Fusing of Tungsten Halogen Studio and Theatre Lamps
A lamp normally fails at end of life by fusing of the filament. Often an arc then forms and as there is little resistance to limit the current this rises to a very high value which if maintained can result in a serious overload on the envelope and seals. This might result in the lamp shattering. A quick acting high breaking capacity fuse must be connected in the supply line in all applications. Suitable types are given in BS88 (IEC 269), IEC 127 or IEC 241.
lamp | fuse (rated current) |
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|
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| ||
power | (amps) |
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(watts) | ||||||||
500 | 6 |
|
| 6 |
|
| 4 |
|
650 | 10 |
|
| 6 |
|
| 4 |
|
1000 | 16 | (15 | UK) | 10 |
|
| 6 |
|
1500 | 20 |
|
| 16 | (15 | UK) | 10 |
|
2000 | 25 | (30 | UK) | 25 | (20 | UK) | 10 |
|
2500 | 35 | (30 | UK) | 25 | (30 | UK) | 16 | (15 UK) |
5000 | 63 | (60 | UK) | 50 |
|
| 25 | (30 UK) |
10000 | 125 |
| 100 |
| 50 |
| ||
GE LIGHTING - ENTERTAINMENT LIGHTING CATALOGUE 105
