Design protection methods

If so, can we prevent no flow (or protect against the consequences) by changing the design or method of operation ... 

Where appropriate, designs should facilitate the application of adequate corrosion-protection systems that can be readily maintained. This can be achieved by attention to the geometry of the initial and any retrofitted design and methods of construction, and by making provision for good inspectability and accessibility. 

A passive fire protection system requires no action to occur for it to function per its design intent. Examples of passive fire protection methods are fireproofing, spill containment, and physical separation of units and buildings. 

As technology advances, the need for improved performance from materials increases. There is also a continuing economic pressure to minimise costs, which will become increasingly difficult as resources become depleted. Thus, research is aiming at more efficient corrosion protection methods such as improved formulations for paints and corrosion inhibitors, improved metal alloys, better design, and the use of novel materials such as ceramics and plastics. 

With this handbook, scientists or engineers requiring hazardous operation protection can select, modify, or design a suppressive shield for their required use. This handbook is available through DDC or National Technical Information Service and provides an alternative protective method previously not available to provide increased protection to personnel Involved in hazardous operations. 

The hazard classifications and methods of protection of various materials identified in this Guideline may not be consistent with the classifications, protection methods or mitigation means found in the applicable building construction or fire codes. Compliance with building codes will not always ensure an adequate warehouse design. They may, in fact, provide only minimum protection. The appropriate level of protection beyond that required by code or regulation is a business decision. 

The choice between these possibilities is usually based upon economic considerations, but in many cases aspects such as appearance, environment and safety must also be taken care of Two or more of the five principles are commonly used at the same time. It is important to decide upon corrosion prevention at the design stage. In addition to the sections in the present chapter, reference is made to recommended protection methods under the treatment of various corrosion forms in Chapter 7. 

The engineering factor relates to the plant layout, its location, the equipment used, and its engineering standards. Special attention should be paid to the design stage at which safety and reliability rely upon the application of various codes of practice and standards. This is a basis for prevention of the fire explosions hazards. Within this factor, the philosophy of safety is based on the acceptance of the possibility of fire and explosion and provision of a method for protecting personnel and equipment from its consequences (protection method). 

The appendix can be used to design a method of protection for employees from cave-ins when (1) sloping or benching, (2) timber shoring, or (3) aluminum hydraulic shoring, is used. 

Accidental activation of some controls can lead to serious consequences. There are several methods for protecting controls from accidental activation include recessing, location, orientation, covering, locking, operational sequences, and resistance. A desirable design may include a combination of methods. The appUcation and potential consequences of accidental activation will affect the methods selected and used. If accidental activation leaves a system in a safe condition, rigorous protective methods are not as important. If accidental activation can produce a serious accident or injury, prevention of accidental activation is critical. 

Maintenance of protection for controls is also an important consideration. A failure in a protective device may increase the likelihood of accidental activation. It must undergo repair or replacement quickly to retain the value of the protective device. Protective methods should not violate other design principles directed at minimizing errors. Figure 33-5 illustrates several of these methods. 

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