There are a number of external causes that can occur in firefighting equipment, and these can interfere with the normal functioning of the firefighting equipment.

External causes can be mainly divided into the following categories:

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1. Natural disaster

- Earthquake: Can affect the structure of a building, causing damage to firefighting equipment or pipes.

- Storms, floods, typhoons, lightning: can cause electrical damage or failure of external systems.

- Heavy snow: May impede access to fire trucks or cause damage by loading on external parts of firefighting equipment.

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2. Artificial causes

- Construction work: External shock or vibration from construction work taking place nearby may damage fire protection equipment.

- Accident: There is a possibility that firefighting facilities may be damaged by vehicle collisions, falling objects, etc.

- Chemical spills: Spills or accidents at chemical plants can contaminate or disable firefighting equipment.

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3. Factors caused by human behavior

- Abandoned objects: Objects illegally placed near fire exits or equipment may impede firefighting operations.

- Careless actions: Firefighting equipment may be misused by staff or residents who do not know how to use it.

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4. Other technical factors

- Electrical problems: Firefighting equipment may not function due to problems with the external power supply or power outages.

- Communication failure: Communication failure of the fire alarm system may delay response in emergency situations.

- Failure may occur due to reduced insulation strength caused by aging of the wire.

- Failure due to damage or malfunction of the fire alarm system caused by surges in power and communication lines

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It is important to recognize and manage these external causes in advance to maintain the efficiency of firefighting equipment and to establish a foundation for rapid response in the event of an emergency. Therefore, to minimize the impact of external factors through regular inspections and preventive measures, it is necessary to have firefighting equipment certified as disaster safety certified.

A fire warning panel must be installed.