1. They prevent from any contact with live parts.2 Protection barriers enclosures
With this measure, the live parts are located inside enclosures behind barriers.e.1.
5. These
enclosures barriers shall prevent the entrance solid object greater than and fingers
(i. Whenever necessary remove barriers
or open enclosures this shall only possible:
- the use key tool, or
- after disconection the power supply live parts, restoration the supply being possible
only after replacement reclosure the barriers enclosures,
Figure 5.
5.FUNDAMENTAL RULES FOR PROTECTION AGAINST ELECTRIC SHOCK 31
- protection against unintentional contact (any contact) with live parts represented by:
- protection insulation live parts,
- protection barriers enclosures;
- protection against intentional contact with live parts represented by:
- protection obstacles;
- protection placing out reach.
.
Protection insulation live parts, protection barriers and enclosure,
- prevent any contact with live parts. 2X).
Barriers and enclosures shall firmly secured.
Basic protection.1
Protection against direct contact.1 Protection insulation live parts
Live parts shall completely covered with insulating materials which can only removed
by destruction.1.
Protection normal service
