thong so vat lieu theo cac tieu chuanFull description
Full description
Full description
Tiêu chuẩn 7081 của Việt Nam về Quy hoạch khu du lịch
Tieu chuan PCCCFull description
thong so vat lieu theo cac tieu chuanFull description
Tiêu chuẩn 7081 của Việt Nam về Quy hoạch khu du lịch
TCVN 6486:1999 VIETNAM STANDARDS Liquid petroleum gas (LPG) – Pressured storage – Location, design, capacity and installation
1. Scope of application 1.1 This Standard stipulates the requirements for location, design, capacity and installation of fixed storage tanks of liquefied petroleum gas (hereinafter referred toas LPG) with water storage volume more than 150 liters which are used for storing commercial and industrial LPG. 1.2 This Standard shall not be applied for: - Transported storage tanks - Storage during the process of o f distillation, gas separation. - Cold storage 1.3 For storage tanks with capacity higher than 135m3, the requirements in this Standards shall be considered as guidelines only, and o ther related standards must be necessarily referred to. 2 Reference standards -
TCVN 6153: 1996 Pr essure tanks – Safety requirements in design and fabrication.
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TCVN 6154: 1996 Pr essure tanks – Safety requirements in design and fabrication– Testing methods
3 Terminology In this Standard, the following technical terms ar e used: 3.1 Supplier/manufacturer: means a person who fabricates or supplies equipment and services to carry out the requirements of the person who orders. 3.2 Cathode protection: The process which reduces or prevents the corrosion o f metalstructures when contacting with an electrolytic substance by applying the method of putting the electric direct current (DC) from such electrolytic substance onto the structure surface. working with LPG so that such system can bear the product pressure at the highest temperature during its operation. 3.4 Emergency stop valve: the valve which disconnects a system from the s econdsystem in case an emergency status occurs at one of the two systems. 3.5 Storage tank or pr essure tank: A pressure bearing tank without emergency pressure reducing equipment.
3.6 Pressure release valve: Valve used to protect a system when an over-pressure problem occurs in the system by way of automatically discharging a solvent out o f the system. 3.7 Emergency stop equipment: A system or equipment designed to stop a system safely in an emergency case. 3.8 Overflow quickly-closing valve: Valve disconnecting the flow when it exceeds allowable limit. 3.9 Safety distance: the smallest distance between objects or structures to ensure safety in cases of LPG leakage or when fire occurs. It will limit to th e maximum the danger, damage as well as stop them from spreading out. 4. General requirements 4.1 The use of storage tank shall be approved by the authorities. 4.2 Storage tank, system of storage tanks shall be designed, fabricated, installed and maintained including periodical inspecting and testing pursuant to TCVN 6153 ÷ 6156 and o ther current regulations in related technical standards. 5. Location of storage tank installation 5.1 The LPG storage tanks shall b e located in the open air, outside the buildings or enclosed construction works, not on the building roof or ba lcony. 5.2 The storage tanks shall not be placed under the works such as building eaves, bridges or electricity conduct lines in the air. 5.3 Once the LPG storage tanks are located in the areas where there are acce ss roads to hospitals, schools or trading centers, etc., surrounding the ar ea there shall be open-styled protection fence with minimum height of 1.8m and such fence shall be located 1.5m at min imum away from the storage tank. 5.4 The fence surrounding the tank area shall have at least 2 accesses (ways in and out) which are not located close to each other. Their minimum width shall be 1m at minimum and be open outwards. Automatic gate lock shall not be used.
