The manipulation of light, there cannot be any arbitrary, because the lighting control has its own norms and operating skills, otherwise, will cause the light bulb, lamp, lamp control station is damaged, or even cause fire disaster, cause severe loss.
The following is the actual work that often appear in the wrong operation, point out here, for reference.
1 in light bulbs cold state, suddenly pushed bright ( full) lighting, it may cause the bulb" bang" explosion; or cause tungsten fuse.
(1) because the light bulb in the production process, the glass bulb shell is uneven, resulting in the phenomenon of uneven heating. When suddenly push light bulbs, will cause the bulb glass shell instant heat, as if life into an empty glass bottle filled with boiling water the same effect.
(2) at the end of the light bulb in the later, become cold by heat in the process, will absorb the water molecule in the air, the water molecules will remain in the bulb glass casing aggregation. When you suddenly push light bulbs, glass shell of water molecules, as in the hot oil in water injection effect as, bulb explosion is logical.
(3) suddenly push light, will cause the instantaneous surge current ( elevated ), this will be an easy job to tungsten filament fusing.
Skills: when the light bulb in the cold state ( before the opening before), the console fader only push a little ( say pressure light state ), so that the light bulb light, let it in the preheating state, so that the heat evenly, and evaporating condensation on the glass bulb shell water molecules after a few minutes, preheating, pushed a bit lighter, longer preheating after several minutes, they will be pushed fully bright lights.
2not to be dimming units fader chock full of state, and then open the silicon box power supply. The results and the results are the same, two things will damage the bulb. Should the dimming units all faders is closed, open silicon box power supply line.
3 avoid in a switching device, the lamp control stage and silicon box power in reversed order. The power source is turned on, to turn on the lights and control station in the power supply, then open the silicon box power; when the power supply is switched off, first close the silicon box power, after the closure of lamp control station power supply. If you invert the operation sequence of words, will cause all lights flash, this will affect the service life of the bulb.
4 Shun in the bulb push light, big movement shaking lamp. Tungsten filament will break or fall off.
In the light bulb, the temperature increased gradually, tungsten also become soft, while the effects of gravitation, tungsten is corresponding also drop ( if not using a screw bulb tungsten filament, such phenomenon particularly apparent ), this action wobble lamps, wait until the light completely cooled, can remove.
5 avoid replacement bulbs, direct hand contact with the bulb, it will affect the smoothness of the bulb, and the other a recessive harm is led bulb explosion.
(1) finger grease or finger and bulb glass surface friction will leave "Scar", thus affecting the bulb smoothness and transparency so affects the normal illumination bulb.
(2) if the fingers are sweat, fingers and bulb" intimate" contact, in the sweat salt molecules will absorb the water molecule in the air, once the bulb has water, when the bulb is rising rapidly, it is easy to burst broken.
Skills: the replacement of the lamp, you must first put on the gloves, to contact with the lamp. If there is no gloves, available packaging bulb sponge, plastic paper or soft tissue wrapped, then the installation, installation must remember these inclusions is taken off, in order to push the fire light bulb.
6will avoid light shines out light adjustable focuses. Focuses in a short period of time, will be installed on the lamp the paper color fades, the loss of color, what's more, the paper scorched out of a hole. If the lamp point-blank range and flammable liquids near, could not the point.
Skills: adjusting lamp irradiation beam, adjusted slightly astigmatism point as well, if insufficient illumination intensity, can supplement the lamps.
7 avoid installed color changer and forgot to load protective net cover, protective net cover is to prevent the bulb explosion flying wounding and burns.
Like the light is not on 2retaining groove on a pendant, which is installed in the protective net cover, and a baffle is mounted outside the color changer used, some PAR lamp has a fixed protection net cover, this is not good?
8remember that thermal light source lamp with a combustible curtain distance is too"". Years ago, the northeast at a school in a performance in the process, because the lights will ignite the fire curtain, causing hundreds of deaths and injuries. Therefore, the light and the distance is to light important. 300W lamp to direct direction and curtain distance shall be not less than3cm, lamps, rear and side curtain ( stationary ) for a distance of not less than2m, if the swing range is very big, there may be close to the lamp, preferably in the lamps and curtains intermediate set a metal isolation net, to prevent the curtain draped over the lamps caused the fire. More than 500W lamps, direct screen distance in the5m beyond, side, rear and the distance in the3M outside.
9 avoid the installation of lighting power exceeds the manufacturer specified power. Light silicon box on each loop carrying power in a specification is described in detail. Each loop bearing power of 1KW,2KW,3KW,6KW. As in the case of the 6KW, silicon box SCR solid-state relay is also known as60A, calculate, can bear power is 13.2KW, anyway, so large space of power, in this circuit can be installed on the 6KW above the light. The author thinks, consider only the light bulb in the fuse moment generated by the current, consider this problem is one-sided. Say not without any cause or reason for manufacturers have so large power silicon controlled, this is a grain of truth in it. Some say a example.
A four Stars Hotel engineering staff, in repair room lamp, lamp inside a60W incandescent bulb has burned out, but also found to govern the lights of a 6A insurance tube fuse, as we all know, a60W incandescent bulbs in the operating current of 0. 27A, namely60W lamp tungsten filament fuse moment, produced more than 6A current, excluding insurance tube error of1A, that is to say the light bulb fuse transient current is5 times as much as the working current. Silicon box manufacturers in the design of each loop of the controllable silicon current only actual load current of 2.2 times, this may be too small, so the use of the lamp control station for a period of time, will find that with the bulb damage more controllable silicon, silicon box are breakdown, light Chang Liang not shut or not adjustable the phenomenon of light corresponding to rise more.
10 avoid under load, causing the unbalanced. As we all know, the light silicon box input power, mostly in three phase four wire system. The lamp load connected to the silicon box, if not through the distribution, blindly will light load is connected, it is possible to cause unbalanced phenomenon. Then, when the light was pushed after the light, you will feel the light shading difference between.
For example, a18 circuit dimming units, each circuit load power is 6KW, input power380V, it 's1-6loop in C phase. No load is connected, the multimeter is used to measure A, B, C, three relative to the zero line voltage is220V. If silicon box1-6circuit connected with36KW light load,7-12circuit connected with18KW light load,13-18circuit connected with6KW light load. In this case all the lighting push light, and a multimeter to measure, A relative to change the measurement results are200V, C relative change of measurement result is 220V, this is the unbalanced phenomenon, this phenomenon tells us, the load increasing, the voltage drop is more obvious, the low voltage of a phase of light than the high voltage a the light intensity was low.
Skills: lighting the total power divided by 3 equals to each phase of the allocated power. In the examples above the power number for example:600KW divided by 3is equal to 20KW, i.e.1-6,7-12,13-18circuit each phase of each load20KW, such as balanced three-phase voltage
