Irè n'ala ngwe

Iji nọrọ na nche megide mmadụ na-emerụ mmetụta nke Njirimara nke ọkụ eletrik-eji pụrụ iche na-echebe ngwaọrụ RCD, fuuz, MCB (circuit Oké mmali) na ndị ọzọ nche atụmatụ. The kasị ewu ewu na usoro nke ụmụ mmadụ nche na-ewere dị ka ngwe ala. Nke a akpan akpan earthing ngwaọrụ onye nzube ya bụ jikọọ "ala" nke onye iberibe ọkụ na ngwá. Ma ọ bụ, ndị ọzọ okwu, ejikọrọ ọ bụla ọzọ na kwụ na vetikal electrodes (diverters), enịm n'okpuru ala elu na a ụfọdụ omimi.

On na-eguzogide nke circuit na-emetụta:

• pịnye, ihe owuwu ma na ọnọdụ nke ala;
• Njirimara nke electrodes;
• Omimi electrodes omume;
• ọnụ ọgụgụ nke electrodes.

Ọtọ n'ala ekewa abụọ na ụdị:

• Nchedo - e mere iji chebe ngwaọrụ na ọkụ eletrik na-adịghị circuit, ndị mmadụ si na-emerụ mmetụta nke dị ize ndụ nke ga-eme n'oge nke kpatara.
• Ọrụ - akwado chọrọ arụmọrụ nke eletriki echichi site na grounding nke ya ndụ akụkụ.

The usoro nke na-eke ngwe

Atụla egwu nke ajụjụ nke-esi mee ka a n'ala loop, n'ihi na na-anakọta ya na omume, adịghị akpata nsogbu siri ike. Na ọrụ nke divertors maka grounding nwere ike kwesịrị ekwesị metal akụkụ na obosara nke akụkụ 45 ma ọ bụ 60 mm, ọkpọkọ nke dị iche iche diameters. Grounding atụmatụ na odidi nke a triangle dị mma n'ihi na mgbe a ga-ekwe omume mebiri nke diverter njikọ na otu nke edoghi, yiri edoghi ịnọgide arụmọrụ.

Best ruru eru maka arịọnụ circuit peaty ala ụdị loamy Ona na ụrọ na a elu ogo iru mmiri. The kasị njọ ụdị ala - nkume ala.

Ọ na-atụ aro na-ahọrọ otu ebe na-akpọkọta n'ala loop, ihe kacha ọnọdụ nwere ike ga-atụle ka ebe gburugburu switchgear. Grounding ka ọla kọpa alloys ma ọ bụ nke a nwa ma ọ bụ kpaliri ígwè enweghị eserese.

Shọvel gwuru a dọrọ n'ụdị a triangle, n'akụkụ nke 3 mita, omimi bụ obere - 0.5-0.8 mita. The triangle vertices hammered ígwè earthing ogologo 2.5-3 m. Na nsọtụ nwere ike mụwo na metal mfe ebe n'ala. N'elu ala idobere bit, ruo 20 cm, na-welded na kwụ ígwè iyipu ha, na-eduga na ike eletriki ọta. Weld agaghị enwe n'ekpere na-aka mgbochi corrosion agba ma ọ bụ, n'ihi na ihe atụ, bitumen.

Mgbe arịọnụ rụọ ọrụ n'ihe circuit n'ala, nke akara n'ihe a rụrụ na ya iguzogide larịị. Nke a na-eme site na ngwaọrụ, nke a na-akpọ megohmmeter. Mgbe e mesịrị ugboro ugboro nha Ọ dịkarịa ala 1 oge kwa afọ. N'ihi nke a site grounding ngwaọrụ ga-emechi circuit na wuru eletrik, mgbe ahụ, na-eme ka akara nha sekit voltaji dobe. Near isi electrode ewekarị inyeaka na jikọọ na ya ka isi iyi. Mita ofu nwere nso efu ịdị ukwuu nke voltaji dobe na isi electrode. Nke a na usoro nwere grounding circuit tụrụ karịa ụzọ ndị ọzọ.