Meter station installation

The supply, installation, maintenance and security of the meter station is the responsibility of the customer. Northpower will provide the metering and control equipment, unless alternative contractual arrangements are made in advance. Customers may provide their own check metering. However, the check meter must be clearly marked as ‘check meter only’.

Where multiple phases are supplied, the customer load should be spread as evenly as is practical across the available phases. In multiple meter installations, it is preferred the controlled meter is positioned to the right or below the uncontrolled meters. Each meter should be labelled with the appropriate tariff code. Each meter station will be clearly labelled with the Installation Control Point (ICP) or premise number provided by Northpower.

Combined meter stations in multi tenanted buildings must have each meter clearly labelled with the flat number or tenant area. Once the meter station is certified under the Electricity Industry Participation Code, a certification label is to be provided. Each installation must be able to be separately isolated at a point on the supply side of the meters. If a non metered supply is provided, a meter station will not be required. However, the installation must still be clearly labelled with the ICP or premise number.

Positioning the meter station on a residential property

All installations must be outside and positioned on the front of the building or structure facing the road or access way, or on the sides of the building immediately adjacent to the front. The meter station must be easily and directly accessible from the road or access way. There must be no fences, walls, obstructions, prickly plants, excessive vegetation, dangerous animals or other hazards that restrict access to the meter station. The meter enclosure shall be weather proof and secure from unauthorised entry and interference.

The meter station should be positioned to avoid direct sunlight, high ambient temperatures, excessive humidity, vibration, mechanical damage or interference from stock. The height of the meter displays should be between 1.4m and 1.75m above ground level and able to be easily read by a standing person.

However, if the meter station is liable to damage from stock the displays may be up to 2.1 metres above the ground. The meters shall be able to be read through a transparent window without having to open the enclosure. If there are hazards or entry restrictions on the property, the meter station should be installed on a suitable structure at an accessible location, e.g. the front boundary.

Positioning the meter station on a commercial or multi dwelling property

The meter station should be located outside (refer to residential requirements). However, it may be located inside the building if necessary for metering requirements or due to unavailability of a suitable outside location. Any inside meter station must be easily accessible during working hours. Access to the meter station should not pass through hazardous, restricted, or specified hygiene (e.g. food preparation) areas. The meters should be able to be easily read by a standing person. The meter station should also be secure and protected from damage. High rise or multi tenanted buildings should have all the meters located in a central area.

Positioning a replacement meter station

When replacing a meter station, it must be installed to meet the requirements of a new installation. The meter station must be accessible, and access to the meter station should not pass through hazardous areas. The meters should be secure and protected from damage. If the meters are inside, a key should be provided or arrangements for access made. Prepay meters can be used with the approval of the Electricity Retailer.

This table provides documents which give guidance on the wiring of meter stations for common situations. It does not cover high voltage metering.

Table of metering diagrams (without distributed generation)

Table of metering diagrams (with distributed generation)

Typical equipment dimensions

Equipment Length (mm) Width (mm) Depth (mm)
Single phase meter – short terminal cover 170 120 120
Single phase meter – long terminal cover 220 120 120
3 phase whole current meter– short terminal cover 170 170 65
3 phase whole current meter– long terminal cover 245 170 65
3 phase CT meter– short terminal cover 220 150 75
3 phase CT meter– long terminal cover 260 150 75
Ripple Receiver (standard) 175 110 75
Ripple Receiver (narrow) 230 85 80
* Ripple Control Contractor 160 75 65
Esmart controller (owned by retailer) 
Refer to Retailer for dimensions

Notes:

Glossary Terms

CT: Current Transformer
HRC: High Rupture Current
ICP: Individual Connection Point
MCB: Miniature Circuit Breaker
RCD: Residual Current Device