1.1 Preparation of construction plan

(1) Organize all staff members participating in this project to provide detailed explanations on the significance of the project, construction difficulties, especially the requirements for construction period, safety, quality, etc., so that everyone understands the goals and responsibilities to ensure the construction period and quality.
(2) Provide necessary pre job retraining and safety education to all participating personnel, issue job certificates after passing the examination, and conduct systematic technical briefing to all personnel. Prior to the commencement of each process, a process construction technical briefing shall be conducted on the working layer in accordance with the technical written documents.
(3) Prepare office, living, and warehouse facilities, improve office and living conditions, and install temporary power supply lines for construction and living;
(4) On the one hand, negotiate with the owner to find a material warehouse, and on the other hand, arrange material management personnel to contact the specific supply plan for the required equipment and materials. At the same time, investigate the self purchased materials, compare their quality and unit price, and determine the purchasing manufacturer according to the requirements of the construction unit. After the warehouse is completed, purchase and enter the site.
(5) Under the leadership of the project manager, organize engineering and technical personnel to carefully conduct a review of construction drawings: the production of construction drawings should be detailed and standardized, in accordance with national drafting standards, and reflect the specific requirements of the construction site and construction organization. Construction personnel must be familiar with construction drawings, technical data, specifications and standards, discuss technical difficulties, identify problems early, and report them to the construction unit and design unit in a timely manner, so that problems can be solved before construction, ensure smooth construction, and reduce change negotiations.
(6) The construction unit assigns one project manager and one deputy manager to be responsible for organizing the construction of this project. Two professional foremen, one material officer, one budget officer, one quality inspector, one safety officer, and one firefighter, and labor and management personnel must comply with relevant management regulations and rules in China and Henan Province; The number of laborers will increase or decrease according to the progress and quantity of the project, with an estimated peak labor period of 20 people.
(7) Before the construction of sub projects, the project manager should implement construction technology disclosure, especially for difficult construction areas, and propose technical measures for sub projects. At the same time, work together with the material handler to develop a phased material supply plan, so that the construction can proceed smoothly according to the schedule and ensure smooth construction.
(8) Establish a construction site equipment testing system. After the initial inspection of the equipment is qualified, under the supervision of the project supervisor, immediately conduct electrical and mechanical performance testing with the supplier to ensure that the equipment supply quality meets the design requirements; At the same time, establish a project manager management system to assign quality responsibilities to individuals, ensuring that the quality management system can be effectively implemented at the start of the project.
(9) Construction machinery and equipment testing instruments shall be configured according to the plan and provided by the contractor for transportation to the construction site.
(10) Develop an implementable construction organization design, prioritizing the use of established construction process standards. Based on the characteristics of this project, develop detailed construction processes and technical standards, various quality and technical assurance measures, and formulate technical management methods and implementation rules.


1.2 Main Construction Plan
Before the commencement of the first chapter of the project, a detailed approval form for the overall material plan should be prepared, a construction tool entry plan should be arranged, and the project supervisor entrusted by the owner should consciously accept the spot checks and inspections of the system equipment and related construction materials to ensure that all equipment and materials meet the specification requirements and the project can start smoothly.
Chapter 2: Construction organization must be closely coordinated with building construction and other related supporting projects, and the installation of stage lighting power cables and signal lines should be arranged according to the progress of the project.
Chapter 3: Based on the wiring construction drawings, with accurate measurement and positioning, combined with written information such as the specifications and dimensions of the supplier's product samples, construction shall be carried out according to local conditions and quality.
In the specific construction process of Chapter 4, close cooperation should be maintained with various professional work. Professional construction personnel should strictly follow the construction drawings to timely lay and install pipeline supports, hangers, concealed pipes, sleeves, terminal boxes, boxes, etc., and try to avoid unnecessary rework.
Chapter 5: Before and during the decoration process, the electrical profession and civil engineering should cooperate well, coordinate construction, and ensure the safety protection of finished products.
Chapter 6: Timely and properly handle possible coordination relationships and disputes with relevant construction units during construction, ensuring the smooth progress of system engineering construction.
Chapter 7: Organize personnel to properly store the construction materials and equipment that have already entered the site, as well as protect the completed system engineering, in order to avoid damage to the completed system engineering caused by the construction of other trades. At the same time, we must also prevent our construction personnel from causing unnecessary damage to other completed construction projects during construction.
Chapter 8: Consciously accept the management and scheduling of engineering and process supervision, and do a good job in coordinating with the processes and procedures of various trades.
Chapter 9: When installing suspension rods, suspension cages, bridge sockets, and laying cables, please have the suspension rod construction unit send personnel to the site to assist in controlling the lifting and lowering of the suspension rods.
Chapter 10: Please ask the civil engineering unit to assist in the construction of the cabinet base and floor trough in the cabinet room. The decoration and ventilation system of the cabinet room and dimming control room must be completed before the equipment enters the site.


