Centralized Metering: Installation and Requirements
1. Can fuses be installed in a single referral?
Before the counter.
2. What is the minimum section of drivers used for the connection of measurement equipment?
6 mm2
3. What types of cables are used for connections of measuring equipment in counter centralization?
450/750 V, copper, class 2 according to UNE-21,022, insulated dry Extrude based mixtures or thermoplastic thermosets.
4. What color should the section of the cables used for command and control circuits in the centralization of counters be?
Neutral: Blue, protection (earth): yellow/green, Phase: Black or brown (if NIH has 3 phases, the 3rd is gray) and the maneuvering is red.
5. When is a counter used available individually?
Only when it is for a single user supply or two users independently fed from one place.
6. In the case of manipulation occurring in the measuring apparatus in an individual installation, when the meter is placed inside a local home, who is responsible?
About the user if the meter is within the dwelling.
7. In the case of manipulation occurring in the measuring apparatus in an individual installation, when the meter is placed outside the premises or dwelling, who is responsible?
About the owner of the building.
8. Is the placement of a local house counters and measuring equipment forced, when the number of these exceeds what value?
When the number exceeds 16.
9. The local designed to accommodate the centralization of counters, which general requirements will it fulfill?
Height min: 2.3 m Width: 1.5 m Located on the ground floor, mezzanine, or first cellar. Walls and floor of class M0 class M1 Perfectly lit and ventilated, fire extinguisher nearby. According to comply rule: NBE-CPI-96
10. The local designed to accommodate the centralization of the counters, can it be made with the corresponding separation distance at which other premises?
Local boilers, concentration of water counters, gas, telecommunications, machinery or elevators store. Room and garbage storage.
11. Comment on this sentence: Never use the premises for the centralization of counters can be installed in a semi-basement.
It should be installed in a place closer to the entrance door. And it should not be installed up to the semi-basement except when there is a concentration of counters to plants.
12. The local designed to accommodate the counter centralization must have a minimum size of about?
Minimum height 2.3 m, width 1.5 m. Wall to the first hurdle in front must be 1.10 m. Distance between lateral concentration is 20 cm.
13. In the placement of the concentration meter, the distance from the bottom of this to the soil is at least how much?
0.25 m
14. Tell what are the functional units that do not correspond to a concentration of counters.
Functional unit of command and functional unit of telecommunications.
15. Tell the functional unit of a concentration of counters, the placement of which is optional.
Functional unit of telecommunications.
16. The interrupter that is placed in the general power supply in the installation of meters will be concentrated form at least, what characteristics and power supply.
Min.160 A load forecasts for up to 90 KW and 250 A for more than this, up to 150 KW.