O ka 'ike loea hou, Uila no
Ka Moana keʻa pauku no ka mea hoʻonoho pilina
Uila ua pela paa i loko o ko mākou ola, i ko makou ola me ina transfixed ma ka ulia uila lako ua oki, a ua nana nae lakou imua i ka hiki i ka mea i kukulu hou ia. Mākou i hoopuniia e ka nui helu o kaʻokoʻa nā mīkini home mea e pili ai i kou hale aʻeo ka hoʻolele 'ole' ana ma ka pā mākeke, a ma
I kekahi manawa, he mea pono e hoopaa i ka malamalama i loko o ka aoeaiia caaiea a me nā outbuildings, e puku i ka uea 'ole e ka homemade mailaila aku kaula. A i 'ole ia mea e pono, e hoʻomaulia i ka i kā mākou helu o nā mea i hiki ke ka poʻe komo i loko o kekahi Kolepa ka mea, ua ole e lalana ana ia uea, a wawahi ae la mai ke ahi ku i ka pokole puni. Ma na hihia ia mea e pono ia e ka mālama '-i ka ho omaulia o ka uea nui like' ole e e paulele i loko o ka maluhia o ka hoʻouka kekahi pilina.
He aha uwea e koho?
Ua mea i ike ole ia i ke keleawe i ka haʻahaʻa ia'ku ma mua o Aluminum, a nolaila, i ka wa a hoʻohālikelike i ke keleawe a me ka Aluminum pilina, ma a uea ka ia keʻa pauku, ma ka hihia mua, ka allowable haawe e ia i kekahi mau mea nui. Keleawe uea mea ikaika, softer a aole e uhai ia i mau mea o ka inflexion. No hoi, ke keleawe mea emi susceptible e'okesaside a me ka popopo. Ka wale lanakila o ka Aluminum uea o kona waiwai e lilo aku, i mea ekolu eha paha manawa emi ma mua o ke keleawe.
I ka ho omaulia o ke alakaʻi mele kea-pauku o ka mana
Uea keʻa-pauku, mm² | Keleawe uea (uwea, alakaʻi mele) | |||
Hoʻopilikia i ka kaulahao 220 | Hoʻopilikia i ka kaulahao 380 | |||
mana, kW | papa, A | mana, kW | papa, A | |
1.5 | 4,1 | 19 | 10,5 | 16 |
2,5 | 5,9 | 27 | 16,5 | 25 |
4 | 8,3 | 38 | 19,8 | 30 |
6 | 10,1 | 46 | 26,4 | 40 |
10 | 15,4 | 70 | 33,0 | 50 |
16 | 18,7 | 85 | 49,5 | 75 |
25 | 25,3 | 115 | 59,4 | 90 |
35 | 29,7 | 135 | 75,9 | 115 |
50 | 38,5 | 175 | 95,7 | 145 |
70 | 47,3 | 215 | 118,8 | 180 |
95 | 57,2 | 260 | 145,2 | 220 |
120 | 66,0 | 300 | 171,6 | 260 |
Uea keʻa-pauku, mm² | Aluminum uea (uwea, alakaʻi mele) | |||
Hoʻopilikia i ka kaulahao 220 | Hoʻopilikia i ka kaulahao 380 | |||
mana. kW | amperage. A | mana. kW | amperage. A | |
2,5 | 4,4 | 20 | 12,5 | 19 |
4 | 6,1 | 28 | 15,1 | 23 |
6 | 7,9 | 36 | 19,8 | 30 |
10 | 11,0 | 50 | 25,7 | 39 |
16 | 13,2 | 60 | 36,3 | 55 |
25 | 18,7 | 85 | 46,2 | 70 |
35 | 22,0 | 100 | 56,1 | 85 |
50 | 29,7 | 135 | 72,6 | 110 |
70 | 36,3 | 165 | 92,4 | 140 |
95 | 44,0 | 200 | 112,2 | 170 |
120 | 50,6 | 230 | 132,0 | 200 |
Pehea e nānā i ka uea nui?
Mai na kaula pele i ka hoʻopoepoe keʻa-mahele kinona, ka māhele āpana he pōpilikia ka hoʻohana 'ana i ka haʻilula:
S = π m d² / 4 a S = 0,8 m d², kahi
S - mahele wahi o na conductors ma mm.kv;.
π - 3,14;
D - uea anawaena ma ka mm o.
Kuhi no ka laʻana i ka uea anawaena o 1,3 mm o., A laila, S = 0,8 0,8 • • 1,3² = 1,3 m 1,3 = 1,352 mm.kv.
Ma kekahi eletromontazhnyh hana Pono e hoomanao i ka uila, aole ia e tolerate ole, a aole e kala hewa. Uila maluhia a me ka pono - keia ka mea e mau loa ana me oe imi ka wā e kekahi pou pilina i loko o ka keʻena, e eiooaa? A hale.
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