Pravilnik o overitvah števcev električne energije

NDP statičnih števcev jalove električne energije razredov točnosti 2 in 3 so določeni v naslednji preglednici:

+---+------------------+-----------+-------+--------------------+
|   |  Vrednost toka   |   Števci  | Faktor|      NDP ( %)      |
+---+---------+--------+ električne|  moči +----------+---------+
|   |Direktni |Transf. |energije in|       |  Razred  | Razred  |
|   |         |        |obremenitev|       | točnosti |točnosti |
|   |         |        |           |       |    2     |    3    |
+---+---------+--------+-----------+-------+----------+---------+
|1  |5 % I(b) |2 % I(n)|1f / 3f  (L|1      |± 2,5     |± 4,0    |
|   |         |        |(1)L(2)L   |       |          |         |
|   |         |        |(3))       |       |          |         |
+---+---------+--------+-----------+-------+----------+---------+
|2  |10 % I   |5 % I(n)|1f / 3f  (L|1      |± 2,0     |± 3,0    |
|   |(b)      |        |(1)L(2)L   |       |          |         |
|   |         |        |(3))       |       |          |         |
+---+---------+--------+-----------+-------+----------+---------+
|3  |10 % I   |5 % I(n)|1f / 3f  (L|0,5 L  |± 2,5     |± 4,0    |
|   |(b)      |        |(1)L(2)L   |       |          |         |
|   |         |        |(3))       |       |          |         |
+---+---------+--------+-----------+-------+----------+---------+
|4  |10 % I   |5 % I(n)|1f / 3f  (L|0,5 C  |± 2,5     |-        |
|   |(b)      |        |(1)L(2)L   |       |          |         |
|   |         |        |(3))       |       |          |         |
+---+---------+--------+-----------+-------+----------+---------+
|5  |I(b)     |I(n)    |1f /  3f (L|1      |± 2,0     |± 3,0    |
|   |         |        |(1)L(2)L   |       |          |         |
|   |         |        |(3))       |       |          |         |
+---+---------+--------+-----------+-------+----------+---------+
|6  |I(b)     |I(n)    |- /   3f (L|1      |± 3,0     |± 4,0    |
|   |         |        |(1))       |       |          |         |
+---+---------+--------+-----------+-------+----------+---------+
|7  |I(b)     |I(n)    |- /   3f (L|1      |± 3,0     |± 4,0    |
|   |         |        |(2))       |       |          |         |
+---+---------+--------+-----------+-------+----------+---------+
|8  |I(b)     |I(n)    |- /   3f (L|1      |± 3,0     |± 4,0    |
|   |         |        |(3))       |       |          |         |
+---+---------+--------+-----------+-------+----------+---------+
|9  |I(b)     |I(n)    |1f /  3f (L|0,5 L  |± 2,0     |± 3,0    |
|   |         |        |(1)L(2)L   |       |          |         |
|   |         |        |(3))       |       |          |         |
+---+---------+--------+-----------+-------+----------+---------+
|10 |I(b)     |I(n)    |1f /  3f (L|0,25 L |± 2,5     |-        |
|   |         |        |(1)L(2)L   |       |          |         |
|   |         |        |(3))       |       |          |         |
+---+---------+--------+-----------+-------+----------+---------+
|11 |I(max)   |I(max)  |1f / 33f (L|1      |± 2,0     |± 3,0    |
|   |         |        |(1)L(2)L   |       |          |         |
|   |         |        |(3))       |       |          |         |
+---+---------+--------+-----------+-------+----------+---------+
|12 |I(max)   |I(max)  |1f / 33f (L|0,5 L  |± 2,0     |± 3,0    |
|   |         |        |(1)L(2)L   |       |          |         |
|   |         |        |(3))       |       |          |         |
+---+---------+--------+-----------+-------+----------+---------+