AnthonyB

Nitrogen, less moisture risk, plus compressors can't provide the pressure required for modern extinguishers so you'd need to be using cylinder air anyway and the cost difference isn't massive.

If it was just an inner room/access room then a Grade D smoke alarm to the access room and changing the lock to one that doesn't require a key from the inside would be the solution, but it sounds like an inner inner room situation - not usually permitted.

Sounds like they are treating the rented flats as HMO's because if treated as single private dwellings that are being let as oppose to owned the most they can require is a grade F battery operated smoke alarm in the flat lobby (and each floor landing if a duplex or triplex) and a carbon monoxide detector in each room with a solid fuelled appliance (if any) Flat front doors should be fire doors, but if not an HMO and just purpose built flats then enforcement of this is not easy and usually it's the landlord or management company for the common areas who has to try and get this achieved, usually via the ground lease conditions.

You could provide that type of coverage as an alternative to the mixed system set up above.

That's unusual, you normally get valve shutoff, but not fuel diversion. How old is the original building as basement fuel oil tanks with foam inlets are shouting pre-1960's office block. You've got more precautions than most generator set ups in buildings so I wouldn't be too concerned. Anthony Buck Alcumus HSE BAFE SP205 Third Party Accredited Fire Risk Assessors

Are you talking about a door from the building to the outside or in an outer wall fence to the street? Anthony Buck Alcumus HSE BAFE SP205 Third Party Accredited Fire Risk Assessors

It's not set in stone, but most providers use First Aid as a benchmark and put a three year expiry on, which as skills fade would be similar to first aid as you aren't regularly using your training isn't unreasonable. Your training regime must be suitable to the circumstances and risk and your fire risk assessor should be able to advise. A fire warden certificate should be transferable as the basic principles are always the same, however as specific procedures will differ between premises and organisations some additional instruction may be needed. Anthony Buck Alcumus HSE BAFE SP205 Third Party Accredited Fire Risk Assessors

Yes & possibly. Sounds like the old caretakers flat in a late 20th century building. A fire in the office block would have a major impact on the life safety of the flat. The flat as a minimum would need a self contained LD3 system to BS5839-6 plus some sounders from the main building system. There would not be an automatic need for main building detection inside the flat (cover to the stair landing outside the front door would do) but would have property protection benefits.

You really should have called the fire brigade at the time, not only for safety but because they would have taken out the mattress for you! Combustion by products include quite a lot of very nasty substances - anyone exposed should seek medical attention. Perhaps Social Services or a Charity could assist with the mattress issue.

Your fire extinguisher maintenance company can environmentally dispose of old fire extinguishers and issue a waste transfer note for your records - you can't just bin them (as someone found out when they blew up a bin lorry this way)

They are notices, not signs, so don't have to use the colours and symbols detailed in the Safety Signs Regulations, although it's best practice. You can produce your own or buy ex stock from a supplier No signs have to be photoluminescent as the normal & emergency lighting should be sufficient to permit legibility of key signs & equipment - the only time they would have to be is if a photoluminescent way guidance and information system is being installed instead of emergency lighting. Purchased signage can be normal self adhesive vinyl or rigid plastic and do not have to glow in the dark

Is this an office building or residential? Detection will need to be interlinked and depending on the premises will need to form part of a system complying with BS5839-1 including a control panel, manual call points, detectors and sounders. You need a Fire Risk Assessment prior to installing to advise what exactly you need as otherwise you risk: - installing something excessive, or - installing something inadequate, or - something completely useless

If you are discharge testing you will need to use new powder unless you have a proper closed circuit recovery system such as the Getz Superkan or Vacufill as the powder will get contaminated and absorb moisture. Virtually no one in the trade refills powder now as it's just not cost effective anymore

Depends on how important aesthetics are to the client - if they aren't bothered then just surface mount with metal clips.

That's cheap for all three services...

You are meant to internally examine every 5 years with a stored pressure after the discharge test as part of an Extended Service, but hardly anyone bothers as it's not cost effective. Cartridge powders are opened up annually, but you don't have to remove the powder each year, just agitate and check the condition.

