G/TBT/N/TZA/120

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NOTIFICATION

The following notification is being circulated in accordance with Article 10.6

1. / Notifying Member: Tanzania
If applicable, name of local government involved (Article 3.2 and 7.2):
2. / Agency responsible:
Tanzania Bureau of Standards
MOROGORO/Sam Nujoma Road
Ubungo P O BOX 9524
Tel:+255 222450206
Email: , www.tbs.go.tz
Name and address (including telephone and fax numbers, email and website addresses, if available) of agency or authority designated to handle comments regarding the notification shall be indicated if different from above:
3. / Notified under Article 2.9.2 [X], 2.10.1 [], 5.6.2 [], 5.7.1 [], other:
4. / Products covered (HS or CCCN where applicable, otherwise national tariff heading. ICS numbers may be provided in addition, where applicable): Electricity supply systems (ICS 91.140.50).
5. / Title, number of pages and language(s) of the notified document: Mini-Grid Systems – Part 8: Electricity metering minimum accuracy and environmental requirements (9 page(s), in English)
6. / Description of content: This standard specifies the minimum level of functionality requirements for three phase or single phase, total current, static kilowatt-hour (kWh) meters to be installed in distribution networks of mini-grid systems.
The provisions of this standard apply to:
a) Three phase meters intended to measure 3 phase 4 wire, 230/400V, 50Hz service and to single phase meters intended to measure 1 phase 2 wire, 230V, 50 Hz service.
b) Requirements for accuracy, testing, as well as electromagnetic compatibility, and surge withstand capability requirements of devices used as electricity metering for three phase and single phase service.
7. / Objective and rationale, including the nature of urgent problems where applicable: Protection of the environment; Quality requirements
8. / Relevant documents:
·  Tanzania Government Gazette
·  TZS 629: 2001 (1st Ed) Class 0.5, 1 and 2 alternating current watt-hour meter – Specification
·  IEC 62052-11: Electricity metering equipment (AC) -General requirements, tests and test conditions – Part 11: Metering equipment
·  IEC 62053 -21: Electricity metering equipment (a.c.) - Static meters for active energy (classes 1 and 2)
·  IEC 62053 -23: Electricity metering equipment (a.c.) - Static meters for reactive energy (classes 2 and 3)
·  IEC 62058-11: Electricity metering equipment (AC) - Acceptance inspection – Part11: General acceptance inspection methods
·  IEC 62058-31: Electricity metering equipment (AC) - Acceptance inspection – Part31 Particular requirements for static meters for active energy (classes 0,2 S, 0,5 S, 1 and 2)
·  IEC-60664-1: Insulation coordination within low voltage system including clearances and creepage distance for equipment
·  IEC-60068-2-1: Environmental Testing-Part 2-1: Tests-Test A: Cold
·  IEC-60068-2-2: Environmental Testing-Part 2-2: Tests-Test B: Dry heat
·  IEC-60529: Degree of Protection
·  IEC 61000: Electromagnetic compatibility (EMC) Part- 2-2, 4-2, Part-4-3, 4-4, 4-5, 4- 6, 4-8, 4-11, 4-12.
·  IEC-60664: Insulation coordination within low voltage system including clearance and creepage distance for equipment
·  EN 50470-3: Electricity metering equipment static meters for active energy, Classes A, B and C
9. / Proposed date of adoption: March 2018
Proposed date of entry into force: Upon declaration as a mandatory by the Minister for Industry, Trade and Investment
10. / Final date for comments: 60 days from notification
11. / Texts available from: National enquiry point [X] or address, telephone and fax numbers and email and website addresses, if available, of other body:
Tanzania Bureau of Standards
MOROGORO/Sam Nujoma Road
Ubungo P O BOX 9524
Tel:+255 222450206
Email: , www.tbs.go.tz
https://members.wto.org/crnattachments/2017/TBT/TZA/17_5510_00_e.pdf