1.The porcelain pin insulators and pin type insulators are one kind of the overhead line insulators. They are usually used to isolate wires from the physical support just like pole.
2.There are Ansi 55serie of the porcelain pin insulators,Ansi number are as follow: 55-1,55-2,55-3,55-4,55-5; Ansi 56series of them: 56-1,56-2,56-3,56-4,56-5;BS standard of them, p-11-y,p-15-y,p-22-y,p-33-y,p-36-y,p-44-y,pw-15-y,pw-22-y,pw-33-y;AS standard of them: ALP/11/80, ALP/11/275,ALP/22/450,ALP/22/490,ALP/22/480,ALP/22/520,ALP/33/710,ALP/33/920. and DIN Standard of them: St10,St15,St20,St30.
3.One or more porcelain pin insulators can be used on the physical support depends on the application’s voltage. 11kV and 33kV are the most common line voltages. The porcelain pin insulators are including a porcelain insulated body and assembly with the cast iron spindle(long or short).They have ” shed” design which is used to provent the lower part from rain. Brown glaze is in stock and gray glaze is also offered if required by customer.
4.We have supplied thousands and thousands porcelain pin insulators all over world like America, middle east, Europe etc. We supply standard pin insulators and we can also design according customer specific requirements. We have also done type test reports for some of them. Quality control is strictly executed during manufacturing and before delivery. Routine test will be carry out before send to customer to ensure high quality.