Safety measurements of electrical installations based on CEA (Measures relating to safety and electric supply) Regulation, 2022 and standards: IS 732, IS 3043, IS/IEC 62305, IEC 61557.

This training will help you understand testing of low voltage electrical installations and requirements of relevant Indian laws and standards.

1. LEGAL REQUIREMENTS FOR ELECTRICAL SAFETY MEASUREMENTS (CEA REGULATIONS, NEC, INDIAN STANDARDS)
   • Based on Central Electricity Authority (Measures relating to safety and electric supply) Regulation, 2022 and standards IS 732, IS 3043, IS/IEC 62305, IEC 61557
   • Requirements for personnel working on electrical installations
   • Requirements for electrical installations
   • Requirements for the measuring equipment
   • Requirements for electrical tests
2. ELECTRICAL SHOCK PROTECTION (CEA REGULATIONS, NEC, IS732)
   • Types of electrical networks (IS 732)
   • Automatic disconnection of supply - fault loop measurement (IS 732)
   • Continuity measurement (IS 732, IS 3043)
   • Types of Residual Current Devices (RCD) (IS 732)
   • Measurements of RCD parameters (IS 732)
   • Examples
3. INSULATION RESISTANCE MEASUREMENT (CEA REGULATIONS, NEC, IS732, IEEE)
   • Requirments of standards: CEA Regulation, IS 732, ANSI NETA, IEEE
   • Factors influencing insulation
   • Measurements of insulation resistance
   • Measurements of other parameters defining insulation
   • Examples
4. EARTH RESISTANCE AND SOIL RESISTIVITY MEASUREMENTS (CEA REGULATIONS, NEC, IS732, IS3043, IS/IEC62305)
   • Physical conditions for measurements, (IS 732, IS 3043)
   • Measurement methods: 3-pole, 4-pole, 3-pole with clamp and 2-clamp,
   • Measurements of transmission towers
   • Measurements of extensive earthing systems
   • Measurement of earth impedance with impulse method (IS/IEC 62305)
   • Soil resistivity 
   • Examples
5. CHOOSING THE RIGHT MEASURING EQUIPMENT (CEA REGULATIONS, IS732, IEC61557)
   • Introduction of Sonel company and our product series
   • Comparison of multifunction meters of Sonel MPI series
   • Comparison of fault loop impedance meters of Sonel MZC series
   • Introduction of RCD parameters meter, MRP-201
   • Comparison of insulation resistance meters of Sonel MIC series
   • Comparison of earth resistance meters of Sonel MRU series
   • Where to find more information

The training is conducted online based on recorded material. To join the online training, the participant needs a computer with Internet access (min. 5 Mb / s) and speakers or headphones and any type of internet browser. 

Sources:

[1] Draft Central Electricity Authority (Measures relating to Safety and Electric Supply) Regulations, 2022- for inviting public/stakeholders comments ( Last date 28th July, 2022); https://cea.nic.in/regulations-category/draft-regulations/?lang=en

[2] Bureau of Indian Standards, Indian Standard IS 732:2019, Code of Practice for Electrical Wiring Installations, February 2019

[3] Bureau of Indian Standards, Indian Standard IS 3043:2018, Code of Practice for Earthing, November 2018

[4] PKN, European Norm EN 62305:2011 Protection against lightning, Warsaw 2014

[5] IEC, International Standard IEC 61557, Electrical safety in low voltage distribution systems up to 1 000 V a.c. and 1 500 V d.c. – Equipment for testing, measuring or monitoring of protective measures

[6] PKN, EN 61140:2016 Protection against electric shock - Common aspects for installation and equipment, Warszawa 2016

[7] Dr hab. Inż. Stanisław Czapp - Principles of electric shock protection in electrical installations and low voltage distribution networks