Stage Lighting Design Standards
Create a comprehensive stage lighting scale space, integrating all lighting regulations.
To ensure continuous operation of the system software, moderately increase reserves and expand indoor space.
Interference resistance and safety coefficient as the primary design criteria.
The new energy-saving and environmentally friendly cold light lighting fixtures have been introduced into the system design.
DMX512 analog signal internet technology has been integrated into all stages of system design.
Second, Stage Lighting Equipment System Technical Design Regulations
The system's technological design and equipment configuration are adaptable to the usage of a comprehensive theater, allowing for the alternating of various lighting operation plans for different opera genres in the short term.
The system design allows for quick transitions between lighting schemes, with the conversion time taking place within 2 hours.
3. The system allows for the application of all the various types of lighting fixtures and supplementary equipment equipped.
4. The system's design offers ample reliability and storage capacity, ensuring continuous diagnostic checks on the main control panel without interruption of the main power supply.
5. The equipment within the system meets the technical standards for sound decibels on actual performance stages. In an unoccupied venue, the noise from all lighting effects equipment turned on, along with external noise, does not exceed NR25. The noise from the 1M actual effect equipment used for testing must not exceed 30dB.
6. The system's expandability was intentionally designed into the system's conceptual plan, such as for the volume of silicon-controlled power engineering and network capacity. This allows for future scalability as assets become more abundant or new technologies are applied, ensuring that the system can avoid major redesigns or upgrades due to insufficient initial design, thus saving on capital investment and quickly adapting to changing needs.
Section Three: Lighting Effect Electrical Equipment Cabinet Settings
1. The server cabinets and sound card racks for electrical equipment are made of metal and thick steel plates with anti-rust treatment. Cabinets made of steel or channel steel can be upgraded upon request. Electrical equipment cabinets are equipped with anti-fouling and waterproof measures. In addition to natural ventilation and cable entry/exit slots, all network cabinets and sound card racks are fully enclosed. Each network cabinet's depth ensures adequate space for equipment and wiring. Each special group of network cabinets has the same depth, relative height, and color.
2. Natural ventilation is ensured, allowing all electrical components or equipment to operate continuously within the common housing and required environment. The network cabinet is equipped with adequate natural ventilation. To dissipate the heat generated by the equipment, fine mesh or foam plastic grilles are used according to the mouth to prevent impurities from entering. The housing should be pressure-sealed and air supply should pass through the filter.
3. Cable entry and exit lines are pre-buried at the required locations on the construction site; detachable panels are provided for on-site production and processing. The cable entry and exit points are designed with consideration for the cable's outer diameter, direct burial installation, and sufficient bending radius, and are equipped with cable positioning devices.
4. The cabinet doors and maintenance control panels feature sufficient rigidity in their door and shell design. The doors and control panels are removable for maintenance, and the control panels are equipped with anti-fouling sealing strips. All cabinets and control panels are coated with dried paint after thoroughly removing oil and rust.
5. The components in the equipment cabinet should also be clearly labeled, without temporary stickers or pen markings. The factory plate and label dimensions are sufficient to be read from a distance of 2 meters away under normal lighting conditions.
Four, lighting system electrical equipment, cable lines, and wiring installations
The wiring from the silicon room to all power outlets consists of three identical-length wires, exported by twisting. The light wires and power lines for sound, video, etc., are kept separate, and must form a 90° crossover when they meet, with a spacing of 0.5 meters. If parallel placement is unavoidable, the spacing should be set to over 1 meter.
All signal connection cables are made with five-core shielded cables to prevent interference.
3. Equipped with a separate grounding main, power engineering cables and lighting wires should be installed within metal bridge structures, which should be grounded.
4. The power socket box is separated by a metal partition between strong and weak power sections, preventing interference from weak power on the electrical engineering, ensuring the safety of the overall wiring system.
5. Utilizing low-smoke (LSF) and flame-retardant PVC insulated copper wire cables, the cables should be capable of long-term operation at 90°C temperatures. Under normal application conditions, their service life should be 30 years or more.
6. The plug-in boxes are manufactured with goods from various countries, conforming to "National Standards" factories, featuring a metal barrier separating the strong and weak power installations within the box to ensure safety and promote electromagnetic compatibility testing.
7. Cable tray bridges utilize thermistor cables for fire detection, preventing cable fire accidents.
8. Fire safety solutions are implemented on cable bridge covers or conduit channels. The specifications, working voltage, cable current carrying capacity, cross-section, cable type, and protective sheath should meet the requirements of the power circuit type, transmission specifications, usage scenarios, and direct burial installation, and comply with relevant standards.
9. The operational drive cables for moving parts are made of fire-resistant flexible cables. The installation of the cables must comply with the standards of GB50258-96 "Construction Quality Acceptance Code for Wiring Construction of Electrical Equipment Installation Projects Below 1KV."
10. During cable laying, interference signals should be reduced to a low level. When using cable plastic hoses, their length should not exceed 1 meter. Suspenders or drooping flexible cables used for drive forces or control circuits should be equipped with stress relief core copper wire cables, which should be clamped on both sides to release the wire's ground stress.
11. Multicore and shielded copper-core cables used in drive or control loops are easily identifiable by numbering; only cables with less than 25 cores use color codes. Cable type identification does not rely on cable laying methods or sequence.
Each side of the drive cable features the same cable sequence number, accompanied by coded markings. The cable sequence numbers are indicated in the wiring method.
13. The cable lines should be sufficiently long to accommodate the total travel requirements of the relevant machinery and equipment, including the travel arrangements needed for maintenance sections. Among all the cable entry devices, there should be adequate entry connectors for ease of cable replacement. The remaining cables should be coiled on cable drums and placed inside the machinery and equipment, securely fastened in place.
14. During the installation of boxes and cases, align them vertically at both ends of the wall with an upright error not exceeding 2mm. Arrange the incoming and outgoing cable boxes neatly and leave adequate space. Different control circuits, working voltages, and AC/DC power supply wires should not be routed through the same pipe. The wires inside the pipe must not have joints or bends. Install wire protectors at entry and exit points to maintain the wires. Before laying cables, carefully inspect for mechanical damage and then conduct insulation resistance testing. The installation of the drive and lighting cabinets meets the quality standards for electrical equipment construction specifications in our country. The floor-standing power cabinets are securely mounted on angle iron or channel steel bases, fastened with screws, and grounding devices are properly installed. The incoming and outgoing cable pipes are approximately 10 cm higher than the base level. Installation specifications are as per the engineering drawings, with the inspection door mounted flush against the wall. The vertical installation angle of the vertical power cabinets is 1.5mm per meter, and the intermittent joints between panels are 2mm. Lighting cabinets are generally wall-mounted, and this project uses both exposed and concealed installations. The concealed mounted distribution cabinets are installed directly into the wall during construction or can be installed in pre-drilled holes in the wall. Ensure the installation is sturdy, grounding devices are excellent, and the installation is level, straight, and conforms to design specifications. The bottom is 1.5 meters from the ground, the lighting cabinet has an upright error not exceeding 3mm, and the pipes leading to the distribution cabinets are securely fastened with pipe caps and anti-loosening nuts. When installing the distribution cabinets, the surface of the back panel is painted evenly, and the pipes inside the cabinets are installed using concealed methods.
