What is a safe?

The operator is an underground room or a cover used as an access and checkpoint for public services. These rooms usually attach gas or water or electrical switching equipment and can be completely or partially buried. Depending on their size, the safes are in different ways, including the arrangement of the manhole and the ladder or the removable eyelids. They are usually made of prefabricated concrete, although glass fiber or steel varieties are quite common. Public service operations are available in a wide range of sizes and patterns and often include integral functions such as cable tanks and access to knockouts. 6 Most sources of service equipment, including gas, water, electric and telecommunications line, are directed underground that represents a problem in this respect. Installing the vault of the utility benefit at the central location will solve this problem and create Easy for access, cleaning and convenient placement in group valves and developsa girl. These safes are usually simple square or rectangular boxes buried in the ground to which tubes and cables are routed. These boxes are usually large enough to conceive all lines and their associated equipment, while allowing the staff to stand or move there.

usually designed from prefabrication concrete, the storage room is either completely buried or with only a small part of the walls protruding from the ground. Access is achieved through a spraction and ladder or a removable grate or lid. Some safes are also made of steel or plastic composites, although they tend to be less robust and more inclined to "hover" due to hydraulic forces by storage of groundwater. The storage storage size depends on the number of rows that are designed to adapt to common size, including 3 x 3x 3 feet (1 x 1 x 1 meters), 4 x 6 x 8Stop (1.2 x 1.8 x 2.4 meters) and larger 8 x 12 x 8 feet (2.4 x 3.6 x 2.4 meters).

The largest designs of commercial safes are designed outside the place and installed as a completed unit. During the construction, it is common practice to include a number of integral elements that include cable or tubular tanks, luminaires and knockouts. The latter are grouped around the walls of the vault and consist of circular rings of thin cast material that allow the center disk to be eliminated to allow the cable or pipe input. All proposals of utility services, especially larger examples, are considered to be a dangerous environment due to their closed nature; Service staff should always protect against the accumulation of carbon monoxide and fuel gas.