When the low-voltage overhead line supplies power to the interior of the building, the overhead distribution line leads to a section between the first support point of the building's exterior wall (such as the house crossarm), or one user receives another user. The line is called the subscriber line.
2. Requirements:
(1) The feeder line is connected by the pole of the power supply line, and the gear distance should not be greater than 25m. When the terminal is over 25m, the receiver pole should be set, and there should be no joint in the span.
(2) The insulated wire shall be used for the connection line. The wire cross-section shall be selected according to the current carrying capacity, but shall not be less than the values ​​listed in Table 4-15.
(3) The height of the line of the receiver should not be less than the following values: 6m for the open street, 3.5m for the traffic lane, 3.5m for the sidewalk, 3m for the hutong, and no less than 2.5m for the minimum.
(4) The distance between the low voltage receiver lines.
(5) The entry line should be protected by pipes, and rainproof measures should be taken. The outdoor end should be fixed by insulators.
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