25
The following regulations must be adhered to during installation, commissioning and operation:
• IEC 62271-1//DIN VDE 0101, General specification for high-voltage switchgear and control gear standards;
• VDE 0105, Operation of electrical installations;
• DIN VDE 0141, Earthing systems for electrical power installations with nominal voltages above 1 kV;
• All rules for accident prevention applicable in the respective countries.
Wearing of gloves for handling the parts during installation is recommended. Insulating material surfaces must be
cleaned with clean and dry rags. The contact surfaces of connections must be cleaned before installation. If the
contacts have become oxidized during transport or storage then the following actions must be followed:
• Clean contact surfaces with a rough, dry cloth;
• In case of hard oxidation, clean with a hard plastic sponge, the coating layer must not be removed;
The nuts, washers and conical spring washers shall be used for connecting the terminals of the ISM with the busbars.
If additional fastening material is required, steel bolts according to EN ISO 898 class 8.8 (800 N/mm
2
), nuts according
to EN ISO 890 class 8 (880 N/mm
2
), washers to DIN 125 and conical spring washers to DIN 6796 (for LD ISM) shall be
used. Bolts and washers for HD ISM connection are already included in the CBkit_Shell15_1 kit. ISM mounting and
shall be made with a calibrated torque wrench only.
4.1 Primary part
4.1.1 Preparation
4.1.2 Ins tallation of the ISM
In any switchgear application, the HD ISM may be installed in position “actuator up”, as well “actuator down”
(Figure 32, Figure 33). The LD ISM can be installed in any position (Figure 34).
Mounting
Figure 32
Withdrawable unit with HD ISM,
vertical arrangement, actuator down
Figure 33
Fixed compact installation of HD ISM,
vertical arrangement, actuator up
Figure 34
Withdrawable unit with LD ISM,
horizontal arrangement
Summary of Contents for TAVRIDA ELECTRIC VCB15 LD
Page 1: ...VCB Vacuum Circuit Breaker 17 5kV 31 5kA 2000A 24kV 16kA 800A User Guide...
Page 3: ...1 Product description...
Page 7: ...2 Nameplates and seals...
Page 11: ...3 Product handling...
Page 23: ...4 Installation...
Page 50: ...5 Commissioning...
Page 57: ...6 Operation...
Page 61: ...7 Maintenance and troubleshooting...
Page 66: ...8 Disposal...
Page 68: ...Appendix 1 Product range...
Page 71: ...Appendix 2 Overall drawings...
Page 74: ...75 ISM15_LD_3 Weight 13 kg ISM15_LD_6 PCD 133 mm Weight 55 kg...
Page 81: ...82 ISM25_LD_2 1 PCD 150 mm Weight 35 kg ISM25_LD_2 2 PCD 150 mm Weight 37 kg...
Page 85: ...Appendix 3 Secondary schemes...
Page 86: ...87...
Page 87: ...88...
Page 88: ...89...
Page 89: ...90...
Page 90: ...91...
Page 91: ...92...
Page 92: ...93...
