Bradleys Master Locksmiths are proud to announce the launch of their new and used safe website
Fire Resistant Safes(Follow this link to buy our Fire Resistant Safes online or contact us for more info)
Fire resistant safes are tested by how long they can keep their contents in good condition in the event of a fire. Higher quality fire safes and cabinets, are heated for periods of 60 to 240 minutes and then are dropped from a height of around 9mts and then cooled by water hose. This is to simulate a severe fire and the subsequent collapse of the building and rapid cooling when the fire brigade arrives to extinguish the fire. The contents are then checked for their condition and the safe is rated for what is considered to be the maximum time that the contents will remain in good condition. Many manufacturers now offer safes which are burglar resistant but also offer a small degree of fire protection and these may be suitable for home use, but businesses should be aware that important documents and computer media should be stored in the correct safe.
More than 110,000 building fires breakout in the UK each year. The loss of mortgage deeds, share certificates and other paper or computer media information are other items, which could be kept out of harms way in a safe. Statistics show that up to one third of businesses, which lose their stored information, go into bankruptcy within 2 years of the loss.
For the technically minded, the Time/temperature curve is 345 log to base 10 (8t + 1) +20 which basically means if the safe is put in a furnace, switched on and left for 60 mins, the max temperature reached in the furnace will be 840’c, in 120 mins it would reach 1000’c and in 240 mins – 1100’c
Some other facts are:
Paper damaged at 150 degrees c
Computer media damaged at 55 degrees c
In the 1800's Milner prodcued a range of safes which when heated, created a steam inside the safe which would help to keep any papers inside slightly damp. Because the temperature in which paper begins to chare is 212f Milners called the range Milners 212, Thief and Fire Resisting Safes. Although good in their day, any fire resistance offered by these safes over 100 years on would be virtually nil.