ELECTRICAL SAFETY EQUIPMENT AND PPE
BO-A 2.0 / BO-A AC/DC voltage detectors for overhead contact lines of electrified railways
Country: Germany · Model: BO-A 2.0 / BO-A AC/DC
The portable BO-A 2.0 and BO-A AC/DC detectors check for voltage on the contact wire of railways, trams, trolleybus and e-bus lines, including straight from the ground. The BO-A 2.0 is made for AC of 15 kV/16.7 Hz, 25 kV/50 Hz and 25 kV/60 Hz, and the double-pole BO-A AC/DC for DC and AC of 100–300, 300–900 and 1000–3000 V.
- BO-A 2.0
- 15 kV/16.7 Hz, 25 kV/50 Hz, 25 kV/60 Hz (11 kV/16.7 Hz – version on request); IEC 61243-1 / VDE 0681-6
- BO-A 2.0 – length
- telescopic stick up to 5400 mm or sectional sticks 4700 mm; transport length < 1111 mm
- BO-A AC/DC
- double-pole, Un 100–300 / 300–900 / 1000–3000 V; 16.7–60 Hz and DC; IEC 61243-1, -2, DIN VDE 0681-6
- Residual voltage indication
- AC from 50 V RMS, DC from ±75 V; DC polarity indication
Technical specifications
| BO-A 2.0 | 15 kV/16.7 Hz, 25 kV/50 Hz, 25 kV/60 Hz (11 kV/16.7 Hz – version on request); IEC 61243-1 / VDE 0681-6 |
|---|---|
| BO-A 2.0 – length | telescopic stick up to 5400 mm or sectional sticks 4700 mm; transport length < 1111 mm |
| BO-A AC/DC | double-pole, Un 100–300 / 300–900 / 1000–3000 V; 16.7–60 Hz and DC; IEC 61243-1, -2, DIN VDE 0681-6 |
| Residual voltage indication | AC from 50 V RMS, DC from ±75 V; DC polarity indication |
| Self-test | built-in; ready mode 65 ± 15 s |
| Indication | group III of IEC 61243-1: LEDs and audible signal |
| Power supply | lithium cells, 6 years |
| Temperature | −25…+70 °C, classes N and W |
Specifications are taken from the manufacturer’s technical documentation. Updated .
Description
To order the BO-A 2.0 is also made for other parameters, for example 11 kV/16.7 Hz, and in a network with a different frequency the light and audible signals come on and the line status must be checked additionally. Depending on the version it complies with IEC 61243-1 or VDE 0681-6, and there are versions with Deutsche Bahn approval and with automatic self-switching. Indication per group III of IEC 61243-1 is simple: a green LED after the self-test means ready, red with sound signals voltage, green without sound its absence, and the ready mode lasts 65 ± 15 s. The head is placed on a telescopic stick with a plug adapter up to 5400 mm or on sectional insulating sticks of 4700 mm, the insulating element is longer than 520 mm, and the stick is tested for leakage current at 1.2 Ur for 1 min. The BO-A AC/DC is made to IEC 61243-1, -2 and DIN VDE 0681-6, it determines the current type by itself and shows DC polarity with a blue or red LED. A yellow flashing LED warns of dangerous residual voltage from 50 V RMS AC or from ±75 V DC.
How to choose
The deciding parameter here is the current type. On 15 or 25 kV AC lines the BO-A 2.0 works in the version for 16.7, 50 or 60 Hz. For trams, trolleybuses and e-buses the BO-A AC/DC is suitable, and its range is chosen by the nominal line voltage with a tolerance of ±10 % at 16.7–60 Hz. In switchgear of 6–30 kV distribution networks the single-pole Sirius and Comet are used.
Request a price and lead time
BO-A 2.0 / BO-A AC/DC voltage detectors for overhead contact lines of electrified railways. We reply within one business day.
Or email office@usk.ua or call +38 (044) 339-50-20.
FAQ
How long do the batteries in the BO-A voltage detector last?
The replaceable lithium cells have a life of at least 6 years at about 10 cycles per day and 230 working days per year.
How often must the BO-A 2.0 detector be tested?
Both instruments, the BO-A 2.0 and BO-A AC/DC, must be tested once every 6 years under DGUV Vorschrift 3.
At what temperature can BO-A be used?
The operating range is −25…+70 °C per classes N and W, and the instruments are made for wet and dry conditions.
What is the transport length of the BO-A 2.0 stick?
Folded, the set is shorter than 1111 mm and is carried in a bag. The instrument is light and shock-resistant.
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Need a price, lead time or replacement?
Send us a request and we will confirm the configuration, lead time and delivery terms. We reply by email.