The two-pole voltage detector BO-A AC/DC is a testing device for use on overhead lines of electric railways (tram / electric buses).

It serves to verify the voltage status on the respective overhead line.

We answer frequently asked questions here:

Question 1: What is the measuring range of the voltage detector?

The voltage detector is available in different versions and covers the voltage range from 100 V to 3,000 V AC/DC.

Question 2: How are the measurement results displayed (visually/acoustically)?

The measurement results are displayed both visually and acoustically. The following states can be distinguished:

• “Ready” – visual
• “Voltage present” – visual and audible
• “Voltage not present” – visual
• Additionally the BO-A AC/DC also provides a visual residual voltage indication

Question 3: How long does the battery last in normal operation? Is a repeat test necessary?

In normal operation, the battery life is 6 years and a repeat test must therefore be carried out after this period at the latest.

Question 4: Is there only one extension variant for the BO-A AC/DC?

No, the BO-A AC/DC is available in different versions. It is available as a telescopic pole with plug-in adapter (Horstmann adapter or universal adapter) or as a plug-in insulating rod.

Question 5: Is there any approval from DB?

Yes, there is an approval (3 Ebgw 02.79 ) as well as an approval for the storage/transport bag of the voltage detector3 Ebgw 06.01).

Question 6: Is there a special storage/transport bag for safe transportation?

Yes, there is a special storage bag for the voltage detector in orange or yellow.