What is CEIG approval?

It is the safety clearance given by the Chief Electrical Inspector to Government for high-voltage electrical installations to ensure they follow safety norms.

It is required before energizing any new high-voltage installation (like a transformer or DG set) and periodically for existing installations.

Is it different from the DISCOM approval?

Yes. The DISCOM (like BESCOM or TNEB) provides the 'connection' and 'metering', but the CEIG provides the 'safety clearance' for the equipment.

What is the threshold voltage for CEIG?

Generally, any installation operating above 650 Volts (High Voltage) requires mandatory CEIG approval.

How often do I need to renew the approval?

High-voltage installations usually require a periodic inspection and renewal of approval every year to ensure continued safety.

A Single Line Diagram (SLD) is a simplified notation for representing a three-phase power system, showing how the power flows and where protection devices are located.

Can I do the installation through any electrician?

No. The installation must be carried out and certified by a 'Licensed Electrical Contractor' holding a valid Class A or Class B license from the state board.

What happens if I operate without CEIG approval?

The DISCOM can disconnect your power supply, and you can be held legally liable for any accidents, fires, or damage to the public grid.

Service

CEIG Electrical Approval Online

Apply for CEIG electrical approval for transformers, DG sets, and solar plants. Mandatory for industrial and high-rise commercial buildings.

Ensuring Safe Power Distribution

Apply for CEIG electrical approval for transformers, DG sets, and solar plants. Mandatory for industrial and high-rise commercial buildings.

Compliance for high-voltage installations. Get your electrical drawings and installations approved by the Chief Electrical Inspector (CEIG) for safety and grid connectivity.

The mandatory safety clearance for high-voltage electrical installations. Ensure your transformers, generators, and solar plants comply with the Central Electricity Authority (CEA) regulations.

The Chief Electrical Inspector to Government (CEIG) is the regulatory authority responsible for ensuring the safety of electrical installations in a state. CEIG approval is mandatory for all high-voltage (HV) and extra-high-voltage (EHV) installations, including transformers, DG sets of specific capacities, and large-scale solar or wind power plants. It is governed by the Central Electricity Authority (Measures relating to Safety and Electric Supply) Regulations.

The approval process involves two major stages: the 'Drawing Approval' (before the work begins) and the 'Safety Inspection' (after the installation is completed but before it is energized). The CEIG department verifies that the installation adheres to the Indian Electricity Rules, focusing on earthing, clearances, and the rating of protection equipment like circuit breakers and relays.

QuickTaxperts provides specialized technical liaison for CEIG approvals. We work with certified electrical contractors and consultants to prepare your single-line diagrams (SLD), coordinate with the inspector for site visits, and ensure all test reports from authorized labs are in order.

Category: Consultation
Mandatory for all industrial plants with high power consumption.
Required for high-rise commercial buildings and malls.
Ensures the safety of personnel handling high-voltage equipment.
Prevents catastrophic failures that could lead to factory downtime or fires.
Mandatory for installations above 650V
Covers Transformers, DG Sets, and HV Switchgear
Required for both fresh installations and periodic renewals
Ensures protection against electrical fires and accidents

Establishments Requiring CEIG Approval

Based on voltage levels and equipment types.

Transformers: Any installation involving a step-down or step-up transformer (usually above 250kVA).
DG Sets: Diesel Generator sets of high capacity (varies by state, usually above 10kVA to 100kVA).
Solar Power Plants: Both rooftop and ground-mounted solar installations above a certain capacity.
High-Rise Elevators: Specific approval for lift and escalator installations in multi-story buildings.

Documents required

Document requirements vary by entity type, state, premises, and authority. These are the usual groups we verify before submission.

Technical Documents: Single Line Diagram (SLD) of the electrical system.; Equipment Layout Plan showing clearances.; Technical Data Sheets for Transformers/DG Sets.; Earthing Layout and Earth Pit test reports.; Insulation resistance (Megger) test reports.; Calibration certificates for relays and breakers.
Administrative Documents: Work Completion Certificate from a Licensed Electrical Contractor.; Power Sanction Letter from the DISCOM (BESCOM, MSEDCL, etc.).; PAN and Aadhaar of the owner/promoter.; NOC from the local municipal body.; Copy of the previous approval (for renewals).

Our CEIG Approval Workflow

From blueprint to power-on in five steps.

Step 1: Drawing Preparation: Coordinating with electrical consultants to prepare the SLD and layout as per CEA norms.
Step 2: Submission for Approval: Filing the drawings with the CEIG office for technical scrutiny and obtaining the 'Drawing Approval' letter.
Step 3: Installation & Testing: Ensuring the electrical contractor completes the work and provides all mandatory test reports.
Step 4: Inspection Coordination: Applying for the site inspection and coordinating with the Electrical Inspector for the physical verification.
Step 5: Safety Certificate: Receiving the 'Form of Approval' which allows the DISCOM to energize the installation.

Deliverables

After completion, we share organized acknowledgements, references, and next-step guidance for banking, renewals, or future filings.

Approved Electrical Single Line Diagram
CEIG Safety Approval Certificate (Form of Approval)
Earth Pit and Equipment Test Reports
Periodic Inspection Compliance Calendar

Expert review

CEIG Electrical Approval Online content is reviewed by QuickTaxperts Industrial Compliance, Electrical Safety Consultants.

Checklist-led review
Document pre-verification
Authority-specific next steps

Frequently asked questions

These quick answers cover common planning questions before you request a checklist or quote.

What is CEIG approval?: It is the safety clearance given by the Chief Electrical Inspector to Government for high-voltage electrical installations to ensure they follow safety norms.
When is it required?: It is required before energizing any new high-voltage installation (like a transformer or DG set) and periodically for existing installations.
Is it different from the DISCOM approval?: Yes. The DISCOM (like BESCOM or TNEB) provides the 'connection' and 'metering', but the CEIG provides the 'safety clearance' for the equipment.
What is the threshold voltage for CEIG?: Generally, any installation operating above 650 Volts (High Voltage) requires mandatory CEIG approval.
How often do I need to renew the approval?: High-voltage installations usually require a periodic inspection and renewal of approval every year to ensure continued safety.
What is an SLD?: A Single Line Diagram (SLD) is a simplified notation for representing a three-phase power system, showing how the power flows and where protection devices are located.
Can I do the installation through any electrician?: No. The installation must be carried out and certified by a 'Licensed Electrical Contractor' holding a valid Class A or Class B license from the state board.
What happens if I operate without CEIG approval?: The DISCOM can disconnect your power supply, and you can be held legally liable for any accidents, fires, or damage to the public grid.