warning signals.

The tests have begun.

From this point on, access to the car is prohibited.

The voltage is removed.

The foreman grounds the high-voltage equipment, removes the residual voltage.

Reconnection of the high-voltage wire to the next phase of the transformer is carried out in dielectric gloves.

The main cause of electrical injuries during testing.

Filling out a cable testing order.

Transformer station.

Preparation at the substation for testing.

Panorama of urban development.

Transformer point.

Preparing the point for testing.

A set of grounding rods is left next to the cell.

The operational personnel report on readiness for testing.

The inspector, in the presence of the team, checks for the absence of voltage on the cable cores.

Grounding rods are applied.

Admission of the team to testing.

The team prepares the auto lab for work.

The test is conducted.

The observer stands behind the fence and ensures that no one approaches the installation.

Discharging the tested cable core.

The next cable core is tested.

Alternation of frames from the film.