8
NXAIR M
139-2021.9 / 07
General instructions
2 General instructions
2.1
General instructions
Independently of the safety instructions given in these Operating Instructions, the local laws, ordinances,
guidelines and standards for operation of electrical equipment as well as for labor, health and environmental
protection apply.
Please do absolutely observe the following:
The personnel must read and understand these Operating Instructions before starting to work.
Observe all safety instructions and warnings in these Operating Instructions, and follow the
instructions.
Store these Operating Instructions carefully, and so that they are accessible to the personnel at any
time.
These Operating Instructions are a part of the product. When the switchgear is transferred, supply
these Operating Instructions as well.
Any kind of modification on the product or alteration of the product must be coordinated with the
manufacturer in advance. Uncoordinated modifications or alterations can cause the expiration of warranty
claims, cause danger to life, limb and other legally protected interests. The fulfilment of the type tests
(according to IEC 62271 Part 200) may not be guaranteed anymore. This applies especially though not
exclusively to the following actions:
Original Siemens spare parts were not used.
Service technicians performing replacement were not trained and certified by Siemens.
Parts were fitted or adjusted incorrectly.
Settings were not made in accordance with Siemens specifications.
After installation and setting, no final check was performed by a service technician approved by
Siemens, including documentation of the test results.
Maintenance was not done according to the operating instructions of the Siemens products.
The edition of the standard is only mentioned in the test report applicable at the time of switchgear
manufacture.
These Operating Instructions should be used jointly with the Operating Instructions for circuit-breaker type
3AE.
2.2
Five Safety Rules of Electrical Engineering
The Five Safety Rules of Electrical Engineering must generally be observed during operation of the products
and components described in these Operating Instructions:
Isolate.
Secure against reclosing.
Verify safe isolation from supply.
Earth and short-circuit.
Cover or barrier adjacent live parts.
2.3
Hazardous substances
If hazardous substances are required to perform the work, the relevant safety data sheets and operating
instructions must be observed.
