LPG station construction stages:

1. Tasks to be completed by the investor:

• get the opinion of the Municipal Council as to whether or not there are any obstacles to the construction of a station on a given plot of land, that is, whether the area is designated for trade, service or production facilities or to service road traffic;
• receive a master map (an original usually large-scale map which is made directly from surveys
  and from which other maps are derived) with a scale of 1:500 or 1:1,000 with information about land and buildings and if the map is not current the investor should have it updated by a land surveyor;
• receive original documents from the land register.

2. Agree with the designer of the station the location of the station's facilities. In order to do that the following solutions should be considered and selected as appropriate:

LPG station foundations:

1. INTRODUCTION
   
2. FOUNDATION PLATE
   
3. STATION FENCING
4. EARTH INSTALLATION
5. PUMP AND DISPENSER POWER SUPPLY SYSTEM
   

The purpose of this guide is to provide the investor with the basic information needed to correctly and comprehensively prepare a site for the installation of LPG station tanks, pump and dispenser so that equipment can be set up, started and commissioned without any problems.

The first thing to do before construction work is started is to obtain all the permits required by the local authorities and then planning permission.

The foundation plate, supports made of clinker for tanks, earth installation and power supply cables for the station in cable culverts should be prepared so that the station can be installed and connected without the need for any additional work by the company installing the station.

All work to be carried out before the installation of equipment is described in detail in these specifications and should be carried out exactly as specified in the guidelines and drawings.

NOTE:

The requirements of items 2 - 5 should be followed. Failure to do so may result in the investor being charged with the costs of additional work.

The foundation plate with supports for tanks should be made exactly as specified in the drawings. Two plate layers should be poured out on a hardened and leveled surface. The thickness of the individual layers and the type of material should be as specified in the enclosed drawings. The tanks will installed on supports made from clinker with Ø 16 holes drilled for HILTI anchor bolts. It is recommended to use paving blocks around the foundation plate.

The station should be protected with fencing with a height of 1.8 m ( 2 m ), made of non-flammable materials such as wire mesh  hung on metal posts embedded in concrete in the ground. The fencing should provide natural ventilation and enable vehicles to enter, turn round and leave the station area. The mesh should be located at least 1 m from the tanks .

Fencing is not required if the station is part of a fuel station or another facility with 24 hour attendance.

The trench for the earth installation should be dug as shown in the drawing. It should be at least 70 cm deep and should be dug along the outline of the tanks and dispenser at a distance of between 0.5 and 1 m. 30x4 hoops should be placed in the trench with 5 earth connections to the earth installation of the dispenser and tanks. The investor has also to fill in the trench and level the area and also to carry out earth installation measurements (report) and prepare earth installation documentation. If the station is to be fenced with wire-mesh two earth electrodes should be connected to opposite fence posts.

The power supply system should be constructed as shown in the enclosed wiring system diagram. The switching station should be built outside the explosion hazard area unless the Ex explosion-proof version is used. The cables from the switching station to the connection point of the pump should go through a concrete slab. Cables should go through a Ø75 PVC pipe. Cable outlets in the service room to the switching station should be in plastic channels. Each cable must be clearly marked.

Specification of electrical cables:

• pump power supply (380V) - NYY-J 4 x 2.5 mm²  or  YbKSYżo 4 x 2,5 mm² cable;
• STOP and dispenser illumination switch (220V) -  YbKSYżo 5 x 1.5 mm² cable;
• power supply for electronic calculator unit for controlling the operation of the pump (220V) -  YbKSYżo 5 x 1,5 mm² cable;
• communications with a cash register (if planned) - YbStYekż 8 x 0.75 mm² or LIYCYżo 8 x 0.75 mm² cable;

Note:

The user has to carry out the following electric measurements:

• cable insulation resistance
  
• check the earth leakage circuit breaker

and prepare relevant reports.

Yellow tape with warning about cables should be placed twenty centimeters above cable culverts.