| . |
|
ELECTRICAL SAFETY DESIGN |
. | |||
Importance of Marking |
||||||
|
Marking is very important. If a piece of equipment is connected to a voltage
higher than its rating, a violent failure could occur. If it is connected to a voltage
below its rating, it may attempt to perform its intended function and overheat badly,
leading to failure. If AC equipment is energized with the wrong frequency, or with direct
current, it will probably fail violently. These occurrences can cause fires and burns to
employees. If equipment is connected to a circuit not adequate for the load, conductors may overheat and deteriorate. Overcurrent protective devices should prevent serious damage in such a case. However, these devices may have been tampered with, reducing protection capability. If the manufacturer's name is not marked on the nameplate, there will be difficulty in tracing the reasons for faulty performance and in preventing future failures. Sometimes it is necessary to know the identity of the manufacturer in order to determine if equipment is approved for a particular purpose. The manufacturer's name may also be necessary so that the user can obtain information or replacement parts. |
|||||
|
||||||
| . |
