Inspection and testing

Example
The requirement for full inspection and testing has not changed, this should be carried out safely and by a skilled person. However, some details have changed and need to fully understood by the inspector.

What it means
Changes have been introduced such as: Inspection and testing Table 71A is now known as table 61.

Minimum installation values changed to:

• 0.5 MΩ Selv or Pelv at 250 volts
• 1.0 MΩ for systems up to and including 500 volts with a test voltage of 500 volts.
• For systems above 500 volts tested at 1000 volts the minimum is also 1.0 MΩ

Solution
Only a skilled person competent in such work should be used to conduct the inspection and testing. Proof of competence should be shown.

Example
The requirement for full inspection and testing has not changed, this should be carried out safely and by a skilled person. However, some details have changed and need to fully understood by the inspector.

What it means
Changes have been introduced such as:
Inspection and testing Table 71A is now known as table 61.

Minimum installation values changed to:

• 0.5 MΩ Selv or Pelv at 250 volts
• 1.0 MΩ for systems up to and including
  500 volts with a test voltage of 500 volts.
• For systems above 500 volts tested at
  1000 volts the minimum is also 1.0 MΩ

Solution
Only a skilled person competent in such work should be used to conduct the inspection and testing. Proof of competence should be shown.