I. Safety Risks and Protection Ideas Existing in Design
Silane is a kind of spontaneous gas with a wide range of combustion, but when it is released into the air, it does not necessarily burn immediately, sometimes it may not burn at all. Understanding this, we can improve the safety of the design and operation of the system, as well as the reflection procedure in the event of an accident. According to a large number of academic studies on silane (FM Global, Intel, Hazards Research, etc.), the combustion of silane has a considerable relationship with its release mode and changes in the surrounding environment. Water mist can reduce smoke and dust, but be careful not to extinguish any flame caused by silane. Fire extinguishing can only be done by cutting off the source of silane leakage. If the silane flame is extinguished before the silane leak source is cut off, the silane will gather and cause an explosion. The flammability limit of silane is very wide, and diluted silane will expand the flammability range, rather than reduce the combustion range. The lower limit of flammability limit of silane is 2%. When different diluents are introduced, the flammability range is much lower than this concentration. The ambient air temperature and humidity also affect the flammability limit. Many companies use gas cabinets to supply silane. There is a high probability of explosion when the gas cabinet opens. The explosion of Tainan Solar Power Plant in 2005 happened at the moment when the gas cabinet opens.

II. Safety Risks and Protection Thoughts Caused by Human Factors
Some literatures point out that silane burns in a "cool" flame. This view cannot be fully believed. The flame temperature of silane combustion is not constant, sometimes it cannot ignite paper, but in many cases it can melt metals like brass and aluminium. But the fire-proof and heat-insulating clothes we use in our daily life can not guarantee the safety of direct contact with the flame without instantaneous approaching the temperature of 800-900 C. This is the misunderstanding of the managers and operators of many domestic electronic factories using silane. It seems that as long as the fire-proof clothes are cut off and put on, the emergency personnel can carry out any high-risk operation. 。 This will put our operators at high security risk.

3. Safety risks and protection ideas before commissioning
At the end of the five tests, the air blowing test must be done before the connection can be carried out, otherwise there is a risk of misconnection. At the same time, the flow test must be done after the air supply. The loss caused by the misconnection of the pipeline is difficult to predict.