List of Approved Utilities
- NTPC (National Thermal Power Corporation Ltd., India)
- Tata Power, India
- R-Infra Ltd., India
- KPTCL (Karnataka Power Transmission Corporation Ltd., India)
- PSPCL (Punjab State Power Corporation Ltd., India)
- MSETCL (Maharashtra State Electricity Transmission Corp. Ltd., India)
- MSEZL (Maharashtra Special Economic Zone Ltd., India)
- HVPNL (Haryana Vidyut Prasaran Nigam Ltd., India)
- TNEB (Tamil Nadu Electricity Board, India)
- TANTRANSCO (Tamil Nadu Transmission Corp., India)
- TANGEDCO (Tamil Nadu Generation & Distribution Corp., India)
- WBSETCL (West Bengal State Electricity Transmission Corp. Ltd., India)
- TSTRANSCO (Transmission Corporation Of Telangana Ltd.)
- PGCIL (Power Grid Corporation of India Limited)
- OPTCL (Odisha Power Transmission Corporation Ltd.)
- KSEB (Karnataka State Electricity Board)
Type Tests
- IP 68 Test
- 25 kV HV Test
- Short circuit current Test
- Lightning Impulse voltage withstand Test
- Contact resistance measurement Test
- GETCO (Gujarat Energy Transmission Corporation)
- TPDDL ( Tata Power Delhi Distribution Limited)
- Indian Railways
- DTL (Delhi Transco Limited)
- UPPTCL (Uttar Pradesh Power Transmission Corporation Limited)
- PGCB (Power Grid Company of Bangladesh)
- DMTCL (Dhaka Mass Transit Company Ltd.)
- MMRCL (Mumbai Metro Rail Corporation Ltd.)
- DMRCL (Delhi Metro Rail Corporation Ltd.)
- AP Transco (Andhra Pradesh State Electricity Board)
- BSPTCL (Bihar State Power Transmission Company Ltd.)
- AEGL (Assam Electricity Grid Corporation Ltd.)
- HPSEBL (Himachal Pradesh State Electricity Board)
- JUSNL (Jharkhand Urja Sancharan Nigam Limited)
- EIL (Engineers India Limited)
- MEW (Ministry of Electricity & Water, Kuwait)
- AM/NS India (Arcelormittal Nippon Steel India, Hazira Gujarat)