Polarity Testing in Electrical Circuits

These flashcards cover key concepts related to polarity testing in electrical circuits, focusing on the importance, procedures, and consequences of incorrect connections.

What is the purpose of testing polarity in electrical installations?

To ensure that single-pole devices and switches are installed in the line conductor, ES lampholders have their centre contact connected to the line conductor, and all accessories are correctly connected.

What can happen if phase conductors are incorrectly connected in three-phase systems?

It could result in serious damage to equipment due to high currents flowing through them.

What must be verified before energizing switchgear, distribution boards, and final subcircuits?

That the phase conductor connections are made correctly.

What does the polarity test ensure regarding accessory connections?

That all accessories are correctly connected and the supply polarity is correct.

What is a critical step before conducting tests on single-phase circuits?

Completing the tests for r1 + r2 and testing polarity.