theu 613: Khi van hanh maybi~n ap (1) va euOn di¢n khang . e6 dAu (2) pMi bao dam sl! llimvi¢<: eb3e eMu va lau dlii clia
chung Mng caeh:
- Giam sat nhi¢t dO, eM. dO ph\l tai va mile di¢nap. - .Giam sal nghiem m~t tieu ehulln v~ eMt II1QngdAu va
~e tinh caeh di¢n.
- Bao quan t6t cae trang bi llim mat, di~ll ehinh di¢n ap, Mo v¢ dau va cae trang bi We.
(1) Nhilng yeu chu d~ ra coo may bi~n ap dAu ap d\lng eho
eli may bi~n ap tl! nglIu.
(2) Til day gQi tal la euOn di¢n khang.
meu 614: May bi~n' ap (cuon <lien khang] co trang bi bao v¢ ro Ie hoi, phai d<it sao eho nap may co dO nghieng cao v~
phia ro Ie hoi it nhat la 1,0 - 1,5%, con 6ng diin dau Iii may
bien ap (cuon dien khang)d~n binh dAuphupMicO dOnghieng
it nh3t la 2-4%. Phan tr6ng caa 6ng phong n6 pMin6i voi phan tr6ng cua binh dau phu, Khi can thay mang n6 'caa 6ng phong n6 phai thay bang cai nrong tl! voi cai caa nh~ may eM tao,
Dieu 615: Ole bO phan b6 tri tren cao (til 3m troJen) cua cac may bien ap (cuon dien kMng) dang lam viec khi quan sat
phai c6 cac thang ~t c6 dinh va pMi thl!e hien dung cac quy dinh ve ky thuat an toan,
Dleu 616: Ole trang bi phOng chong chay d<it c6dinh, trang bi thu gom dau dudi may bien ap (~uOn di¢n khang) va cac 6ng xa dau til d6 ra phai duoc bao quan trong trang thai san sang lam viec,
l)wu 617: Tren vo may bien ap (cuon di¢n khang) ~tngoai troi phai ghi kY hieu chi ro 56 lieu cua nha may hoac caa tram va ten goi thong nhat theo quy dinh cua dih dO. Ciing pMi ghi nhilng 1..1 hi¢u nhl1 v*y0 tren clnh eila va0ben trongcae bullng, cae ngan ~t may bi€n ap.
nen vo cae may bi~n ap (cuOn di¢n kMng) mOt pha phiii son mau eua pha tl10ng ilng.
May bi€n ap (cuOn di¢n khang) ~t ngolii trilipbiii son mau sang Mng lo~ison khOng pha eMtph\l gia kim lo~i, ehiu dl1QC tae d\lng clia khi quy~n va tae d\lng C1la dAn.
Dieu 618: Ole dOng co di¢n eUah¢ th6ng lam mat maybi~n
ap (euOn di¢n Wng) thOng thl1ilng pMi dl1QC cap di¢n til hai ngulln. D6ivoi.maybi~nap (euOn di¢n khang) cO dAu tulln hoan ell<lng bile pMi trang bi bO tl! dOng d6ng ngulln dl! phOng (IDD).
Then 619: BO dieu ehinh dien ap dlloi tM (DA1) CUll may bien ap phai thuong xuyen trong tinh trang lam viec; thong thuong bO dieu ehinh nay lam viec t'! dong, PMi kiem tra 5'! lam viec cia bO dieu chinh din cit vao tri 56 ghi tren bO dern 56 lhn tac dong.
fhen 620: Giai I'MI' thOng gi6 cua tram bi€n ap phai bao
dam eho may lam viec voi phu tai dinh mite.
Bien 62i: 0 may bien ap lam mat bang khOng khi va dau
tuan hoan cuong bite (dang KD), va i) may bien ap lam mat bang nuoc va dau tuan hoan cirong bite (dang ND), he th6ng lam mat phai diroc t'! dong d6ng (cat) dllng thoi voi viec dung (cat) may bien ap, Dan phai dllQe lien tuc tuan hoan cuong bite, khOng phu thuoc mite mang tal.
KhOngduoc phep van hanh may bien ap lam mat nhan tao neu khOng dllng thoi dua vao lam viec cac bObao tin hieu ngilng
tuan hoan dau, ngung tuan holm nuoc lam mat hoac ngung quat
gi6.
fhen 622: May bien ap dau lam mat bang quat gi6 (dang
QG) eho I'MI' ngung quat gi6 trong truonghop phu tai dlloi dinh mite va nhiet dO lop dhn phia tren khOng qua 55"e.
He th6ng qU'lt gi6 phili dll<>C t'! dOng d6ng khi nhiet dO dhu d'lt toi 55°eho~e khi ph\! tai d'lt toi dinh mite khOng ph\! thuOe vao nhiet dO dhu.
Dien 623: 0 may bi€n ap lam mat d'lng. ND,ap 5U~t dhn trong binh lllm mat dlln pMi cao bon it nMt 0,2kg/em2 so. voi ap sullt nllOc tuhn hoan.
Phill eho tuhn hoan nllOc ngay.sau khi eh~ybom dau.
Phil~cO bien I'MI' de phOng Me binh lam mat dau,b.om va ling dlhl.nu6c.
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meu 624: Dau trong binh dau ph\! cia may bien ap (cuon dien khang) khong lam viec phai i) mite ngang vach ~u tuong itng voi nhiet dO dau trong may bien ap (euOn dien kMng).
BP·u 625: 0 phu tM dinh mite, n€u nha eM tao khOng quy dinh nniet dOdau thi nhiet dO dhu i) lop tren khOng dllQe cao
quo
+ 7Soe d6i voi may bien ap (cuon dien khang) lam mat
theo dang KD.
+9Soe d6i voi may bienap (euOn dien khang)dau lam mat tl! nhien (dang D) va d6i vai may bl€n ap (cuon dien khang)
lam mat theo dang QG.
+ D6i voi may bien ap (cuon dien khang) lam mat theo dang ND, nhiet dO dau i) dhu vao binh lam mat dau khong duoc
cao qua tire.
Bien 626: Cho I'MI' may bil'n ap dU(le van hanh vol dienap cao bon dinh mite.
a. LAudai 5%, khi phu tai kMng qua phutai djnh mite va
10% khi phu tal khOngqua 0,25phu tai dinh mite;
b. Ngan h~n 10% (dlloi 6gio tmng mot Ilgl!y dem), :IiiphI}
tai khOng qua ph\! tMdjnh mile. .
e. Trong dieu kien 5'! cO, thee qny trinh m~u vl! van hAnh may bi€n ap.
May bi€n ap lam viec theo so dll kh6i voi may pMt dien; may bi€n ap til ngil.n khOng e6 dllu.phan nMnh il di€m trung tinh va may bi€n 011' dieu ehinh n6i ti€p (may bi€n ap b6
snng v6n) dU(le phep lam vil;e lau dAi voi dien ap cao hon dien ap dinh mite 10% khi ph\l tai !chOng qua ph\! tai <linh mile.
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O6i wi may bi~n ap III ng~u co dAu phan nhanh 0 di~m
trung tinh d~ di~uchinh dien ap hoac dl! lam viec voi may bien ap dieu ehinh n6i ti~p, mile tang di¢n ap eho phep dllQe xac dinh thea s6 Ii¢u eUanhll eM tao.