EN 61243-2:1997/A1:2000

SLOVENSKI STANDARD
01-junij-2000
'HORSRGQDSHWRVWMR1DSHWRVWQLGHWHNWRUMLGHO8SRURYQLWLS]DXSRUDERQD
QDSHWRVWLKRGN9GRN9L]PHQLþQR,(&$
Live working - Voltage detectors -- Part 2: Resistive type to be used for voltages of 1 kV
to 36 kV a.c.
Arbeiten unter Spannung - Spannungsprüfer -- Teil 2: Resistive (ohmsche)
Ausführungen für Wechselspannungen von 1 kV bis 36 kV
Travaux sous tension - Détecteurs de tension -- Partie 2: Type résistif pour usage sur
des tensions alternatives de 1 kV à 36 kV
Ta slovenski standard je istoveten z: EN 61243-2:1997/A1:2000
ICS:
13.260 9DUVWYRSUHGHOHNWULþQLP Protection against electric
XGDURP'HORSRGQDSHWRVWMR shock. Live working
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

NORME CEI
INTERNATIONALE IEC
61243-2
INTERNATIONAL
STANDARD
AMENDEMENT 1
AMENDMENT 1
1999-10
Amendement 1
Travaux sous tension – Détecteurs de tension –
Partie 2:
Type résistif pour usage sur des tensions
alternatives de 1 kV à 36 kV
Amendment 1
Live working – Voltage detectors –
Part 2:
Resistive type to be used for voltages
of 1 kV to 36 kV a.c.
 IEC 1999 Droits de reproduction réservés  Copyright - all rights reserved
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61243-2 Amend. 1 © IEC:1999 – 3 –
FOREWORD
This amendment has been prepared by IEC technical committee 78: Live working.
The text of this amendment is based on the following documents:
FDIS Report on voting
78/288/FDIS 78/294/RVD
Full information on the voting for the approval of this amendment can be found in the report on
voting indicated in the above table.
___________
Page 31
5.2.2.3 Influence of interference voltage
Add, after 5.2.2.3, the following new subclause 5.2.2.4:
5.2.2.4 Influence of magnetic interference field
A straight conductor, 25 mm ± 5 mm in diameter, shall be arranged such that there is no
magnetic interference from external sources. This can be achieved by having a 2 m length of
conductor with no magnetic material within 1 m of the conductor.
The conductor shall be connected to an a.c. current source capable of producing 1 000 A, at
the nominal frequency, in the conductor (see figure 12a).
The detector shall be positioned parallel with the conductor. The centre of the indicator shall be
aligned with the centre of the conductor such that the surface of the indicator housing shall be
positioned 50 mm from the surface of the conductor (see figure 12a).
A voltage source separate from that of the current shall be connected between the contact
electrode of the detector and earth. The earth lead of the detector shall be connected to earth.
The test voltage shall be raised until the indication "voltage present" appears. A note of this
voltage shall be made. The test voltage shall then be reduced down to zero.
A current of 1 000 A shall then be passed through the conductor. The test voltage shall be
raised again until the indication "voltage present" appears. A note of this voltage shall be
made.
This part of the test shall be considered as passed if the second voltage measured does not
deviate by more than 5 % from the initial measurement.
The detector shall be turned through 90° such that the centre of t
...