Tenders for Supply of Surge Protection Devicespd Set Consist Of Coordinate Type Two Numbers Class I/B Spd Confirming To The Table Given Under Pare 3.12.1 A Of Spec. No. Rdso/Spn/215/2018 Version 2.0 With Latest Amendments/Version & One Number Class Ii/C Spd Confirming To The Table Given Under Para 3.12.1 B Of Spec. No. Rdso/Spn/215/2018 Version 2.0 With Latest Amendments/Version, Which Is Reproduced Below: 3.12.1: Stage 1 Protection At The Entry Point Of Input 230V Ac Supply In The Power/Equipment Room A The Stage 1 Protection Shall Consist Of Coordinated Class I/B & Ii/ C Type Spds At The Entry Point Of Input 230V Ac Supply In Power/ Equipment Room In Tt Configuration In A Separate Wall Mountable Box. The Class I/B Spd Shall Be Provided Between Line To Neutral & Neutral To Earth. They Shall Be Spark Gap Type Voltage Switching Device And Tested As Per Iec 61643 With The Following Characteristics And Features. Details Description And Specification As Per Attached Documents.
