Weak current College】 【control stage lighting tips and taboos (go).

As the saying goes, there is no rule hard to achieved by. Therefore, in the manipulation of light, there can be any arbitrary because lighting control has its own practices and skills, otherwise, would cause the light bulbs, lighting, lights, dials, damage, or even cause fire, causing serious damage.
The following is the actual work is often the mistake operation, point out that lesson.
1. in the light bulb cold state, suddenly pushed off (full) lighting, results may cause the bulb to "snap" of a sound-blasting pieces; or cause a bulb tungsten wire fuse.
(1) because the bulbs in the production process, the lamp glass shell thickness unevenness inevitable and therefore lead to heated unevenness of the phenomenon. When suddenly pushed off the lamp, causing the lamp glass shell instant heating up, as if life to an empty glass filled with boiling water the same effect.
(2) after you are finished using the light, the light bulb in the hot-cold, will absorb the water molecules in the air, the water molecules will stay on the bulb on the aggregation of glass shell. When you suddenly pushed off the bulb, the glass shell of water molecules, as if boiling cream in water-like effect, bulb shards is logical.
(3) suddenly pushed bright lights can cause momentary impulse current (rise), so easy to bulb tungsten wire stripping off.
Operational skills: when the lamp in the cold state (warm-up before), the control bench pusher of faders only some (often said by calendering status) so that the lamp-lit so that they are in a State to preheat the heat evenly, while evaporated condensation in bulb glass shells of water molecules, preheating after a few minutes, then push off, then warm up after a few minutes before the light fully pushed off.
2. avoid the dimming platform faders to push full, then turn on the power of Silicon case. The result is the same as the above results, and the two damaged bulbs. Should be dimming platform all faders is off, the line open Silicon case power supply.
3. avoid in switching equipment, light control console and Silicon case power supply out of order. Turn on the power, the first open lamp control console's power, then turn on the power of Silicon case; turn off the power, turn off the power of Silicon case, turn off lights and control console. If you reverse the order of operations, will cause all rows are blinking lights, this will affect the life of the lamp.
4. do not push the light bulb, the big move shake lights. Bulb tungsten peeling will therefore fracture or.
Bulbs in the lights, the temperature gradually rise, tungsten accordingly will become soft, while under the influence of gravity, tungsten wire blepharoptosis accordingly (if the lamp does not use screw-shaped tungsten, this phenomenon is particularly evident), in which case the big rocking lamps, also have to wait until the light be cooled before demolition.
5. do not replace the bulb, bulb direct contact with hands, which affect the bulb finish, while another hidden hazards is led bulb of shards.
(1) finger of grease or fingers and bulb glass surface friction will stay "scars", thus affecting the bulb finish and transparency therefore affected the normal illumination of the lamp.
(2) If a sweat on her finger, fingers and bulb "intimate" contact, sweat in salt molecules will absorb the water molecules in the air, and once the water on the bulb when the bulb when the rapid warming, it is easier to burst.
Action Tip: when replacing the lamp, be sure to wear gloves, then go to the contact with the bulb. If you do not have gloves, available package lamp by sponge, plastic paper or soft tissue, and then make install, the installation must remember these wrappers down so as not to push the light bulb is the fire.
6. avoid the back light rays from the light speed is too focused. Too much focus is within a short period of time will be installed in front of coloured paper color fading, lose color, moreover, will always add roasted with burning a hole. If the direct distance between the lamps and flammable substances near, not likely be point.
Action Tip: adjusting the lamp radiation beam, tuned slightly astigmatism is better, if it is not enough you can supplement the luminance in the luminaire.
7. don't put the color change at the same time forgot to install protective net mask, protective netting to prevent light bulb when splash wounding and burns article
Like the back light is not on the 2 retaining pendant grooves on the inside of a file is packed with protective netting, while outside a block is loaded for use of color, PAR lamps have a fixed protective NET cover, this is not very good?
8. remember the hot light source lamp and inflammable screen distance too "intimacy". Years ago, the northeastern one school at a time during the performance, because the light will be lit a fire caused by a curtain, causing hundreds of casualties of the tragedy. Therefore, lights and curtains, and maintain a certain distance between is by importance. 300W lamps direct direction and distance of the curtain shall not be less than the side 3cm, lamps, tail and curtain (rest) of distance shall be not less than 2m, if screen swing of widely, it is possible to lighting, the best in lighting and curtains in the middle of a metal separate mesh to prevent the curtain on lamps and cause a fire. 500W lamp above, direct screen distance in 5m, side, rear and screen outside of distance in 3m.
9. avoid the installation of lighting and power over the power required by manufacturers. Lighting Silicon case for each circuit hosted by a power in the manual there are detailed instructions. Generally each circuit, hosting a 1KW power 2KW, 3KW, 6KW. Respect to 6KW, for example, Silicon inside the SCR is also called solid state relay 60A, calculations, can host power is 13. 2KW, anyway there is so much power in space, in this circuit can be installed on more lights 6KW. The author believes that only considers the bulb in fuse the current moment, like the problem is one-sided. Besides the manufacturers do not begin with such a high power of SCR, this is some truth in it. It said that a case in point.
