| 摘要 |
<p>The invention relates to a box for tamper-proofing the terminal block of the electric meter. According to the invention, the box for tamper-proofing the terminal block has an assembly (A) made up of a tamper-proofing plate (3) of plastics, with a smooth portion (a) provided with a slit (d) or some orifices (e) allowing some connecting electrical conductors to pass into a terminal block (1) of an electric meter (B), located with an end portion (b) under the terminal block (1), a smooth portion (a) whereon one or two bosses (h) are located, wherein a tamper-proofing lid (4) made of plastics is fastened with a nut (6) and a sealing screw (5), said tamper-proofing lid having a portion (n) covering a wall (f) of the tamper-proofing plate (3) and continuing up to the terminal block (1), said lid (4) being fastened by means of two tamper-proofing screws onto the terminal block (1). In another embodiment, the assembly (A) has a tamper-proofing plate (3) with an end portion (b) located under the terminal block, the fastening on the base plate being achieved between said terminal block and some ears (o) of a base plate (7) of the electric meter, through some orifices (c) of the end portion.</p> |
