Nzira dzekugadzira dzakashanduka pamusoro pemakore kubva pamabheji uye tube kuitira kuti mafashoni akwanise kugadziriswa (Greenfield) kuenda kune imwe nhepfenyuro yekambani (NM), denderedzwa (EMT), uye mutambo pasi pevhu (UF) cable. Kubva munenge muna 1890 kusvika nhasi, nzira dzekugadzira dzave dzakachengetedzwa zvakanyanya nekuda kwekuiswa kwema wiring uye kuwedzerwa kwemahwindo epasi. Pakazosvika 1890 na1910, tambo uye tambo yefaira yaiva hasha dzose mukuvaka kweimba.
Mahwendefa ega ega ega akachengetwa munzvimbo dzakakonzerwa neparandain kuvhara mabhaketi.
Vakapfuura nepakati pehuni mumapapiro emapurasitiki akachengetedza jira re rubberized rinoparadza. Uyu mutambo waiva netambo inopisa uye tambo dzisina kutakura dzakanga dzichienderera zvakasiyana kuti dzichengetedzwe uye saka dzaigona kuparadzaniswa pamwechete. Kuti aite izvi, kuvharidzirwa kwacho kwakabviswa, tambo yakanga yakapoteredzwa patafura yakasara isina kuvharwa, uye tsvina yakanga yakasungirirwa pamwe chete isati yasungirirwa kuti ivhare ruvara. Kuwa kwaiva kwaiva netambo yakazarurirwa kune zvose uye kwakanga kusina tambo yevhu yakashandiswa.
Mumakore ekuma1920 kusvika muna1940, magetsi akatora kutendeukira kune rimwe rakati rekuchengetedza wiring, mutambo wakashongedzwa nemaoko. Flex, iyo inozivikanwawo seGreenfield, yakave yakawedzerwa kuwedzerwa kumusha wechipfuva nokuti masvingo ematare anogadziriswa akabatsira kudzivirira mafaira kubva pakukuvara. Kunyange zvakadaro, iyo nzira yekugadzira yakave nematambudziko. Kunyange zvazvo tambo yakachengetedzwa uye kunze kwekunatswa kwesimbi yakavharidzirwa inoita sevhu, pakanga pasina nzvimbo yakasarudzwa pasi.
Kana chifukidzo chisina kufanana chakanga chisina kubatana nechigamba chinotevera kana chakatemwa, kugadzikana kwevhu kwakaparadzana.
Mumakore ekuma1930, nzira yekumisa nokukurumidza yakagadzirwa. Nonmetallic-sheathed cable yakaberekwa uye yakabatanidza jira re rubberized rakaputika, zvakadai semakwati uye tambo yembambo, asi moto unopisa uye usina kwaakarerekera wakanga wakabatana pamwe chete mune iyi sheath.
Yaivawo nezvipingamupinyi zvayo pamusana pekushayikwa kwetambo pasi.
Nenguva isipi muma1940, pakupedzisira yakauya yezera rematope. Izvi zvakabvumira vashandisi kuti vabudze mawaya mazhinji mune imwe nzvimbo yakafanana. Dhiyo pachake inonzi inogadzirisa nzira, asiwo inosiya kubvira kwenzvimbo yeferi yevhu inofanira kutorwa. Chifambiso chave chiri kushandiswa kubva kubva mumazuva iwayo uye chinouya mumhando dzakasiyana siyana uye masero okushandiswa mukati nekunze kweimba yako.
Kuwedzera kwekuwedzera kune wiring kwakatangwa muma1960 kusvika muna 1965. Yaiva nheyo yeNM cable yaisanganisira kushandiswa kwetambo yechitatu, tambo isina ruvara rune simba uye inopisa tambo. Aya madha matatu ose akavanzwa mune rimwe rekunze rekasi rakagadzirwa nepurasitiki vinyl. Ichi chinovandudza chakaita kuti kabhazi risina mari uye rive nyore kwazvo kuisa. Inoshanduka chaizvo uye inoshandiswa nanhasi.
Pamwe pamwe neNM kambo yekushandiswa kwemukati, imwechete kabheji yakaitwawo. Pasi pasi mupfuri wecheka (UF) yakagadzirwa kuti ivigwa zvakananga pasi pasi pasina kuiswa mumudonzvo. Rudzi urwu rwetambo rune kupisa, kusapindira, uye tsvina yevhu inoputirwa mune zvakasimba plastiki vinyl sheath inodzivirira kubva munzvimbo dzisina mvura, mvura, uye zvinhu pasi pevhu.
Ichi chaiva kuwedzera kwezvinhu zvisingadhura kune simba rinoshanda pasi pevhu kune zvinhu zvakadai semwenje yejare uye zvokudya zvinovaka.
Sezvaunogona kuona, zvinhu zvakashanduka zvakajeka pamusoro pemakore kuti ave nani! Iwe unoona, tambo yakagadzirwa-rubber ingangobata kwemakore makumi maviri kana makumi maviri kana makumi maviri asati apera rubber inogona kuoma ndokutanga kuputika. Izvi zvakasara zvakaratidza mahwendefa asingabhadhari anogona kukonzera matambudziko akawanda. Zvinyorwa zveplasitiki zvakaratidzwa kuti zvipedze kutarisira hupenyu hweimba yako uye iyo nzira yakanakisisa yekutambisa. Pamusana peitiro inoshandiswa mubhuku rangu, ndinosarudza dhoni yekuiswa. Neizvi, unokwanisa kudhonza faira nyore nyore, wedzera waya kune dhara (sezvakabvumirwa), uye uve nehurongwa hunodzivirira waya kubva mukukuvara. Ndiyo yose-mu-imwe hurongwa hwekusarudza. Mubvunzo bedzi ikozvino, tichaona chimwe chinhu chikuru chinotevera mune magetsi wiring muhupenyu hwedu?