EHV, HV & MV Installations

Definition of Voltage Class (See Rule 2(1)(av) & Rule 54 of Indian Electricity Rules,1956)

S.No. Voltage Class Abbreviation Max. Voltage under Normal Conditions Variations Allowed 1. Low LV 250 V -6% to +6% 2. Medium MV 650 V -6% to +6% 3. High HV 33,000 V -9% to + 6% 4. Extra High EHV >33,000 V 12.5% to + 10%

EHV & HV Installations

1. Drawing Scrutiny View Procedure 2. Inspection and Issue of Safety Certificate View Procedure

MV Installations

1. MV Generator Inspection View Procedure

Other Inspections

1. Multi Storied Buildings View Procedure 2. Temporary Installations View Procedure

Download Challans

1. Drawing Scrutiny Download Challans 2. Rule 63 Inspection Download Challans 3. Rule 47A Inspection Download Challans

Last Updated On 11-10-2008

Contents owned and updated by O/o The chief Electrical Inspector to Govt,Thiru.vi.ka.Industrial Estate, Guindy,Chennai -600 032

Phone : +91 44 2250 0796; Fax: +91 44 2250 0036; email to:cieg@tn.nic.in or call 1-800-755-7956.