This document provides requirements for electrical safety for:<\/p>\n
dead working on an overhead contact line system;<\/p>\n<\/li>\n
working activities near an overhead contact line system when it is live.<\/p>\n<\/li>\n<\/ul>\n
It applies to all work activities in relation to electrical hazards only.<\/p>\n
This document is applicable to overhead contact line systems with the following nominal voltages and configurations:<\/p>\n
1,5 kV and 3 kV DC;<\/p>\n<\/li>\n
15 kV, 2×15 kV, 25 kV and 2×25 kV AC.<\/p>\n<\/li>\n<\/ul>\n
It also provides requirements for work activities that can give rise to electrical hazards from the return circuit.<\/p>\n
This document does not cover electrical risk arising from:<\/p>\n
live working on overhead contact line systems (live working can be carried out according to national requirements, regulations and practices);<\/p>\n<\/li>\n
working on or near other electrical sources or electrical systems connected to or close to the OCL system and its return circuit.<\/p>\n<\/li>\n<\/ul>\n
If there are no other rules or procedures, the principles described in this document can be applied to overhead contact line systems with other nominal voltages.<\/p>\n
| PDF Pages<\/th>\n | PDF Title<\/th>\n<\/tr>\n | ||||||
|---|---|---|---|---|---|---|---|
| 2<\/td>\n | undefined <\/td>\n<\/tr>\n | ||||||
| 8<\/td>\n | 1 Scope 2 Normative references 3 Terms, definitions, symbols and abbreviated terms 3.1 Terms and definitions 3.1.1 General <\/td>\n<\/tr>\n | ||||||
| 12<\/td>\n | 3.1.2 Personnel, organization and communication <\/td>\n<\/tr>\n | ||||||
| 13<\/td>\n | 3.1.3 Zones and distances during work activities <\/td>\n<\/tr>\n | ||||||
| 15<\/td>\n | 3.1.4 Working <\/td>\n<\/tr>\n | ||||||
| 16<\/td>\n | 3.1.5 Protective devices 3.2 Symbols <\/td>\n<\/tr>\n | ||||||
| 17<\/td>\n | 3.3 Abbreviated terms 4 Basic principles 4.1 Electrical safety for work activity 4.1.1 General 4.1.2 Planning for an electrically safe work environment <\/td>\n<\/tr>\n | ||||||
| 18<\/td>\n | 4.1.3 Creating an electrically safe work environment 4.1.4 Maintaining the electrically safe work environment during work activities 4.1.5 Restoring the planned operating condition 4.2 Personnel <\/td>\n<\/tr>\n | ||||||
| 19<\/td>\n | 4.3 Organization 4.3.1 General 4.3.2 Designated person in control of an electrical installation (EI) 4.3.3 Designated person in control of an electrical installation during work activity (EW) 4.3.4 Designated person in control of work activity (WA) <\/td>\n<\/tr>\n | ||||||
| 20<\/td>\n | 4.4 Communication 4.5 Work location <\/td>\n<\/tr>\n | ||||||
| 21<\/td>\n | 4.6 Tools, equipment and devices 4.7 Documentation for safe working 4.8 Signs <\/td>\n<\/tr>\n | ||||||
| 22<\/td>\n | 4.9 Emergency arrangements during work activity 5 Protective measures for work activities on or near overhead contact line system 5.1 General 5.2 Dead working 5.2.1 General <\/td>\n<\/tr>\n | ||||||
| 23<\/td>\n | 5.2.2 Disconnect completely from all sources of supply 5.2.3 Secure against re-connection 5.2.4 Verify absence of operating voltage (verify installation is dead) 5.2.5 Carry out earthing and short-circuiting <\/td>\n<\/tr>\n | ||||||
| 24<\/td>\n | 5.2.6 Provide protection against adjacent hazardous-live-parts 5.2.7 Permission to start work after implementing protective measures 5.2.8 Re-energizing after work <\/td>\n<\/tr>\n | ||||||
| 25<\/td>\n | 5.3 Working near to hazardous live parts 5.3.1 General 5.3.2 Protection by protective devices <\/td>\n<\/tr>\n | ||||||
| 26<\/td>\n | 5.3.3 Protection by minimum approach distance 5.3.3.1 General <\/td>\n<\/tr>\n | ||||||
| 27<\/td>\n | 5.3.3.2 Physical measure to limit the movement of workers <\/td>\n<\/tr>\n | ||||||
| 28<\/td>\n | 5.3.4 Machinery approaching hazardous-live-parts 5.4 Live working <\/td>\n<\/tr>\n | ||||||
| 29<\/td>\n | 5.5 Electromagnetic influences 5.6 Environmental conditions 6 Working procedures for work activities on or near return circuit 6.1 General 6.2 Working on or near parts of return circuit without electrical shock hazards in normal operating condition <\/td>\n<\/tr>\n | ||||||
| 30<\/td>\n | 6.3 Working on or near parts of return circuit with electrical shock hazards in normal operating condition 6.3.1 General 6.3.2 Working on or near hazardous-live-parts made dead for working 6.3.3 Working near hazardous-live-parts <\/td>\n<\/tr>\n | ||||||
| 31<\/td>\n | 7 Recommended distances in air for work activities <\/td>\n<\/tr>\n | ||||||
| 32<\/td>\n | Annex A (informative)Method of calculation of the distances in air for working procedures A.1 Calculation of the outer limit of the danger zone DR A.2 Determination of approach distances DL and DA <\/td>\n<\/tr>\n | ||||||
| 33<\/td>\n | A.3 Determination of DV A.4 Distances overview <\/td>\n<\/tr>\n | ||||||
| 35<\/td>\n | Annex B (informative)Examples of physical measures to limit the movement of workers B.1 General <\/td>\n<\/tr>\n | ||||||
| 36<\/td>\n | B.2 Distances between physical measure and hazardous-live-part when working zone encroaches DV <\/td>\n<\/tr>\n | ||||||
| 37<\/td>\n | B.3 Distances between physical measure and hazardous-live-part when working zone does not encroach DV <\/td>\n<\/tr>\n | ||||||
| 39<\/td>\n | Annex C (informative)Illustration of selection process of the protective measures <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" Railway applications. Fixed installations. Electrical protective measures for working on or near an overhead contact line system and\/or its associated return circuit<\/b><\/p>\n |