ABB MWK Руководство по эксплуатации - Страница 8
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5
Commissioning
5.1
Safety
DANGER!
System uses high-voltage
Electric shock may cause death, serious injury and damage to the system.
Allow only authorised professionals to perform work on the surge arrester.
X
Observe the safety rules of EN 50110-1 or equivalent local standards on the "Operation of
X
Electrical Installations" before working on the system:
à Disconnect the system from the power supply.
à Secure the system against being switched on again.
à Ensure that the system is de-energised.
à Ground the system and short-circuit it.
à Cover or cordon off neighbouring energised parts.
5.2
Electrical checking before commissioning
Each POLIM® and MWK/MWD surge arrester is tested by the manufacturer. The log of the
electrical test is included with the packaging.
Additional electrical testing before commissioning is not necessary.
5.3
Installation location and protective distance
DANGER!
Danger of fire and injury due to arc and ejected parts when electrically overloading the
surge arrester and when the disconnecting device, if installed, is disconnecting the surge
arrester
Ignition of flammable materials by an arc or ejected hot parts
Do not store flammable materials near the surge arrester.
X
When working near a surge arrester, do not wear easily flammable clothing.
X
Surge arresters only protect high-voltage apparatuses when they are located within the
protective distance, as defined in the surge arrester application guidelines (see chapter
3.3.2 above).
Always mount surge arresters as close as possible to the apparatus to be protected
X
within the protective distance. The length of the connection cables is decisive here.
If in doubt, calculate the protective distance according to the formulas in the surge
X
arrester application guidelines (see chapter 3.3.2 above).
Additionally, for surge arresters equipped with disconnecting devices, the following app-
lies:
Use surge arresters equipped with a disconnecting device in outdoor installations only.
X
Use the disconnecting device with the intended surge arrester only. The disconnecting
X
devices are different for each surge arrester type.
Ensure that a safe insulating distance will be created and maintained between the
X
connection lead and the disconnecting device in case of disconnection.
8 |
Operating instructions | EN | 1HC0141361 AA