Saudi Electricity Company work permit system | Explanation in Urdu and Hindi

Saudi Electricity Company work permit system , how many types of work permits are used at SEC Sites, Who will be permit issuer and permit receiver? Requirements for permit issuer and receiver. work permit duration and revalidation, Who is authorized to sign the work permit. Which permits are required to work in substations, Who is C1 and C2, and their limits? explanation of STW/ Sanction to work LOA/ Limitation of access SFT / Sanction for testing HLW/ Hot lines permit PEA/ Portable earth application IER/ Isolation and Earthing request