Page 49 - igem-g-4 edition 2
P. 49

IGEM/G/4 Edition 2
             work
             In relation to a gas fitting, any of the following activities carried out by any person, whether
             an employee or not:
               installing a fitting
               maintaining, servicing, permanently adjusting, repairing, altering or renewing a fitting or
                purging it of air or gas
               changing the position of a fitting when it is not readily removable
               removing a fitting.

             working flame burners
             Working flame burners (oxy/gas or air/oxy/gas) typically used for glass working, brazing rigs,
             flame cutting and metal hardening.

             zener barrier
             A number of zener diodes, resistors and  fuses (depending upon manufacturer and
             specification) which operate by limiting both the applied voltage and current. For correct
             operation, they require a high integrity earth connection.


































































                                                           45
                     ©IGEM, IGEM House, High Street, Kegworth, Derbyshire, DE74 2DA. Website: www.igem.org.uk
   44   45   46   47   48   49