This discussion is locked.
You cannot post a reply to this discussion. If you have a question start a new discussion

One Single Action Only. 465.3.

Regarding "Emergency Switching Off,"  please provide examples of "One single action only." What is "One single action only?" What types of devices are suitable for such use allowing one single action only? 465.3.

Parents
  • the installation of a Firefighters' emergency switch has been discussed.

    BS 7671 calls it a "Firefighter's switch" not a Firefighters' emergency switch - it's in a section of its own (537.4) quite separate from the requirements for emergency switching off (537.3.3) and is normally mounted at about 2.75m above ground level (i.e. beyond BS 7671's 2.5m idea of arm's reach). It seems to me that it would be "imaginative" to say it was intended either for use by members of the public, or as a means of emergency switching in the conventional sense.

    Ref below: Andy, there is a bang and a flash. Would you just run away or quickly investigate? Perhaps operate the fire alarm by a call point. Perhaps use a fire extinguisher. Perhaps operate an emergency stop button to limit the material that may be loaded onto a fire.

    Me - I'd run. If there was one of whatever caused the explosion in that pile of rubbish, there may well be more - and if anything more likely to explode now they're exposed to shock and heat. Hit a call point on the way out if I happened to be passing one anyway for sure - to help others get out - but otherwise better let the place burn to the ground than risk even one life unnecessarily. Sure I'd look back as soon as I felt I was at a safe distance, but I spent too much of a mis-spent youth playing with matches and open fires not to realize that even a simple fire in a confined space can easily go 'whoof' when you least expect it to.

      - Andy.

  • BS 7671 calls it a "Firefighter's switch" not a Firefighters' emergency switch - it's in a section of its own (537.4) quite separate from the requirements for emergency switching off (537.3.3)

    I already covered that ... the requirements for a Firefighter's Switch in BS 7671 are related only to HV signs.

    The requirements in the 'Blue Book' for the Service Station's Emergency Switching is what GTB is highlighting. So, yes it uses the term 'firefighrer' but in actual fact it's an Emergency Switching [system] as discussed in BS 7671.

Reply
  • BS 7671 calls it a "Firefighter's switch" not a Firefighters' emergency switch - it's in a section of its own (537.4) quite separate from the requirements for emergency switching off (537.3.3)

    I already covered that ... the requirements for a Firefighter's Switch in BS 7671 are related only to HV signs.

    The requirements in the 'Blue Book' for the Service Station's Emergency Switching is what GTB is highlighting. So, yes it uses the term 'firefighrer' but in actual fact it's an Emergency Switching [system] as discussed in BS 7671.

Children
No Data