| Appliance |
|
I | Incandescent lamp,hot plate | I |
I | Fluorescent lamp,mercury lamp | I |
I | Electric tool | I |
I | Pump,compressor | I |
Applicable wattage | |
60Hz | |
~ | |
up to 1ooow | I |
up to about 600W | |
up to about 600W | I |
up to about 250W | I |
NOTE :
1.Appliances equipped with electric motors.
They need large starting current as mentioned above. However after starting, the appliance requires only 1.2 to 2 times the wattage to continue running.Therefore, the generator has reserve power for another appliance.
2.Some appliances will indicate output work instead of (input) wattage.
Example : 40W fluorescent lamp means 40W of the light beam is emitted from the lamp.
In such case, efficiency should be considered between the (input) wattage and output work,
Efficiency
0.6to 0 . 8 . . . . motor
0.7to 0.8. . . . fluorescent lamp
The (input) wattage determined by the efficiency subjects to the same as above.
3.Voltage drop in long extension wires
When a long wire is used to connect an appliance with the generator, a certain amount of voltage drop occurs in the wire which lessens effective voltage to the appliance.
The table below shows the values for a 1OOm wire
Sectional Allowable |
| Gauge No./ |
|
|
| Voltage drop per 100 m | |||
area | 1 | current | 1 | wire element | 1 | Resistance |
| ||
|
|
| |||||||
mm2 | A | No.lmm | Ohm11OOm | 1A | 3A | 5A | |||
|
|
|
| 30l0.18 |
| 2.477 | 2.5V | 8V | 12.5V |
|
|
|
| 5OlO.18 |
| 1.486 | 1.5V | 5 v | 7.5v 12V 15V 18V |
|
|
|
| 3710.26 |
| 0.952 | 1.ov | 3 v | 5.0V |
3.5 |
|
|
| 4510.32 |
| 0.517 |
| 1.5v | 2.5V |
5.5 |
| 35 |
| 7010.32 |
| 0.332 | - - | 2 v | |
|
|
|
| 1 v |
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