ECOLOGICAL METHOD FOR DETERMINING THE PROTECTION LEVEL REQUIRED FOR ELECTRICAL CIRCUITS IN DEVICES AND APPLIANCES OF VARIOUS INSTALLATIONS AGAINST THE EFFECT OF EXTERNAL ELECTROMAGNETICAL FIELDS

WIPO Patent Application WO/1998/036421

A1

The inventive method consists in determining the current flowing through an electrical circuit element to be tested, for comparison with the permissible value of said element. The circuit is stimulated by means of a low level source transmitting a sinusoidal signal having the same frequency as the predetermined effect of the electromagnetic field. The electromagnetic field radiated towards free space is measured by means of standard measuring instruments; said field is compared with the maximum value of the predetermined electromagnetic field; thereafter, the protection level required for the circuit element is calculated. In order to electrically isolate from the measurement equipment the product to be tested, the circuit is stimulated via an optical cable.

VANCHUROVA LJUDMILA VIKTOROVNA (RU)
BOGOMYAGKOV VIKTOR VLADIMIROVI (RU)
SOKOLOV ANATOLY YAKOVLEVICH (RU)
FROLOV VLADIMIR PAVLOVICH (RU)

PCT/RU1997/000249

August 20, 1998

August 05, 1997

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G N PROIZV PREDPR GNPP REGION (RU)
VANCHUROVA LJUDMILA VIKTOROVNA (RU)
BOGOMYAGKOV VIKTOR VLADIMIROVI (RU)
SOKOLOV ANATOLY YAKOVLEVICH (RU)
FROLOV VLADIMIR PAVLOVICH (RU)

G12B17/02; G01R31/00; H05K9/00; (IPC1-7): G12B17/02; H05K9/00

DE4329130A1	1995-03-02
US3492568A	1970-01-27
SU611322A1	1978-06-15
FR2679038A1	1993-01-15
SU1649693A1	1991-05-15

E. KHABIGER, "Elektromagnitmaya Soomestimost. Osmovy ee Obespechenya v Tekhnike" under Editorship B.K. MAXIMOVA, 1995, "Energoatomizdat" (Moscow), pages 200-202.

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