National Lighting Quality Supervision and Inspection Center, National Electric Light Source Quality Supervision and Inspection Center (Shanghai), Shanghai Times Light Lighting Electrical Testing Co., Ltd.
Ling Li
Abstract: This paper summarizes and analyzes the current problems of stage lighting and proposes solutions.
Keywords: stage luminaires, markings, structures, grounding regulations, external and internal conductors, durability testing and thermal testing
With the development of the country, people's living standards have generally improved. Everyone is increasingly pursuing their own quality of life. Frequently held cultural performances and colorful film and television programs have become an inseparable part of people's lives. These performances, film and television production are inseparable from the lighting that provides lighting for them - stage lighting, television, film and photography venues (hereinafter referred to as stage lighting). In fact, the existence of such lamps has a long history, and its use in the field of cultural interpretation is also very common. It is reasonable to say that it should be considered a mature lamp. Is it really mature and safe?
the answer is negative. The photography association has sent a large number of stage lighting fixtures, including the best in the industry, but the test results are beyond the expectations of everyone. Every lamp has more or less problems. It can be said that there are some problems. No luminaire is fully compliant with the standard. So what are the common security issues? How to solve it? Below I mainly take the most common type I IP20 stage lighting fixtures using 750W tungsten halogen lamps as an example to give a brief introduction to the most prominent problems.
First, the application of standards
Since the stage lighting is not a mandatory lighting fixture in China, many manufacturers do not know what standards the stage lighting should meet. Some manufacturers only know the special requirements of the stage lighting. In fact, the current application standards for stage lighting are:
——GB 7000.15-2000 Safety requirements for lamps for stage lighting, television, film and photography (indoor and outdoor) (equivalent to IEC 60598-2-17: 1984 + A1: 1987 + A2: 1990)
- GB 7000.1-2007 Luminaires Part 1: General requirements and tests (equal to IEC 60598-1: 2003)
The former is a special requirement standard, which is the standard for stage lighting. The latter is a general requirement standard, which is the standard for all lamps to meet the requirements. In other words, the stage lighting must not only meet the requirements of GB 7000.15, but also meet the requirements of GB 7000.1.
In addition, the latest version of the standard for GB 7000.15 has been published as:
——GB 7000.217-2008 Part 2-17: Particular requirements for lighting for stage lighting, television, film and photography (indoor and outdoor) (equivalent to IEC 60598-2-17: 1984 + A2:1990)
This version will be officially implemented on February 1, 2010 instead of GB 7000.15-2000. The difference from the original standard is that some editorial changes have been made, and the translation of the original standard is not accurate enough. This version is also equivalent to the current IEC standard, so we can use this version directly when designing stage lighting.