NBN EN 61358 : 1996

Introduction
1 Scope
2 General remarks
3 Normative references
4 Definitions
5 Acceptance conditions for batches
6 Place of inspection
7 Test conditions
8 Inspection and test procedure
9 Requirements corresponding to different inspection
     procedures
Tables
1 Reference conditions
2 Uncertainty of measurement
3 AC voltage tests
4 Starting current
5 Test points and limits of errors
6 Acceptance number c
7 Example of using random numbers
8 Sample plans
9 Double sampling plan
10 Specified values for the standard deviation method
11 Specified values for the average range method
12a Operating characteristic curves N<-100
12b Operating characteristic curves 101<-N<-500
12c Operating characteristic curves 1-1<-N<-1000
13a Acceptance trapezium, T = 3.5%
13b Acceptance trapezium, T = 3.0%
13c Acceptance trapezium, T = 2.5%
14 Inspection sheet
15 Random numbers
Figures
1 Diagram of the single sampling plan
2 Diagram of the double sampling plan
3 Acceptance trapezium (standard deviation method)
4 Acceptance trapezium (average range method)
Annexes
A (normative) Symbols
B (informative) Bibliography
ZA (normative) Normative references to international
     publications with their corresponding European
     publications

Describes 100% inspection or sampling inspection before acceptance by the purchaser of newly manufactured direct connected alternating current static watt-hour meters of classes 1 and 2, produced and delivered in quantities of 50 and above.