Wednesday, December 15, 2010
Weak current College】 【lighting division operation considerations.
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. And here is the actual work is often the mistake operation, point out that lesson.
I. in the State of the cold bulb, suddenly pushed off (full) lighting, results may cause the bulb "snapped" a shards; or lamp) T audio technology Super Forum tungsten wire fuse.
(I > 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's audio technology Super Forum, gathering glass shell. When you suddenly pushed off the bulb, the glass shell of water molecules, as if to the boiling cream in the same water, the effect is also broken bulb Al natural things.
(3 melon so 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 (opening), the control bench pusher of faders only some (often said by calendering State), the micro-lights, bulbs, {so that it is in the State, to preheat the heat evenly, while the Yen's fall condensation in bulb glass shells of water molecules, warming up after a few minutes, and then push the ~ bright, 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 will also be damaged bulbs. W 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 ' open Silicon case of power; the power off, turn off the power of Silicon case, turn off lights and control console. If you reverse the order of operations, will cause all lighting and sound techniques are Flash, 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, if the lamp does not adopt screw shaped tungsten, this phenomenon is particularly evident), in which case the big rocking lamps, tungsten peeling fracture easily.
Operational skills: when the lamp was lit, quickly adjust the lighting, but actions to light. In the demolition of the lamps, they 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 c audio technology Super Forum shards.
(1) finger of grease or fingers and bulb glass surface friction will stay "scars", thus affecting the bulb finish and transparency, thus affecting the bulb .r's normal illumination.
(2) If a sweat on her finger, fingers and bulb "intimate" contact, sweat in salt molecules will be left in the glass-case, as we all know B) 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 packaging plastic paper lamp by sponge or soft tissue, and then make install, the installation must remember these wrappers down in case when the push-off lamp, fire
6. avoid the back light rays from the light beam tuning too focused. Too much focus is within a short period of time will be mounted on the front of the pale at the light coloured paper quite, lose color, moreover, will always add roasted with burning a hole. If the direct distance between the lamps and inflammable substances too close together, there may be lit.
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. Audio technology Super Forum 7, avoid the color change at the same time forgot to install protective net mask, protective netting to prevent lamp shards when splash wounding and burns. Like back to $ H "lamp with 2 retaining pendant grooves on the inside of a block is mounted protective net enclosures, and outside a block is loaded for use of color, PAR lamps, H has fixed protective NET cover, this is not very good?
' 8. don't make 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 allowing induced by N. 300W lamps direct direction and distance of the curtain shall not be less than the side 3m, lamps, tail and curtain (rest) for margins: audio technology from Super Forum shall not be 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 Sm, side, rear 1] and the curtain of distance outside the 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 on the specification. Generally each loop carrying power have 1kW, 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, for such a great power in space, in this circuit can be installed on more lights 6kW. PenConsidered that only considered light-normal use State power and current, without considering the bulb in (~ fuse generated by 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-inside. The following example: a
A four star hotel's engineering staff, the maintenance room lighting found that within a bedside lamp 60W incandescent bulb burned out, and also 4 found jurisdiction dual-purpose a 6A fuse has a meltdown, we all know that a 60W incandescent bulb of 60W, i.e. current 0.27A of tungsten filament lamps for instants in the fuse, the resulting electricity 6A and above, excluding fuse 1A and negative error, i.e. the bulb voltage transient currents is it operating current of 5 times. Silicon case for manufacturers in the design of each loop SCR current only actual bearing currents 2.2 times, this is too stingy, so use lamp control console after a short period of time, you'll see corrupted as bulb, Silicon box www. the breakdown of the SCR is also always turn off the lights not or not-adjustable optical phenomena in a corresponding number.
10. avoid when connected load, resulting in a three-phase unbalance. As we all know, the light transmission of Silicon case, most of the power supply is a three-phase four-wire. B in the lighting load attached to the Silicon case, if not subject to distribution, sterile eye to light load to connect, they can cause gas. uneven phenomenon. Then, when the light was pushed off, and you'll feel the difference between the light and lighting.
For example, one is a loop of dimming platform that every loop is hosting power, transmission and human power 6kW 380V, 1-6-circuit A is in A phase, 7-12 circuit is in phase B, 13-18 loop in C phase. Never before received load, multimeter measuring A, B, C three relative zero line voltage is 220Vo assumptions of Silicon case 1-6 a circuit has been received by the light load 36kW, 7-12 circuit has received 180kW light load, 13-18 circuit has received 6kW light load. This case will push all the lights off, and then use multimeter measurement, audio technology Super Forum 7n8}; A relative measurement results is zero line 200V, B relative measurement results of the zero line is 215V, C relative measurement results of the zero line 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 o light illumination obvious) lower.
' Operation skills: install lighting of total power + 3} each phase of the assigned power. Take the above example the number of power as an example: 60kW = 3-1 h i.e. _ZOkWx5} ...6, 7-.12, 13-18 circuit of the load per phase, this phase voltage only 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 I10V, 220V, 240v 3 retaining selection, 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 of/20V, this will lead to insufficient computer lamp power supply. I previously used an early United States production computer scanning lamp, its bulb is 24V 250W halogen bulb, and bulb with U is Germany and Europe, Yuen Long, but the lamp took less than a week, so burned out bulbs only in this short life? later, inadvertently multimeter measurement it is 240V power supply voltage, and the line and the line voltage is between 390V} 400V, this is realized, because + I7w8V4 hotel using a dedicated transformer, voltage relative high number, so that the computer lamp voltage of power supply to the lamp is correspondingly high, therefore shortening the life of the lamp. Operational skills: choosing when to rated voltage 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 u! Q, M.r & J "k1t * I fruit where there is no special transformer, but from external transformer power supply, it would have to buy a high-power voltage 380V, will supply voltage-stabilized 0h) set in the normal range as well.
12. do not take hold of the public in line with the light. Half a year ago, the author in a television studio in help, in the Studio of 3s 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 timely notify the recording side, who in the absence of la total gate, unauthorized release public zero line of bolts, prepare the device for the zero line in parallel. Result lamp, light, ' knowledge using the light, which resulted in many bulbs shards, also caused Silicon box A phase of small transformer burnout.
"I6 reason: when the public release of zero line, the transformer inductance of EMF to lamps of the zero line, so that the loop, in load audio technology Super Forum lighter one phase formation pressure, burnt out bulb and Silicon case of transformer.
Action Tip: when you install lights, on the frame border below and to the Earth where to play a piece of ground 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 of L audio technology Super Forum, under the conditions also 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 LoTighten the bolt. 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.
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