... Porcelain. This pin type insulator is used for all circuit and power station standard: IEC, ANSI,BS, DIN AND GB etc A pin ... rigidly on a supporting structure by an insulator pin passing up inside the insulator. Unless otherwise stated ... , this term does not include the insulator pin. Standard: IEC, ANSI, BS, AS, DIN, CAN ... in accordance wih the customer's drawing pin type insulator