3
I. Introduction 4
II. Programme for environmental protection 4
1. Packing and transport 5
2. Checking on receipt 5
3. Storage 5
4. Handling 6
5. Description 7
5.1. General information 7
5.2. Reference Standards 7
5.3. EL operating mechanism 7
5.4. Fixed circuit-breakers 7
5.5. Withdrawable circuit-breakers 15
5.6. Characteristics of the electrical accessories 35
6. Instructions for circuit-breaker operation 36
6.1. Safety indications 36
6.2. Switching and signalling parts 36
6.3. Circuit-breaker closing and opening operations 37
7. Installation 39
7.1. General 39
7.2. Installation and operating conditions 39
7.3. Preliminary operations 41
7.4. Installation of fixed circuit-breakers 41
7.5. Installation of withdrawable circuit-breakers in UniGear ZS1
and PowerCube modules 41
7.6. Connections of the fixed circuit-breaker power circuit 42
7.7. Earthing 42
7.8. Connection of the auxiliary circuits 42
8. Putting into service 44
8.1. General procedures 44
9. Maintenance 45
9.1. General 45
9.2. Inspections and functionality tests 45
9.3. Overhauling 46
9.4. Repairs 48
10. Application of the standards for X-ray emission 48
11. Spare parts and accessories 49
11.1. List of spare parts 49
12. Electrical diagram 49
13. Overall dimensions 50
Index
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