Additional Information

  • LPG fumes are colorless and odorless.
    In order to identify a LPG gas leak with no equipment, a strong and unpleasant smelling substance is added to the gas at the refinery.  This allows for the identification of relatively small leaks.
     
    The substance is known as ethyl-mercaptan and is added  to the LPG in very small quantities – P.P.M – 50 – 250 as the specific gravity of the mercaptan is higher and therefor it is heavier that the LPG.
    1. Ensure that no naked flames or sparks can be produced in the area.
      Turn of electricity to the area
      Turn off or extinguish open flames
      Move people out of the area
      Disconnect telephones – regular and wireless – pagers and walkie-talkies
       
    2. Turn off the gas supply, as close as possible to the leak
      The appliances gas tap
      The housing units main gas tap – can be found after the gas meter
      The building's main gas tap
      The reserve tap connected to the gas cylinder station (Ramp)
      Portable gas cylinder  tap or gas storage tank tap.

      Notes:

      Both stages should be done at the same time.  In the event that only one person is present, care must be taken to perform actions in the aforementioned order:  If there is an area or neighborhood gas storage tank then additional storage tanks may be connected to the network.  In this case, all tank taps must be closed.  Additionally, the amount of gas left in such a system is relatively large and so the tap for the section with the leak must be located and closed.

      If the tap cannot be located, then the copper piping can be pinched until no more gas flows.

       
    3. Open doors and windows in the affected area.  Take care not to cause a spark when opening a door or a window as these are areas where explosives concentrations of gas can occur.

       
    4. Low areas:
       The gas will not dissipate on its own.  You need to encourage a flow of air into the area.
      Due to the danger of suffocation, entry into a low area should only be with the appropriate equipment and when supervised by another person who remains outside of the area.

       
    5. Open Spaces, note the direction of the wind.  The most explosive area will in a triangular area with its apex at the source of the leak.
       
  • When working with gas there are a number of situations of especially high risk.
     

    Changing portable gas cylinders:
    In general, a static situation is not dangerous.
    The danger is created during connection or disconnection, an insufficiently tightened connection to the cylinder, a faulty tap left open – all these can cause a gas leak.
    Also, the cylinder connection pipes (the "coil") can crack or split and cause a leak when it's hot and they expand too much.  If the leak isn't located, it could cause a buildup over time.

    Overfilling gas cylinders:
    If the cylinder has been filled to over its allowed limit, the excess liquid could spread,  under the influence of temperature changes, and cause the excess to be expelled through the safety valve (or another dangerous situation where liquid gas enters the supply system).

    Filling a central gas tank from cylinders:
    In this situation, large quantities of gas are present.  One of the tanks is on the delivery vehicle, above ground and exposed.  During filling, a high pressure pump and flexible piping are used.
    When the flexible pipe is disconnected, gas is expelled into the air and is used as an indication to prevent over filling.
    Once the filling process is completed, the tanks filling valve may not close completely, causing a leak.
    Close to the tank there could also be sources of fire such as evaporators or the consumer's gas burners.

    Replacement of an underground gas tank:
    This method of filling a gas tank is extremely complicated and lack of care could easily cause damages to parts and a leak of substantial quantities of gas.

     

  • According to regulations your home must undergo a period inspection  of its gas system as follows:

    Once every 5 years, a complete inspection of the entire system
    Once a year, or once every 5 years for water heaters for consumption and heating, according to the type of device in use.
    Whenever a change is made to the gas system.
    When the gas supplier is changed.

    If no inspection has been done in your home or even if you are not sure, please contact your Pazgas representative in order to arrange for an inspection.
  • User mistakes – when using a gas stove the flame can go out because of a draught or a pan overflowing.  If you fail to close the burner's gas tap – gas will continue to flow from the burner.
    An additional source of danger is leaving a flame unattended.

    Failure to replace the rubber tubing – over time, the rubber hose wears out and could crack or split.  An unauthorized rubber hose could also be damaged by the gas itself, wear out faster and cause a gas leak.

    Exposure of the rubber hose to a heat source – when, for example, the rubber hose is placed under a built in stove.  This will cause the hose to harden and the development of cracks.

     
    • No fire or flame is permitted next to a gas reservoir.
    • The reservoir area must be kept clean and free of combustible items and substances.
    • Portable gas cylinders must be installed on a stable and well aired surface outside of the home and above the surrounding ground level.
    • Gas cylinders and associated accessories and parts will be protected from the environment.
    • Customers using a central gas supply will ensure the presence, the location and how to use the home's central gas tap.
    • If the gas system remains unused for a lengthy period of time, it is recommended that  the home's central gas tap be closed – when using a central gas system – or the gas cylinder taps for a customer with a separate gas reservoir.


       
    • During the free, 5 year inspection of the system's safety and its adherence to regulations, the location and accessibility of the kitchen's safety tap will also be checked.

      .Regulations concerning cutting off gas supplies to a customer:
       
    1. Disconnection due to non-payment
    • If the customer has not paid their bill by the due date, a warning letter will be sent.
    • If, 7 days after the warning letter's dispatch, the debt has not been paid, the customer will be contacted by telephone and a verbal warning given prior to disconnection.
    • If, after 4 days, the debt has not been paid, the customer's gas supply may be disconnected.
    • All actions taken leading up to the disconnection of the customers gas supply must be recovered in the customer's file.

       
    1. Disconnection of gas as the result of a  faulty system

      Repairs when the fault requires immediate disconnection:
        before disconnection, an explanation must be given to the customer regarding the fault and the requirement to disconnect the gas supply immediately.  The client should be offered a quote, in writing, for the immediate repair of the system.  At this stage, the client will be able to ask for a price quote from other sources providing that they meet the standard requirements.  In the event that the customer decides to repair the system using the company, the technician will assist in setting the date for the repair of the fault.


      Repairs when the fault does not require immediate disconnection:  The customer should be allowed to repair fault with 21 days.  At this time the customer must be given a price quote, in writing, for the repair and must be allowed to approach other sources to have the fault repaired, providing that they meet the standard requirements.