Electricity metering

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ENCYCLOPEDIA OF RADIO ELECTRONICS AND ELECTRICAL ENGINEERING
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Section 7. Electrical equipment of special installations

Electrical installations of residential, public, administrative and household buildings. Electricity metering

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Encyclopedia of radio electronics and electrical engineering / Rules for the installation of electrical installations (PUE)

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7.1.59. In residential buildings, one single or three-phase settlement meter (with three-phase input) should be installed for each apartment.

7.1.60. Settlement meters in public buildings, which house several consumers of electricity, should be provided for each consumer, isolated in administrative and economic terms (studio, shops, workshops, warehouses, housing maintenance offices, etc.).

7.1.61. In public buildings, calculated electricity meters should be installed at the ASU (MSW) at the balance delimitation points with the power supply organization. In the presence of built-in or attached transformer substations, the power of which is fully used by the consumers of this building, settlement meters should be installed at the low-voltage terminals of power transformers on combined low-voltage switchboards, which are at the same time the ASU of the building.

ASU and metering devices for different subscribers located in the same building may be installed in one common room. By agreement with the energy supply organization, settlement meters can be installed at one of the consumers, from the ASU of which other consumers located in this building are powered. At the same time, at the inputs of the supply lines in the premises of these other consumers, control meters should be installed for settlement with the main subscriber.

7.1.62. Estimated meters for the general house load of residential buildings (lighting of staircases, offices of house management, yard lighting, etc.) are recommended to be installed in ASU cabinets or on main switchboard panels.

7.1.63. Estimated apartment meters are recommended to be placed together with protection devices (circuit breakers, fuses).

When installing apartment shields in the hallways of apartments, meters, as a rule, should be installed on these shields, it is allowed to install meters on floor shields.

7.1.64. For the safe replacement of a meter directly connected to the network, a switching device must be provided in front of each meter to relieve voltage from all phases connected to the meter.

Disconnecting devices for removing voltage from settlement meters located in apartments should be located outside the apartment.

7.1.65. After the meter connected directly to the network, a protection device must be installed. If several lines equipped with protection devices leave after the meter, the installation of a common protection device is not required.

7.1.66. It is recommended to equip residential buildings with remote meter reading systems.

See other articles Section Rules for the installation of electrical installations (PUE).

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