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SN EN 60519-21 : 1998
Current
The latest, up-to-date edition.
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SAFETY IN ELECTROHEAT INSTALLATIONS - PART 21: PARTICULAR REQUIREMENTS FOR RESISTANCE HEATING EQUIPMENT - HEATING AND MELTING GLASS EQUIPMENT
12-01-2013
1 Scope
2 Normative references
3 Definitions
4 Classification of electroheat equipment according to
voltage bands
5 Classification of electroheat equipment according to
frequency bands
6 General requirements
7 Prohibition of the use of earth as part of an active
circuit
8 Marking, labelling and circuit diagrams
9 Protection against overcurrent
10 Isolation and switching
11 Connection to the supply network and internal connections
12 Protection against electric shock
13 Protection against thermal influences
14 Risk of fire and danger of explosion
15 Inspection, commissioning, utilization and maintenance of
electroheat installations
Annex ZA Normative references to international publications with
their corresponding European publications
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