procurement of welding receptacles at chp area , receptacle,welding,63a,5pin,w/ rccb/elcb single outlet, wall mounting with decontactors (3p+n+e), cable gland entry additional data: bill of material of each welding socket 1. one ms box with suitable paint & ip 65 protection of minimum size-600(h)*350(l)*200(b) mm & thickness- 20 swg/0.711mm. 2. one abb /siemens make 63a rccb sensitive to 30 ma leakage current. 3. one 5 pin (3 p+n+e) welding plug & socket set of reputed make # jai balaji with ip 67 protection 4. two 4p ,440v, 100a power terminal block suitable for 3.5c*95 sqmm cable connection 5. all internal wiring should be done by 20 sqmm cu wire of suitable colour for ryb phases & neutral (black ) & earth (green). 6. all boxes should be painted with antirust coating. => limited