R ≤ 1.06Ω Resistance too low Fault definitely detected
1.80Ω ≤ R ≤ 3.40Ω Resistance whithin tolerance Definitely no fault detected
R ≥ 6.70Ω Resistance too high Fault definitely detected
1.06Ω < R < 1.80Ω
3.40Ω < R < 6.70Ω
Tolerance band Fault may or may not be detected
R ≤ 0.4Ω Resistance too low Fault definitely detected
1.6Ω ≤ R ≤ 2.8Ω Resistance whithin tolerance Definitely no fault detected
R ≥ 5.4Ω Resistance too high Fault definitely detected
0.4Ω < R < 1.6Ω
Tolerance band Fault may or may not be detected