1.3 Stage Lighting Dimming Equipment and Lamp Installation System
(1) After the preliminary completion of the construction of stage lighting power cables, signal wiring, and connectors, the installation of dimming equipment and lighting fixtures will be carried out.
(2) Place the dimming equipment into the construction site one by one according to the construction sequence. To ensure the installation quality of the equipment, after the implementation of the equipment unpacking inspection procedure, the electrical and mechanical performance of the equipment shall be tested according to the parameters provided in the equipment technical documents. Only after passing the inspection can the equipment be installed.
(3) The equipment installation process needs to be closely coordinated with civil engineering, ventilation, air conditioning, water supply and drainage, weak current, decoration and other professions. Electrical engineering construction should be arranged according to the progress of the building project. During the decoration process, active cooperation should be made with the decoration unit, and the installation position of switches should be accurately reserved to avoid damage to the decoration during installation.
(4) During the construction process, strict protective measures should be taken for slotting and drilling holes on the walls, floors, indoor roofs, and outdoor roofs of buildings. After construction, they should be restored in a timely manner.
(5) Holes should be left on walls and floors, except for those required by the design to be retained. After the pipeline construction is completed, the holes should be sealed or fire-resistant separated in cooperation with the civil engineering profession.
(6) For the sake of completeness, the installation of lighting fixtures for the face light bridge and slap room must be carried out after site acceptance.
(7) All installation of lighting fixtures on electric systems must be assisted and controlled by relevant construction units.


1.4 Stage Lighting Dimming Equipment and Lamp Debugging and Testing System
(1) According to relevant national standards, debugging can only be carried out after all equipment is installed in place and there are no safety or performance hazards.
(2) The debugging of the equipment must be approved by Party A before proceeding.
(3) Equipment debugging mainly focuses on meeting the technical performance requirements of each device's settings, adjustments, and usage effects.
(4) During the equipment debugging and testing phase, on-site electricians must cooperate to ensure power supply safety.
(5) The equipment debugging situation and test results must be recorded in detail as engineering data for easy reference and maintenance.


1.5 Main Construction Methods
Quality control of key construction areas
(1) Establish an on-site quality management system with the project manager as the team leader and the deputy project manager as the deputy team leader. Establish the concept of quality first and serving users, and guide all work with the enterprise quality management procedure documents.
(2) To ensure that the project meets high-quality standards, a project quality inspection certificate audit outline has been developed. The outline determines the engineering control projects, the main control points, the work basis and standards, and the main controllers of each project. All work is standardized and responsibilities are assigned to individuals to ensure the achievement of the quality objectives of this project.
(3) After entering the site, the first step is to conduct a thorough on-site investigation and verify the drawings against the actual situation. Recheck the elevation, recheck the axis, set up vertical and horizontal controls, carry out demolition and renovation work, and comprehensively understand and grasp the on-site situation of the project. After each process is completed, internal inspection and acceptance should be carried out. Only after passing the inspection can the next process be carried out.
(4) During the construction process, strictly follow the construction drawings to develop the construction process flow, and carry out on-site construction according to the construction process standards. Each process should implement a three check system of self inspection, mutual inspection, and handover inspection, and promptly and truthfully record various inspection results.
(5) The laying of pipelines on the stage and ceiling should be arranged neatly according to the branch lines, and each circuit should be marked with signs.
(6) The installation of the socket box should be firm, in accordance with the requirements of the drawings, with proper grounding protection. Temporary power distribution should comply with electrical standards to avoid accidents.
(7) The separate boxes on the ceiling are securely installed, easy to operate, and labeled with the names of the control circuit and lighting fixtures.


1.6 Transportation and installation of stage lighting system equipment


1.6.1 Transportation of equipment and materials
To ensure that the equipment is in good condition during the secondary transportation process, electrical and mechanical performance checks should be carried out immediately after the equipment is opened for inspection. At the same time, the equipment packing list, certificate of conformity, equipment drawings, and other relevant technical documents should be checked to verify the equipment model, specifications, joint parts, components, accessory materials, and special tools. After passing the inspection, the packaging should be restored before transportation to avoid damage to the equipment casing and performance.


1.6.2 Installation of Power Supply
Qualified voltage and marking
＆#61656; Electrical equipment with AC voltage exceeding 25V effective value or DC voltage without pulsation at 60V (including disassembled modules, exposed telephone heads or sockets, and areas without removed protective covers) must not be exposed and touched under normal conditions. A warning label indicating the current voltage should be affixed to the protective cover of electrical equipment.
Shielding of live parts
＆#61656; The casing of electrical components or devices with AC voltage exceeding 50V effective value or DC voltage without pulsation at 120V shall be safely shielded due to insulation or grounding. Dismantling a single cover or shield requires the use of tools to prevent accidental contact, and both covers and shields should be labeled.


