Kev Piav Qhia Luv:

Cov Kev Pabcuam Ib Txwm Muaj
Qhov siab 1000- 3000m;
Qhov kub ib puag ncig tsis siab tshaj +40 ″ C, tsis qis dua -30 C (thaj chaw siab thiab txias tsis qis dua - 40 C);
Cov cua ntsawj tsis pub tshaj 700Pa; (sib npaug rau cua ceev 34ms / s);
Qhov av qeeg muaj zog tsis tshaj 8 degree;
Cov dej khov tuab tsis loj dua 10 hli;
Kev txhim kho qhov chaw yuav tsum tsis txhob tawg yooj yim cov khoom txaus ntshai, chemistry lwj thiab kev co hnyav;
Ib tug ncej cais cov qib qias neeg hauv tus tub: Hom feem ntau yog 0 chav kawm, tiv thaiv hom qias neeg raws li chav kawm II.
Cov koob no Isolating switch yog ua raws li "GB 1985-89 kev sib pauv siab siab insulates lub switch"
IEC129 (1984> (kev sib pauv rwb thaiv tsev lub qhov hloov nrog kev txuas ib puag ncig ntawm lub qhov hloov) nrog IEC694 (1980) "cov khoom siv hloov siab siab nrog kev tswj cov khoom siv los tswj cov khoom" ntau yam kev thov tag nrho.