CIRCUTOR CIRWATT-B410T Series - Manual (Page 28)

THREE PHASE STANDARD CIRWATT B METER
CIRWATT B THREE PHASE INSTRUCTION MANUAL 28 / 53
If the communications failure coincides with the quarter-of-an-hour period change, and its
duration is longer than 10 minutes, the measurement of the affected periods will be
invalidated, i.e. flag IV = 1.
1.32.4.- Power fail in one or more phases
The measurement for the period in which the failure has occurred is invalidated, IV = 1.
1.33.- Applicable standards
The Cirwatt Type B meter complies with the following standards:
 IEC 62052-11:2004 - Electricity metering equipment (AC). General requirements, tests
and test conditions. Part 11: Measuring equipment.
 IEC 62053-21:2003 - Electricity metering equipment (AC). Particular requirements. Part
21: Static meters for active energy (classes 1 and 2).
 IEC 62053-23:2003 - Electricity metering equipment (AC). Particular requirements. Part
23: Static meters for reactive energy (classes 2 and 3).
 IEC 62056-21:2003 - Electricity metering equipment. Data exchange for meter reading,
tariff and load control. Part 21: Direct local data exchange.
 UNE 20324:1993 - Degrees of protection provided by enclosures (IP Code). (IEC
529:1989).
 IEC 60068-2-11:2000 - Environmental testing. Part 2: Tests. Ka test: Salt mist. (IEC
60068-2-11 (1981-01)).
 IEC 60068-2-5:2000 - Environmental testing. Part 2: Tests. Sa test: Simulated solar
radiation at ground level.
 UNE 207010:2003 - Bar code application for the coding of electrical energy meters.
 IEC 62052-21 (2004-05) - Electricity measuring equipment (AC). General requirements,
tests and test conditions. Part 21: Tariff and load control equipment. (Replaces IEC
61038).
 IEC 62054-21 (2004-05) - Electricity metering (AC) - Tariff and load control - Part 21:
Particular requirements for time switches. (Replaces IEC 61038).
 DIN 43857 (1978-09) - Watthour meters in moulded insulation case without instrument
transformers, up to 60 A rated maximum current; principal dimensions for single-phase
meters.