SAFETY IN ELECTROHEAT INSTALLATIONS - PART 21: PARTICULAR REQUIREMENTS FOR RESISTANCE HEATING EQUIPMENT - HEATING AND MELTING GLASS EQUIPMENT
International Electrotechnical Committee
FOREWORD<br>1 Scope and object<br>2 Normative references<br>3 Terms and definitions<br>4 Classification of electroheat equipment according to<br> voltage bands<br>5 Classification of electroheat equipment according to<br> frequency bands<br>6 General requirements<br>7 Isolation and switching<br>8 Connection to the supply network and internal <br> connections<br>9 Protection against electric shock<br>10 Protection against overcurrent<br>11 Equipotential bonding<br>12 Control circuits and control functions<br>13 Protection against thermal influences<br>14 Risk of fire and danger of explosion<br>15 Marking, labelling and technical documentation<br>16 Information on inspection and commissioning and<br> instructions for utilization and maintenance of <br> electroheat installations
Applicable to indirect resistance heating equipment for the heating and melting of glass, operating in voltage bands 1 and 2.
| Document Type | Standard |
| Status | Current |
| Publisher | International Electrotechnical Committee |
| Committee | TC 27 |
