Measurements – Diagnostics of Electrical Installations and Devices (2 days)
(Day 1)
- Basic legal regulations and Polish standards considering the conditions for measuring electrical installations and devices
a) Building Law
b) Energy Law
c) Selected standard sheets- Standard PN-IEC-60364:4-41 PN-HD 60364-4-41:2009 Low-voltage electrical installations – Part 4.41: Protection for safety – Protection against electric shock.
- Standard PN-HD 60364-6:2008 Low-voltage electrical installations – Part 6: Verification
- Standard PN-EN 12464-1:2004 – Lighting of indoor workplaces.
- Standard PN-EN 62305-1:2011 – Lightning protection.
d) Operating Manual
e) Safe Work Organization Manual
2. Principles of safe execution of electrical measurements
a) Practical tips for carrying out measurements
b) The seminar author’s personal experiences, or how not to damage the installation and yourself
3. Principles of using and verifying measuring instruments for testing installations and electrical devices
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- Do instruments require periodic checks?
- What scope of checks is mandatory, and what is optional?
- Who verifies the measuring instruments?
- Cost of verification?
4. Typical errors made by measurement technicians
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- Errors in measuring instruments
- Errors in measurement setups
- Errors in result interpretation
5. Karwat’s Golden Rule in practice – control the error you make, and be careful not to let the error control you
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- Practical discussion of possible errors
- Simple calculations of measurement errors
6. Responsibility of the measurement technician (Operator)
7. Responsibility of the Supervisor evaluating the results
8. Principles for preparing measurement reports in compliance with legal and standard requirements (for supervision and acceptance of measurement works)
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- Examples of reports from various types of measurements
- Examples of legally ineffective reports
- Is a program for preparing reports needed, and if so, which one?
- Automation of verification measurements
PRACTICAL EXERCISES AT A PRODUCTION PLANT/REPAIR BASE (DAY 2)
- Measuring instruments in the context of their applications
a) Instruments used to assess quick disconnection of the power supply
b) Instruments used for measuring operational and protective earthing
c) Instruments used for verifying the continuity of operational and protective conductors
d) Instruments used for verifying devices ensuring supplementary protection
e) Instruments used for verifying equipotential bonding
f) Instruments used for verifying insulation resistance
g) Instruments used for checking cable loads
h) Instruments used for checking heat output from installations – thermal imaging cameras and pyrometers - Measurements of basic parameters of electrical installations (good practices for safe work):
a) Measurements of voltages, currents, resistances
b) Measurements of short-circuit loop impedance
c) Measurements of insulation resistance, earthing, soil resistivity, and equipotential bonding
d) Tests of electric shock protection in circuits with residual current devices
e) Thermal imaging measurements versus insulation resistance measurements versus leakage current measurements - Measurements of installations and devices powered from sources with limited short-circuit current (e.g., UPS power supplies, generator sets)
- Measurements of generator sets, including
- Grounding resistance, resistance of equipotential bonding
- Operational parameters of the generator (unbalance currents and voltages, harmonics) – simplified analysis of results
5. Fire protection system checks (testing of switches)
6. General comments on measurements, discussion, exchange of experiences, consultations, as well as summary and conclusions, prizes in the competition
SUPERVISION OVER OPERATION AND OHS
- First aid (exercises):
a) Regulations regarding the provision of first aid
b) Cases of electric shock
c) Other cases, including heart attacks, seizures, fainting, etc. - Occupational Health and Safety (OHS) principles and elements of supervision over the operation of electrical installations (exercises)
- Risk assessment for electricians in the context of the Operator and Supervisor
- Responsibility of the Operator – who is responsible? The company’s management or a regular employee?
- Independent functions in construction:
a) Investor
b) Designer
c) Inspector of investor supervision
d) Site manager - Supervision over Operation:
a) Labor Code in service of Supervision and Operation
b) OHS regulations
c) Organization of work in accordance with OHS regulations for electrical installations and devices (2013)
d) Basic regulations for Supervisors
e) Scope of responsibility for Supervisors - Practical team-building exercises:
- Work orders
- Operating instructions
- Industrial accidents – who is at fault?
8. Discussion, exchange of experiences, questions
Examination before the State Qualification Commission for the group without measurements.
Summary and Conclusions:
- Discussion of the key conclusions from the training.
- Most common mistakes during electrical measurements and ways to avoid them.
- Answers to participants’ questions and clarification of doubts.
Duration:
- 9:00 am – 3:00 pm, in-person training
- Training location: client’s premises or Mościska, ul. Postępu 7
- Two coffee breaks and one lunch break (self-provided) are planned during the training.
Target group for electrical measurement training:
- Electricians responsible for installation and service work
- Electrical technicians and personnel involved in operating electrical power devices
- Electrical engineers responsible for supervision and maintenance of electrical installations
- Maintenance specialists responsible for electrical installations and devices
- Maintenance department managers supervising work related to the operation of electrical installations
- Technical department staff involved in supervision and maintenance of power installations
Training Format
The training is workshop-based, employing the „learning by doing” method, which allows participants to gain practical skills through hands-on tasks. The trainer, drawing on their experience with failure and fire analysis, presents numerous examples illustrating the relationship between technology, organization, and people.
The sessions are conducted in a dynamic „stand-up” format, using practical exercises, team games, and case study analysis. Participants also have the opportunity to share experiences with representatives from other industrial facilities. Groups consist of 5-12 people, allowing for a personalized approach and interaction with each participant.
Additionally, participants may earn SEP qualifications upon completion of the training.