＆#61656; Mixed use electricity
＆#61656; In electrical cabinets or components containing controllers, computers, audio, or similar low voltage signals, when there is an AC voltage exceeding 110V RMS or a DC voltage without pulsation of 150V, there should be clear warning signs for the highest voltage on all removable boards.
＆#61656; Multiple power sources
＆#61656; When the device has two or more power sources, each power source should be separated and equipped with a light or electrical locking device. Do not supply power to the same device simultaneously.
＆#61656; grounding
＆#61656; All steel structural components, lighting equipment, audio equipment, operating consoles, electrical cabinets, metal enclosures, metal pipes, and equipment parts should be effectively grounded and comply with relevant standards.
＆#61656; Handheld devices
＆#61656; Specialized handheld or portable devices should be double grounded whenever the AC voltage exceeds 25V RMS or the DC voltage is 60V without pulsation, and there is no double insulation.
＆#61656; power isolation
＆#61656; If the power supply of electrical equipment is non safe voltage, a locally switchable switch (or circuit breaker) that can cut off the power supply should be installed on or near the electrical equipment to ensure the safety of maintenance. If it is a remote control device, a locally lockable switch (or circuit breaker) should be installed on or near the device. The power isolation device should be marked to prevent errors when isolating equipment:
＆#61656; Power on indication
＆#61656; All electrical cabinets containing electrical components or devices with operating voltages of 380VAC/220VAC must be equipped with large power on indicators, which should be prominently located and close to eye level. When using three-phase power supply, a separate indicator should be set for each corresponding device.
＆#61656; Voltage protection
＆#61656; The power supply or driving device should have a phase monitoring device. Electrical equipment should have protection against phase loss, undervoltage, and overvoltage.


1.6.3 Installation of cables, pipes, boxes, and connectors
＆#61656; Installation of cable tray
＆#61656; Determine the route direction → pre open through wall holes → install and embed brackets → measure and cut materials → lay cable trays → lay cable trays → fix tray covers → install socket boxes (terminal boxes) → fix the socket boxes (terminal boxes) according to relevant standards, fix the cable trays, and lay the cables and signal lines.
＆#61656; According to the design requirements, determine the installation position of the cable tray, and then assemble the tray. The assembled tray should be straight, with a horizontal error of no more than 5mm and a centerline deviation of no more than 5mm. The installation should be firm, with complete accessories and all bolts tightened. When the installation height of the cable tray exceeds 1.5 meters, scaffolding should be erected. After the installation of the cable tray, the cables can be laid. According to the design requirements, plan the placement and arrangement of cables on the cable tray, and scaffolding should be erected. Cable tray laying is generally carried out at high altitude, and special attention should be paid to construction safety. Human resources should be organized well, division of labor should be clarified, mutual cooperation should be carried out, and unified command should be followed. The scaffold should be firmly erected, fastened with fasteners, and equipped with railings to prevent personnel from falling.
＆#61618; Cable laying should comply with the national construction technology standard SBCQB-01006-2003 for building electrical engineering
＆#61618; Electromagnetic interference should be minimized during cable laying.
＆#61618; When using cable hoses, their length cannot exceed 1 meter.
＆#61618; Suspension or drooping flexible cables used for power or control circuits should be equipped with stress relief center core wires, which should be clamped at both ends to relieve wire stress.
＆#61618; The length of the wires should be appropriate, and the remaining cables should be coiled on cable reels or placed inside the equipment and firmly secured.
＆#61618; The core wires of multi-core and shielded cables used in power or control circuits should be easily identifiable by their numbers. Color codes are only allowed for cables with less than 25 cores. It is not allowed to use cable laying form or sequence to identify the number of cable cores.
＆#61618; Identification: The cable numbers at both ends of each power and control cable should be the same and permanently marked with a unique number. The cable number should be indicated on the wiring diagram.
＆#61618; Margin: The wire reel should be able to accommodate a sufficient length of cable to meet the requirements of the total equipment travel, including the travel required to the maintenance location.
＆#61618; All cable entry equipment, including wire reels and wire slip rings, should have appropriate entry connectors for cable replacement.
(1) The system cables are installed in metal cable trays, and cables installed vertically in cable trays must be fixed with U-shaped clamps.
(2) It must be noted that these lines are in an intersecting state, rather than being installed parallel to other signal lines. If it cannot be avoided, protective measures must be taken; The wiring of the connection frame, dimmer, and direct power socket consists of a single cable, and the length of each cable is based on the quantified results of the on-site survey.
1.7 Installation of Lighting Equipment


1.7.1 Installation process of dimming cabinet
Open the box and unpack → Check the appearance and spare parts → Tighten the cabinet to the base with bolts → Guide the output and input cables into the cabinet through the floor trough → Connect the circuit according to the system diagram → Power on for trial operation (no-load) → Gradually add load for trial operation