Shenhai Explosion-Proof
Raws li tus Comparative Tracking Index (CTI), Khoom siv hauv enhanced-kev ruaj ntseg hluav taws xob yuav muab zais rau hauv peb theem: Kuv, II, thiab IIa, raws li muaj nyob rau hauv Table 1.9. Raws li tus GB/T 4207-2012 “Txoj kev txiav txim rau qhov kev txiav txim ntawm lub Electrical Tracking Indices ntawm Solid Insulating khoom,” kev kawm tiav cov ntaub ntawv uas siv los ntawm cov ntaub ntawv siv los ua ntaub ntawv yog muab los ntawm cov ntaub ntawv, xav paub meej nyob rau hauv rooj 1.10.
| khoom siv | Piv rau Traceability Index (CTI) |
|---|---|
| Kuv | 600≤CTI |
| II | 400≤CTI<600 |
| IIIa | 175≤<400 |
Tshaj ntawd cov khoom no classification, Cov khoom insulation yuav tsum tau ntsib kev ua hauj lwm kom kub. Yog enhanced-kev ruaj ntseg fais fab koomtxoos hauv permissible abnormal mob ntawm nws lub xeev nyob, Nws cov hauj lwm ntau tshaj plaws txias yuav tsum tsis adversely muaj feem xyuam rau nws cov mechanical thiab hluav taws xob zog. Yog li ntawd, vim, Qhov ruaj khov ntawm cov khoom insulation yuav tsum muaj tsawg kawg yog 20°C ntau dua cov khoom ntau tshaj qhov khoom siv ntau tshaj qhov kub tshaj plaws kev khiav hauj lwm kub, thiab tsis tsawg tshaj 80°C.
| khoom siv | Insulation khoom |
|---|---|
| Kuv | Glazed ceramics, mica, Iav |
| II | Melamine asbestos arc resistant yas, silicone organic pob zeb arc resistant yas, unsaturated polyester pab pawg neeg khoom |
| IIIA | Polytetrafluoroethylene yas, melamine iav fiber yas, epoxy iav khaub ncaws board nrog qhov chaw kho nrog arc resistant paint |
Designers yuav xaiv cov khoom tsim nyog raws li qhov chaw ua hauj lwm voltage ntawm cov khoom hluav taws xob thiab lwm yam uas yuav tsum tau. Yog hais tias cov ntaub ntawv aforemented tsis ntsib lub tsim nyog, Lwm cov ntaub ntawv yuav kuaj thiab qeb siab raws li ib txoj kev ntsuam xyuas (GB/T 4207-2012).
Nws tseem ceeb heev uas yuav tau nco ntsoov tias “khoom siv” xa cov ntaub ntawv uas yog solid thaum lub sij hawm ua hauj lwm. Tej ntaub ntawv, uas yog kua thaum lub sij hawm mov thiab solidify raws li daim ntawv thov, kuj yog solid insulation khoom, xws li insulating varnishes.