This Technical Specification is a summary of the minimum requirement for the design, manufacturing, testing, and supply of single-phase and three-phase alternating current (AC) Smart Prepaid Meters with Time of Day (TOD) and Real Time Clock (RTC) provisions.

It is not the intent to specify completely herein all the details of the design and construction of the meter. However, the meter shall conform in all respects to high standards of engineering, design, and workmanship and shall be capable of performing in continuous operation up to the supplier’s guarantee in a manner acceptable to the purchaser, who will interpret the meanings of drawings and specification and shall have the power to reject the meter in his judgment, if not in accordance therewith.

The meter shall be designed and constructed in such a way as to avoid introducing any danger under normal operating conditions to ensure:

  • Personal safety against electric shock
  • Personal safety against the effects of excessive heat
  • Protection against ingress of dust moisture and vermin.
  • Protection against the spread of fire.

The Bidder shall give documentary evidence of conformity of the supplies and works to the technical specification and submit with the Bid the following in the English language:

  • A detailed description of supply essential technical and performance characteristics guaranteed by the manufacturer as requested in the Technical Guarantee Schedule with appropriate drawings and type test certificates.
  • Technical documents to support all materials described herewith and that proposed by the Bidder. The documents shall be comprehensive and be evidenced that the materials conform to the required specifications.
  • Work implementation schedule in days

The Bidder should supply the following technical documents:

  • Description of the operation of the meter
  • Complete circuit diagram
  • Component layout drawings

The Meters and the User Interface shall be clearly marked in BLACK COLOUR with the following:

  1. “Tampering with Energy meters is a crime under the laws of the Federal Republic of Nigeria”
  2. Visible Unique meter number
  3. Serial number
  4. Meter model
  5. Meter variant
  6. Manufacturer’s trade name or trademark or both
  7. JED PLC logo
  8. “Property of JEDC” as may apply to individual Disco
  9. Meter Accuracy class index
  10. Rated voltage and current
  11. Year of manufacture
  12. Specification standard
  13. Overall mass
  14. “Tested” sticker

The meter supply shall be disconnected under the following conditions;

    When the credit balance in the meter reached Zero;
  • When tamper condition is detected
  • When the set power limit is exceeded
  • When the programmed current overload limit is exceeded
  • When the under-voltage limit is exceeded
  • When the over-voltage limit is exceeded
  • Due to abnormal terminal temperature
  • During reverse power flow mode

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