Ten tips and taboos for stage lighting control
1. When the light bulb is cold, the light is suddenly turned on (full), and the result may cause the bulb to smash and smash; or cause the tungsten filament of the bulb to blow. (1) Since the bulb of the bulb is inevitably thick and uneven during the production process, uneven heating is caused. When the bulb is suddenly pushed, it will cause the glass bulb of the bulb to heat up instantly, just like the effect of boiling hot water into an empty glass in life; (2) after the light is used, the bulb is heated During the cooling process, water molecules in the air are absorbed, and these water molecules stay on the glass envelope of the bulb to gather. When you suddenly push the light bulb, the water molecules on the glass shell are like the effect of water injection in the hot oil pan. It is also a matter of course that the light bulb is broken. (3) The light is suddenly pushed, which will cause an instantaneous inrush current. (rise), which makes it easy to dissolve the bulb tungsten wire.
Operational skills: When the light bulb is in a cold state (before the opening), push the fader of the console only a little (often said calendering state), so that the bulb is slightly bright, so that it is in the warm-up state, so that It is heated evenly, and at the same time evaporates the water molecules condensed on the glass bulb of the bulb. After preheating for a few minutes, it will be brightened again, and then warmed up for a few minutes before the light is completely illuminated.
2. Never open the silicon box power supply when the dimmer fader is fully pushed . The result is the same as the above result, both of which will damage the bulb. All faders of the dimmer should be turned off, and the silicon box power should be turned on.
3. Never reverse the order of the lamp console and the silicon box power supply when switching the device . When turning on the power, first turn on the power of the light console, then turn on the power of the silicon box; when turning off the power, first turn off the power of the silicon box, then turn off the power of the light control station. If you reverse the sequence of operations, all the lights will flash, which will affect the life of the bulb.
4, should not shake the lamp when the light bulb is on . The tungsten filament of the bulb will break or fall off. After the bulb is lit, the temperature gradually rises, and the tungsten wire will soften accordingly. At the same time, due to the influence of gravity, the tungsten wire will also sag accordingly (this is especially true if the tungsten filament is not used in the bulb) At this time, when the big action shakes the lamp, it must wait until the light is completely cooled before it can be disassembled.
5. When replacing the bulb , directly touch the bulb with your hand, which will affect the smoothness of the bulb, and another hidden hazard is the bursting of the bulb. (1) The grease on the finger or the friction between the finger and the glass surface of the bulb will leave a "scar", which affects the smoothness and transparency of the bulb and thus affects the normal illumination of the bulb; (2) if there is sweat on the finger, the finger and the bulb After "intimate" contact, the salt molecules in the sweat absorb water molecules in the air. Once there is water on the bulb, it is easy to burst when the bulb heats up sharply.
Operation Tips: When replacing the lamp, be sure to wear gloves before touching the lamp. If you do not have gloves, wrap them in sponge, plastic paper or a soft tissue wrapped in a light bulb before installing. Be sure to remove these wraps after installation to avoid a fire when the bulb is turned on.
6, should not focus on the speed of light reflected by the backlight. Too much focus will lighten the color of the colored paper on the lamp in a short time, lose color, and even worse, burn a hole in the colored paper. If the direct distance of the luminaire and the flammable items are too close, it is impossible to point it out.
Operational skills: When adjusting the illumination beam of the luminaire, it is better to adjust the astigmatism slightly. If the illuminance is not enough, the luminaire can be supplemented.
7. Don't wear the color changer and forget to install the protective net cover . The protective net cover is to prevent the splashing of the light bulb and the burned items. There is no 2 stop pendant on the return light. The cover is used, and the outer one is used for the color changer. Some PAR lamps have a fixed protective net cover. Isn't that good?
8. Remember to make the distance between the lamps of the heat source and the flammable curtains too "intimate". Years ago, in a performance in a school in the Northeast, it was because of the lighting that caused the fire to ignite the curtain, causing hundreds of deaths and injuries. Therefore, maintaining a certain distance between the light and the curtain is important for the light. The distance between the direct direction of the 300W luminaire and the curtain shall not be less than 75px. The distance between the side and the tail of the luminaire and the curtain (stationary state) shall not be less than 2m. If the amplitude of the curtain swings is large, it may be close to the luminaire, preferably in the luminaire. A metal isolation net is placed in the middle of the curtain to prevent the curtain from getting on the luminaire and causing a fire. For lamps above 500W, the distance from the direct curtain is 5m, and the distance between the side, the tail and the curtain is 3m.
9. Do not exceed the power specified by the manufacturer. The power carried by each circuit on the light silicon box is described in detail in the specification. Generally, each loop carries 1KW, 2KW, 3KW, and 6KW. Taking 6KW as an example, the thyristor in the silicon box is also known as the solid state relay is 60A. Calculated, the loadable power is 13.2KW. Anyway, there is such a large power space, and more than 6KW can be installed on this circuit. . Only consider the current generated by the bulb at the moment of melting, so the problem is one-sided.
10. Do not cause three-phase unbalance when connecting the load . As we all know, the power input to the lighting silicon box is mostly three-phase four-wire system. When the lamp load is connected to the silicon box, blindly connecting the light load without being distributed may cause a three-phase imbalance. Then, when the light is illuminated, you will feel the difference between the lights.
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