Siemens 3EL2 Operating Instructions Manual Download Page 7

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Polymeric composite housing

Protective packing for installation/transport

Fig. 5

Protective packing for installation/transport

Screwed joints

For mounting the arrester use only the bolts supplied.
Grease the bolt threads with Molykote Longterm 2 plus.

Attention

Unchecked tightening can result in damage to or loosing of bolt
joints

Use torque wrench for assembly.

Necessary torque for screwed joints:

M 8:

18 ± 2 Nm

13 ± 1.5 ft lb

M 10:

35 ± 5 Nm

25 ± 4 ft lb

M 12:

60 ± 5 Nm

43 ± 4 ft lb

M 16:

90 ± 10 Nm

65 ± 7 ft lb

M 20:

105 ± 10 Nm

75 ± 7 ft lb

Summary of Contents for 3EL2

Page 1: ... 00047 176 The copying distribution and utilization of this document as well as the communication of its contents to others without expressed authorization is prohibited Offenders will be held liable for the payment of damages All rights reserved in the event of the grant of a patent utility model or ornamental design registration ...

Page 2: ... 7 Installation _______________________________________________________________________8 Accessories 8 Place of installation 8 Mounting the components 8 Installing of the arrester 9 Grounding 12 Terminal 12 Exploded view ___________________________________________________________________14 Maintenance_____________________________________________________________________16 Disposal arrester and arre...

Page 3: ...der number shown on the title page Published by In case of request Siemens AG Telephone exchange 49 30 386 1 PTD H 4 Sales department 49 30 386 23061 D 13623 Berlin Fax 49 30 386 26721 e mail mailto Arrester Siemens de Subject to change Note The equipment covered by these instructions should be installed and serviced only by competent personnel familiar with good safety practices This instruction ...

Page 4: ...cation VDE 0675 Teil 4 A2 2000 07 10 kA IEC 60099 4 Ed 1 2 2001 12 10 kA Heavy duty ANSI C62 11 1999 Station valve arrester The rating plate Fig 2 will be found on the lowest flange in some cases this has a special design in accordance with customer requirements 1 Order number 6 Pressure relief class 2 Rated voltage 7 Year of manufacture 3 Continuous voltage 8 Works serial no 4 Rated discharge cur...

Page 5: ... resultant arc produces no overpressure since the resistors are not enclosed by a sealed mechanically rigid casing The arc escapes immediately through the silicon enclosure without any abrupt rupturing of the mechanical load bearing enclosing structure At the same time the MO resistors are held largely in place by a consider able number of GRP rods The risk of parts flying off is therefore minimis...

Page 6: ...t should be inspected immediately after receipt for signs of damage If damage is found the carrier should be informed without delay Loose parts packed with the consignment should be checked against the dispatch note to make sure none is missing This means that all shipping con tainers will need to be opened If the items are to be stored for extended periods we recommend you leave the modules and a...

Page 7: ...ounting the arrester use only the bolts supplied Grease the bolt threads with Molykote Longterm 2 plus Attention Unchecked tightening can result in damage to or loosing of bolt joints Use torque wrench for assembly Necessary torque for screwed joints M 8 18 2 Nm 13 1 5 ft lb M 10 35 5 Nm 25 4 ft lb M 12 60 5 Nm 43 4 ft lb M 16 90 10 Nm 65 7 ft lb M 20 105 10 Nm 75 7 ft lb ...

Page 8: ...lated 200 200 mm with screws M16 x 130 Fig 11 Ø 4 hole mounting insulated 310 310 mm with screws M20 x 140 Fig 12 Possibilities for the terminals Ø terminal bolt corrosion resistant steel Fig 14 Ø flat terminal DIN all hot galvanised steel Fig 15 Ø flat terminal NEMA all hot galvanised steel Fig 16 Place of installation The range of protection offered by the arresters is restricted which is why th...

Page 9: ...e other in the se quence of their numbers marked on the rating plate Fig 2 Fig 3 Fig 6 Attention Danger of damage to the interior of the arrester The contact faces 4 Fig 6 shall be cleaned before installation 1 lower unit 2 upper unit 3 Rating plate for unit 4 contact faces Fig 6 Surge arrester units Attention Shim plates between the individual arrester units are not allowed Before the top unit is...

Page 10: ...fting gear crane tackle comprising slings and lifting lugs Fig 7 Fig 9 unisolated 4 hole mounting Basic plate for isolated installation 3 hole mounting ø200 ø 276 mm 3 M12 standing installation Attention Do not remove the insulating tube from the bolts M12 140 Put according to the drilling plan the three lower insulating sockets Fig 10 to the holes of the support The base plate and the upper insul...

Page 11: ...ust be placed and mounted with four bolts M10 50 on the base plate by means of appropriate lifting gear crane tackle comprising slings and lifting lugs Fig 7 1 Support 2 Lower insulating socket 3 Base plate 4 upper insulating socket 5 Arrester Fig 11 Basic plate for isolated installation 4 hole mounting M16 200 200 mm Basic plate for isolated installation 4 hole mounting 310 310 mm 4 M20 standing ...

Page 12: ...p 3EX6 040 or surge counter 3EX5 030 050 the ground wire should be as short as possible and loops should be avoided If moni toring devices are to be installed at a larger distance from the arrester it is recommended to use de vices with separate sensors and display units such as the surge monitor with sensor unit 3EX5 060 and display unit 3EX5 062 If monitoring devices are connected to the ground ...

Page 13: ...N flat terminal or NEMA flat terminal If the terminal is mounted by means of a bolt terminal Fig 14 or a flat terminal Fig 15 Fig 16 the necessary accessories are already installed by the manufacturer Fig 14 Bolt terminal Fig 15 Flat terminal DIN Fig 16 Flat terminal NEMA ...

Page 14: ...Basic plate for isolated installation 4 200 200 mm 11d 1 Basic plate for isolated installation 4 310 310 mm 12b 4 4 4 Screw M10 50 Washer 10 5 Nut M10 12c 12d 4 8 4 Screw M10 45 Washer 10 5 Nut M10 13a 4 8 4 4 Screw M10 55 Washer 10 5 Spring washer B10 Nut M10 13b 3 6 3 6 3 3 Screw M12 140 Washer 15 Insulating tube B12 0 8 Insulating socket Spring washer B12 Nut M12 13c 4 8 4 8 4 4 Screw M16 130 W...

Page 15: ... Siemens AG 07 2003 15 Fig 17 Überspannungsableiter 3EL2 ...

Page 16: ... out aperture of the flange In such a case you will need to replace the arrester Disposal arrester and arrester accessories Surge arresters and the accessories are an environmentally compatible product Environmentally ac ceptable disposal of the surge arresters and the accessories is possible in line with current legislation The following materials have been used to make up the device Steel alumin...

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