Welcome Guest! The IOSH forums are a free resource to both members and non-members. Login or register to use them

Postings made by forum users are personal opinions. IOSH is not responsible for the content or accuracy of any of the information contained in forum postings. Please carefully consider any advice you receive.

Notification

Icon
Error

Options
Go to last post Go to first unread
Admin  
#1 Posted : 18 August 2009 17:24:00(UTC)
Rank: Guest
Admin

Posted By Kai Steffensen Good Afternoon, I am currently in the process of reviewing our Fire Risk Assessments, for numerous warehouses on our site and while auditing one of the buildings I wondered if there was any "specific legislation" for the storing of articles near to composite panels?........And if so where can I find it? Obviously due to insurance purposes and general fire safety management my normal remit is that under no circumstance, any material is stored within 10 meters of insulated composite panels. The panels within the construction of the building are type two and have a resistance of 30 minutes, however the charging bay for the electric MHE that is used within the facility is just outside of my normal remit @ 9.5m I have scoured through the "Approved Document B" Building Regs 2000 (fire safety) and obviously The Regulatory Reform (fire Safety order) 2005 and all I can find reference to, are articles i.e. electric cables, heating ducts, extraction systems that pass through composite panels, but cannot find any information regarding articles being stored within close proximity. The area in question has more than adequate fire provisions and preventative measures in place that has reduced the risk of fire so far as reasonably practical, and currently we have no issues with our insurers, however I cannot dismiss the idea that I may be overlooking something. I do not wish to move the charging equipment to facilitate the 0.5m difference, however if required under legislation, then I have no choice. Am I being over cautious? Can anyone advise?? Best Regards Kai
Admin  
#2 Posted : 18 August 2009 17:29:00(UTC)
Rank: Guest
Admin

Posted By Stuff4blokes Kai, do you forsee a fire involving a charger unit in your premises growing to such a size that it would enter the 9.5m distant foam panelling before the site is evacuated? If yes, suggest that all fuel is removed between the charger and panelling. If no, rest easily.
Admin  
#3 Posted : 18 August 2009 20:07:00(UTC)
Rank: Guest
Admin

Posted By D. Hilton Kai, I will assume that the panel in question is forming an external barrier and by Type 2 you are referring to Grade ext B as per loss prevention standard - LPS 1181 part 1 ? If so, test crib heat flux exposures of 50 kW/m2 are used during the 30 minute certification process. Considering that the predominant fuel source from an electric or battery powered vehicle is likely to be the rubber wheels of the vehicle and based on the combustion of a typical 195/60 R15 tyre of 0.75 m2 it is anticipated that the Heat flux would be in the order of 28 kW/m2 and so it is unlikely that the scenario and distance described would result in the combustion or significant degradation of the sandwich panel. However, this does not discount the ignition and combustion of other nearby fuel sources generating HF in excess of the 50 kW/m2 and of course the properties and distance of these other fuel sources from the panel surface must be considered. Regards D
Admin  
#4 Posted : 18 August 2009 20:09:00(UTC)
Rank: Guest
Admin

Posted By D. Hilton Of course the insurance Co do not have any interest in the evacuation or life safety aspect but are more concerned with property loss
Admin  
#5 Posted : 18 August 2009 20:17:00(UTC)
Rank: Guest
Admin

Posted By D. Hilton As you have no doubt realised or knew prior to posting, there is no specific legislation dealing with your query.
Admin  
#6 Posted : 19 August 2009 09:01:00(UTC)
Rank: Guest
Admin

Posted By Kai Steffensen Thanks for all of your input guys, As first thought, I didn't believe that any such legislation was in place. All operatives working within the confines of the warehouse have at least 5 directions of travel to reach the open air with travel limitations of of no more than 45 meters. I have estimated that every employee can reach a point of safety within one minute and can be outside of the building well within 2-3 minutes. The point in question was made by my senior manager whom requested that the charging units be moved closer to the composite panels to enable better use of the space, I had advised that from an insurance view point this would be unacceptable, however I wanted to check the relevant legislation (if any) before I committed to a final answer. D.......MHE is present when batteries are changed however MHE is not stored/ parked within the bay itself for any period of time. You are probably correct in the fact that the rubber tyres are a good source of fuel should a piece of MHE be involved in a fire, however we cannot disregard the internal circuits, the casing of the charging unit itself or the external wires and plastic casing of the plug sockets and emergency shut off switches as a closer source of fuel. No doubt most of you are aware that batteries also give off hydrogen gas which under the right conditions may ignite if a spark is caused. All of the fixed wiring within the building is tested every 5 years and all charging units are PAT tested annually due to their usage, however would moving the units closer to the composite panels increase the risk of fire? Polystyrene insulation is notorious for being extremely quick to burn should the core of the panel be exposed, but if there is no legislation which dictates distance limitations of electrical equipment to the wall itself, would it be safe to move the charging units closer to enable better use of the available space?
Users browsing this topic
Guest
You cannot post new topics in this forum.
You cannot reply to topics in this forum.
You cannot delete your posts in this forum.
You cannot edit your posts in this forum.
You cannot create polls in this forum.
You cannot vote in polls in this forum.