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Tender For supply of portable single operated rectifier type conventional dc arc welding set-600 ampere capacity suitable for manual arc welding process with warranty/guarantee and test certificate. technical specificatio n as given below: 1. maximum hand welding current @ 60% duty cycle ; 600a and minimum hand welding current @60% duty cycle: 120 a 2. open circuit voltage : 70v (max) and operating arc voltage: 25-44 volt. 3. 3-phase 50 hz, rated input voltage: 3 tapings- 380/415/440 volts. 4. type of cooling : forced air cooled - heavy duty exhaust fan with copper windings, metal body and fan blades. 5. class of insulation and windin g materials : class h insulation with both primary and secondary copper windings. 6. specification to which it conform : is 4559- latest version. 7. type of rectifier- silicon diode. full wave 3-phase bridge rectifier: ty pe with currentregulator, safety norms: earth fault facility & vrd facility. make:- essab, berco, ador or equivalent. [ warranty period: 30 months after the date of delivery ]
Tender For supply of calling on led signal lighting unit with built in currentregulator retrofittable in exis ting cls units as per rdso specification rdso/spn/153/2011. rev.4.1 or latest. [ warranty period: 30 m onths after the date of delivery ]
Tender For supply of led signal lamp for main colour light signal with inbuilt currentregulator conforming to r dso specification no.rdso/spn/199/2010 rev.1.0 with latest amendment for aspect yellow. specn: rds o/spn/199/2010 rev.1.0 [ warranty period: 30 months after the date of delivery ]
Tender For supply of led signal lamp for main colour light signal with inbuilt currentregulator conforming to r dso specification no.rdso/spn/199/2010 rev.1.0 with latest amendment for aspect red specn: rdso/s pn/199/2010 rev.1.0 [ warranty period: 30 months after the date of delivery ]
Tender For supply of led signal lighting unit with build in currentregulator retrofittable in existing cls u nit as per rdso specification no. rdso/spn/153/2011 (rev.4.1) with latest amendment for subsidiary led signal lighting unit ? for shunt signal. [ warranty period: 30 months after the date of delivery ]
Tender For supply of led signal lighting unit with build in currentregulator retrofittable in existing cls unit as per rdso specification no. rdso/spn/153/2011 (rev.4.1) with latest amendment for subsidiary led signal lig hting unit ? for route signal. [ warranty period: 30 months after the date of delivery ]