27.12.2014 Views

ADL 2391 Revision Questions 2 1003.pdf

ADL 2391 Revision Questions 2 1003.pdf

ADL 2391 Revision Questions 2 1003.pdf

SHOW MORE
SHOW LESS

Create successful ePaper yourself

Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.

Question 28<br />

State the maximum recommended value of<br />

resistance for an earth electrode<br />

GN3 Page 53 2.3 (Earth electrode for RCD’s)<br />

Electrodes having resistances in excess of<br />

200 will require further investigation.<br />

Note: Electrode resistances obtained in excess<br />

of 200 may indicate unstable soil conditions

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!