Chon thiet bi chong set theo nhu cau
Mua mua da den, ben canh nhung tran mua nhu trut nuoc thi hien tuong sam set cung gay nhieu noi lo cho con nguoi. Theo mot ky thuat vien ve cac thiet bi chong set: "Nhieu nguoi tieu dung con chu quan ve su nguy hiem cua set khi mua, cac cong trinh xay dung dan dung thuong khong co he thong chong set. Chi mot so nha biet thu, nha cao tang, cao oc van phong moi lap dat thiet bi chong set hien dai, con lai da phan lam theo kieu co dien la cot thu loi".
Thi truong thiet bi chong set hien co tren 20 nhan hieu, chu yeu la hang ngoai nhap nhu: Leader (Phap), Dynasphy, Novaris (Uc), Sycom, Alltec, Patton, Atlantic, Polyphaser (My), Power House (Nam Phi), Ingesco (Tay Ban Nha)... la cac nhan hieu quen thuoc co mat o thi truong VN da lau. Tuy theo nhu cau, cac ho gia dinh, nha xuong thuong dung kim thu set co chieu cao 5 met, 3 cap do ban kinh bao ve tu 35-120m. Trong khi do, van phong co nhieu thiet bi dien tu can bao ve thi lap dat he thong chong set lan truyen tren duong nguon (tu 1-3 pha), duong tin hieu (duong dien thoai, may fax, anten, he thong mang). Ngoai ra con co he thong dan va thoat set (tram tiep dat) gom day dan set, gieng thoat set do sau tieu chuan 20 met, duong kinh 60 mm. Neu khong dao gieng thi phai dong coc thep boc dong do sau 3 met, tuy nhien hinh thuc nay khong hieu qua bang dao gieng.
Hoa Binh |
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Viet Bao
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