A four star hotel's engineering staff, the maintenance room lighting found that within a bedside lamp 60W incandescent bulb burned out, also found that the jurisdiction of an illuminated 6A fuse and fuse,We all know that a 60W bulb in the working current of 0. 27A, meaning the tungsten filament lamp 60W in fuse moments generated electricity 6A and above, excluding fuse 1A and negative error, i.e. light bulb moment is it current fuse operating current of 5 times. Silicon case for manufacturers in the design of each loop SCR current only actual load current of 2. 2 x, this is too stingy, so use lamp control console after a short period of time, you'll see corrupted as bulb, Silicon inside the SCR is also light on the breakdown of, not a closed or adjustable optical phenomena in a corresponding number.
10. avoid when connected load, resulting in a three-phase unbalance. We all know, lighting and Silicon case input power, mostly three-phase four-wire. In the lighting load attached to the Silicon case, if you do not go through the allocations blindly to connect the light load, some of them may result in unbalanced phenomenon occurs. Then, when the light was pushed off, and you'll feel the difference between the light and lighting.
For example, have a computer with 18 circuit of dimming platform, it is each circuit is hosting the power, input power supply 380V 6KW, 1-6 loop in C phase. Never before received load, multimeter measuring A, B, C, three relative zero line voltage is 220V. Assuming that the Silicon case for 1-6 a circuit has been received by the light load 36KW, 7-12 circuit has received 18KW of light load, 13-18 circuit has received 6KW light load. This case will push all the lights off, and then use multimeter measurement, A relative change in measurement result is 200V, C relative change in measurement result is 220V, this is the phenomenon of three-phase unbalance, it tells us that load, the more the more obvious voltage drop, a phase of low voltage lighting voltage higher phase of lighting intensity significantly lower.
Action Tip: install the lights of the total power in addition to 3 equal to each phase of the distribution of power. Take the above example the number of power as an example: in addition to 3 equal to 600KW 20KW, i.e. 1-6, 7-12, 13-18 circuit of the load per phase, three-phase voltage 20KW on balance.
11. don't adjust lighting of rated voltage selection switch. Imports of electric power line up next to an adjustment of the rated voltage of the transformer block switch with 110V, choice of 3 retaining 220V240V, if you set the stop to 110V, which active voltage is 220V, fire insurance, serious will burn out the power transformer. If you set the profile to 240V, so tall that current voltage 20V, causing a power shortage. intelligent lights
I previously used an early United States production computer scanning lamp, its bulb is 24V 250W halogen bulb, and the light bulb is Germany and Europe, Yuen Long, but the lamp took less than a week, so burned out bulbs only such life? then inadvertently multimeter measurement it is 240V power supply voltage, and the line and the line between the voltage has dawned 390V-400V, which, because of the exclusive hotel, relatively high voltage transformer, so computer lamp voltage of power supply to the lamp is correspondingly high, therefore shortening the life of the lamp. [fenye]
Operational skills: select rated voltage to retaining local conditions, based on the current supply voltage value to select gear, if the unit has a dedicated transformer, and you use the light at the height of the measured voltage too high, you can apply to the Engineering Department special transformer voltage block on a reduction flange, thereby protecting and extending all the life of the lamp.
In addition, in the adjust special transformer voltage block, nor is eternal, depending on the season of electricity, to adjust the voltage. If the unit does not have a dedicated transformer, but from external transformer power supply, it would have to buy a high-power voltage 380V, will supply voltage stability in normal range.
12. remember to have received a solid public zero line of light. Half a year ago, the author in a television studio in help, in the Studio is preparing to record the program, at which time the switch room next to, someone is installed a new large-scale equipment, construction party fails to promptly notify the recording side, in the absence of la total gate, unauthorized release public zero line of bolts, prepare the device for the zero line in parallel. Results for lighting in knowledge using the lamp, causing many bulbs shards, also caused Silicon box A phase of small transformer burnout.
Cause: when the public release of zero line, the transformer inductance of EMF to lamps of the zero line, so that the loop, in the light of the load phase formation pressure, burned bulb and Silicon case of transformer.
Action Tip: during the installation of lights, in the frame below the border areas of the Earth to the underground hit a 1.5M long iron, iron on a piece of copper wire, copper wire 6MM2 other end frame zero line on the public, so that both enable the common zero line in the short time shedding even worry about burning light bulbs and appliances.
In addition, the public zero line, be sure to tighten the bolts of pressure, but also because changes in warm and cold weather, also affect the health of the wire. Therefore, after few months also will bolt tightening.
Lastly love light, it can display its charming side.