Lus piav qhia luv luv:

Cov Kev Pabcuam Ib txwm
Qhov siab 1000-3000m;
Qhov ntsuas kub ib puag ncig tsis siab tshaj +40 ℃, tsis qis dua -30C (qhov siab thiab txias tsis qis dua - 40C);
Cua txias tsis tshaj 700Pa; (sib npaug rau cua tshaj tawm 34ms / s);
Kev siv av qeeg tsis tshaj 8 degree;
Cov dej khov tuab tsis loj dua 10 hli;
Txhim kho qhov chaw yuav tsum tsis txhob tawg tau yooj yim cov khoom txaus ntshai, chemistry decays thiab tsausmuag kev co;
Ib tug ncej cais cov qias neeg hauv cov tub: Hom hom yog 0 chav kawm, tiv thaiv hom qias neeg raws li chav II.
Qhov no series rho tawm hloov yog ua raws li 《GB 1985-89 exchanges high pressure insulates tus switch》
IEC129 (1984>) (kev sib pauv hloov pauv qhov hloov pauv nrog txuas ib puag ncig ntawm kev hloov pauv) nrog rau IEC694 (1980) 《high pressure switch equipments with control the equipments to rule with the item》ntau yam thov kiag li.