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Operating manual HVL 120-0.3 

 

6  ASSEMBLY AND INSTALLATION 

 

Safety instructions 

 
On stationary railway installations in the vicinity of overhead line and current collector areas, voltages occur 
which can be dangerous to the human body. 
 
To ensure successful and safe operation, assembly and maintenance of the low voltage limiter, the following 
fundamental safety instructions must be observed and followed: 
 

Installation and assembly of the low voltage limiter must only be carried out by qualified personnel 
who by reason of their knowledge, abilities and experience, can carry out the work in the technically 
correct manner, and who can independently evaluate the dangers involved. 

Before beginning the work, all members of the workforce must be sufficiently informed of the 
possible dangers which arise through operation of the railway. For their personal protection, all 
members of the workforce must carry out precautionary and/or safety measures. 

Depending on the local conditions, the measures to establish and to secure the de-energised 
condition must be carried out on installations or installation components, where necessary.  

The low voltage limiter must only be assembled, installed and operated with the supplied 
accessories for its intended purpose and in accordance with its specifications. 

Modifications and repairs to the low voltage limiter itself and to its mounting parts are prohibited. 

If special problems arise which were not covered or were insufficiently covered in this operating 
manual, please contact ABB Schweiz. 

 

Before beginning any electrical installation work, the following 5 safety rules for establishing and 
securing the de-energised condition must be strictly observed. 

 

Isolate the installation 

Secure against switching on again 

Check the de-energised state 

Earth and short-circuit 

Safely cover up or fix barriers around adjacent and live parts 

 
Compliance with these safety measures will assist in preventing personal injury and material damage. 
 
Signs used in this operating manual: 
 

 

 
Warning of electrical voltage: This sign is used in the individual chapters and sections 
of this manual and means that death or severe personal injury can occur, if the safety 
measures are not followed.

 

 

 

Warning of dangers: This sign is used in the individual chapters and sections of this 
manual and means that death or severe personal injury can occur during assembly 
work at high level and as a consequence of traffic, if the safety measures are not 
followed.

 

 

1HC0023892 AA 

EN 

Page 7 / 12

 

Содержание HVL 120-0.3

Страница 1: ...L DATA DESIGN 4 5 OPERATION AND STRUCTURE 6 6 ASSEMBLY AND INSTALLATION 7 7 MAINTENANCE SERVICING 9 8 SQS CERTIFICATE 11 9 EU DECLARATION OF CONFORMITY 11 Published by Contact details ABB Switzerland Ltd Phone 41 58 585 29 11 Surge arresters Telefax 41 58 585 55 70 Jurastrasse 45 E mail sales sa ch abb com CH 5430 Wettingen 1 www abb com arrestersonline Switzerland Subject to change without notice...

Страница 2: ...of installation ABB accepts no liability for direct or indirect damage arising from the use or misuse of this product 2 DESCRIPTION AND FUNCTION Stationary installations for the supply of railway traction current employ the rails amongst other means as the return path for the traction current In the case of DC current railways electrically conductive parts or structures located in the area of the ...

Страница 3: ...miter Each consignment is accompanied by final inspection record Scope of supply Low voltage limiter Fixing bracket for the low voltage limiter T bracket for cable connection Bolts and tension washers Final inspection record 1 x 1 x 1 x 4 x 1 x Following delivery each consignment must be checked for completeness and correctness compare against the order and delivery documents In the case of incomp...

Страница 4: ...s current value in the stated time period the low voltage limiter resets itself back to its starting condition after responding If the current is higher than this or if the time period is greater than that stated the resetting capability cannot be guaranteed If the low voltage limiter does not reset to its starting condition it becomes permanently conductive In this way the protective function con...

Страница 5: ...l HVL 120 0 3 Up Residual voltage at nominal discharge current In No HA Serial number Dimensions Low voltage limiter T bracket for cable connection Fixing bracket for the low voltage limiter 1HC0023892 AA EN Page 5 12 ...

Страница 6: ... voltage U applied to the low voltage limiter and typically lies in the region of several hundred microseconds The duration of the overvoltage is therefore the controlling factor for the value of the voltage limitation If the duration lies in the region of several hundred microseconds then the characteristic curve of the metal oxide varistor alone defines the voltage limitation for example 380 V a...

Страница 7: ...r must only be assembled installed and operated with the supplied accessories for its intended purpose and in accordance with its specifications o Modifications and repairs to the low voltage limiter itself and to its mounting parts are prohibited o If special problems arise which were not covered or were insufficiently covered in this operating manual please contact ABB Schweiz Before beginning a...

Страница 8: ...ure For this purpose use a secure working platform and wear your personal protective equipment The contact surface to which the low voltage limiter is to be fitted by means of the fixing bracket must be flat and clean The mounting position of the low voltage limiter can be freely chosen It must be noted however that the type plate and serial number should remain easily readable without removing th...

Страница 9: ...ltage limiter should be cleaned For this we recommend that a soft cloth is used with warm water and a mild household cleaner do not use solvents or abrasive cleaning agents Faults and reserve equipment The low voltage limiter is a protective equipment element and therefore overloading can never be completely excluded Depending on the number of units in operation it is recommended that a suitable n...

Страница 10: ...under Point 1 and Point 2 must be repeated 4 The HVL 120 0 3 must be shorted out with a conductor of sufficient dimensions observe the national regulations and the requirements of the railway network operator This conductor must be arranged to ensure that detachment of the connection during removal of the HVL 120 0 3 cannot occur 5 Take a further measurement of the voltage via the connections of t...

Страница 11: ...red and brought into service in conformity with the EC directive 73 23 EEC Company ABB Switzerland Ltd Surge arresters Jurastrasse 45 CH 5430 Wettingen Switzerland The following EC directives and harmonised standards have been applied EC directive 73 23 EEC low voltage electrical equipment The following European standards have been applied Railway applications stationary installations DC current s...

Страница 12: ...Operating manual HVL 120 0 3 1HC0023892 AA EN Page 12 12 ...

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