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南非电能表最新标准NRS 009-4_Edi1_2005
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南非电能表最新标准NRS 009-4_Edi1_2005
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ICS 29.240.99; 91.140.50
ISBN 0-626-16976-3
NRS 009-4:2005
Edition 1
ELECTRICITY SALES SYSTEM
Part 4: National prepayment electricity
meter cards
N
R
S
This rationalized user specification is issued by
the Technology Standardization Department (TSD), Eskom,
on behalf of the
User Group given in the foreword
and is not a standard as contemplated in the Standards Act, 1993 (Act No. 29 of 1993).
Table of changes
Change No. Date Text affected
Correspondence to be directed to Printed copies obtainable from
The NRS Projects Manager Standards South Africa
The Technology Standardization Department (TSD) Private Bag X191
Eskom Pretoria 0001
PO Box 1091
Johannesburg 2000 Telephone : (012) 428-7911
Fax : (012) 344-1568
E-mail : [email protected]
Website : http://www.nrs.eskom.co.za Website : http://www.stansa.co.za
COPYRIGHT RESERVED
Printed in the Republic of South Africa
by Standards South Africa
1 Dr Lategan Road, Groenkloof, Pretoria
NRS 009-4:2005
Foreword
This edition of NRS 009-4 cancels and replaces edition 1.2 of NRS 009-4-1.
The requirements for a prepayment meter number, previously specified in NRS 009-4-2, have been
incorporated into the requirements of NRS 009-6-7, and hence NRS 009-4-2 will be withdrawn. It is
intended that the requirements for national meter numbers for meters other than prepayment
meters will be specified in NRS 057.
This edition results principally from the revision of international normative reference standards, and
does not introduce technical changes to the requirements for prepayment electricity meter cards.
This part of NRS 009 was prepared on behalf of the Electricity Suppliers Liaison Committee (ESLC)
and approved by it for use by supply authorities.
NRS 009 is based on Eskom specification MC114, Requirements specification for a common
vending system for electricity dispensing systems, and consists of the following parts, under the
general title Electricity sales systems:
Part 1: Not used; superseded by SANS 1524-1 and SANS 62051.
Part 2: Functional and performance requirements.
Section 1: System master stations.
Section 2: Credit dispensing units.
Section 3: Security modules.
Section 4: Standard token translators.
Section 5: Error handling.
Part 3: Database format.
Part 4: National prepayment electricity meter cards.
Part 5: Testing of subsystems.
Part 6: Interface standards.
Section 1: Credit dispensing unit – Standard token translator interface.
Section 2: Not used.
Section 3: System master station – Credit dispensing unit.
Section 4: Data transfer by physical media – System master station – Credit dispensing
unit.
Section 5: Not allocated.
Section 6: Standard transfer specification/Credit dispensing unit – Electricity dispenser –
Categories of token and transaction data fields
1)
.
Section 7: Standard transfer specification/Credit dispensing unit – Electricity dispenser –
Token encoding and data encryption and decryption
1)
.
Section 8: Standard transfer specification/Disposable magnetic token technology – Token
encoding format and physical token definition
1)
.
Section 9: Standard transfer specification/Numeric token technology – Token encoding
format and physical token definition
1)
.
Part 7: Standard transfer specification/The management of cryptographic keys
1)
.
1) Parts and sections of NRS 009 which specify the standard transfer specification have been published by the
IEC as IEC/PAS 62055-41, Electricity metering – Payment metering systems – Part 41: Standard transfer
specification.
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