doble SFRA, User Manual, Page: 22 / 126

Sweep Frequency Response Analyzer (SFRA) User Guide
2-2 72A-2570-01 Rev. K 07/2011
4. All of your company rules for safe practice in testing must be strictly
conformed to, including all practices for tagging and isolating apparatus
during testing and maintenance work. State, local, and federal regulations,
e.g., OSHA, may also apply.
Grounding Requirements
The apparatus under test, its tank or housing, and the SFRA instrument must
be solidly and commonly grounded or earthed. This also applies to any mobile
equipment being tested.
Figure 2.1 shows a sample safety ground connection.
Figure 2.1 Connecting Safety Ground to Transformer
For detailed instructions on grounding the SFRA instrument, go to
“Step 2:
Ground the Transformer” on page 3-12
.
Company rules and government regulations take precedence over Doble
recommendations.
Personal protective equipment suitable for electrical testing of
transformers is recommended.