Yes, as above. Back in the day when powder extinguishers were routinely refilled and discharge tested they made powder blow out bags for this purpose, but a home made one and inverted discharge will do what you need. What are you reusing the powder for? If it's recharging a different extinguisher you need to be sure you aren't going to mix incompatible powders (e.g. BC powder in an ABC powder extinguisher or vice versa) or use and inferior grade that invalidates the fire rating (e.g. 40% MAP powder in an extinguisher manufactured with 70% MAP powder). Any powder extinguisher being recharged needs a full strip down in order to clean out the valve and spindle to ensure it seats fully or it will just slowly leak off after re-gassing.

In commercial premises there should be an appropriate electrical fire alarm system complying with BS5839-1 installed unless it is so small alternatives like shouting or a manual gong can be heard throughout the premises. Being over three floors an electrical system would be required. As human senses are generally more sensitive than smoke detectors the minimum standard for a fire alarm system is one consisting of manual call points (break glass units) and electronic sounders powered from a central control & indicating panel (A Category 'M' system). This is the legal minimum and is sufficient for most single occupancy premises. Automatic detection is only required if there is a risk of a fire growing undetected long enough so as to prejudice escape - so all sleeping risk premises will require it, most multi occupancies and others depending on layout and risk. This detection must be part of the main system and not separate (e..g by using domestic smoke alarms). A system with detection for life safety is categorised L1 to L5 depending on the location of the devices. A fire risk assessment by a competent person would indicate your exact requirements, but in general you don't require much detection, just the manual system. Should you wish to protect property, this is not covered by fire safety legislation & is a business decision and would involve far more extensive detection coverage and the provision of remote monitoring of the system, far more costly of course!

Yes, water mist would suit although they don't have an official Class B rating due to the low performance per unit of agent not meeting EN3 minimums, although with kerosine/paraffin this isn't as big an issue as with other fuels. Foam spray would also suit

Yes, Britannia's P50 range is Kevlar. They don't do a water mist because their ordinary water and foam extinguishers are safe for electrical fires up to 1000V in accordance with EN3

A lift car does not need a fire extinguisher. Even London Underground, who were probably the only people to routinely fit them, took theirs out years ago. A lift motor room would usually have a 2 kilo CO2 (unless there was one already outside the motor room door). If you don't have a lift motor room because you have the integrated shaft based lift machines you don't need anything!

Buy some cheap disposable elasticated shower caps and put them over the detectors for the duration of the party and then remove. No need to mess around with the actual detectors risking damage. That's what is done with detectors in commercial buildings during dusty works

It's a common question - "Where in law it says we have to do X?" The answer is, that beyond carrying out a fire risk assessment and the specific provisions for fireman's switches, it doesn't. It merely sets out a range of broad functional provisions and how you achieve them is up to you and your FRA. However, you have to be able to demonstrate that what you do is adequate - to help you do this there are various benchmarks and guidance documents such as British Standards, official government and industry guidance documents, etc. You don't have to follow them to the letter (I don't always) but if you are going to deviate from them you need to be able to demonstrate that what you do still adequately meets the functional requirements of the legislation as oppose to following the guides/benchmarks (which I do) Defects in fire doors have killed in modern times and an adequate system of maintenance is key - the security guard or premises' managers 'check' on a fire door during the daily/weekly walkaround often misses aspects that are hazardous and a through examination (as in the BS) would pick up - so often 'checked' doors have damaged/missing seals and strips, not shutting flush in frame, sticking open, dropped hinges, damage affecting integrity, etc A good risk assessor will only tell you what you must do to meet functional standards and if that means putting your hand in your pocket, so be it. Admittedly there are some that don't really risk assess and require things for the sake of it or are far beyond what you need to do, hence the question "where does the law say...."

I suggest you ask this technical question on www.firealarmengineers.com/forum

Having looked at a similar unit to let to give me a feel for the size a FRA may find that you need as a minimum what is termed a Category M fire alarm (call points, sounders and control panel) particularly if the unit isn't open plan - whilst an electrical fire alarm system isn't always required you have to consider is a shout would realistically be heard clearly throughout the premises. Similarly whilst detectors aren't required in many normal premises you have to consider if the layout, usage and staffing of your unit is such that a fire could grow undetected long enough to compromise escape. As you have the system already in situ it would not be a major expense to get it back in working order, the most likely expense would be new batteries and the cost of the fire alarm engineer powering it up, testing all the devices and issuing your test certificate. The only big expense would be if the panel is defunct or your current layout requires additional sounders or detectors. If you do use the system you will need to test it weekly (the engineer can show you how) and get it serviced twice a year