Safety, Security & Environment Division

SAFETY, SECURITY & ENVIRONMENT DIVISION.

Safety Guidelines for Command & Control Rooms

General
All rooms shall include a 3 kg powder-type fire extinguisher.
All rooms shall include wall-mounted fire-resistant shelves in accordance with SI 1001 standard requirements.
All doors shall be made of material having 1.5-hours fire-resistance rating.
All rooms containing gas-based fire-extinguishing systems shall be sealed against escaping gas whenever the fire retardant is released (there is a need for integration between the systems, setting state of ventilation duct fire-shelves).
There is a need to install a fire-extinguishing cabinet and 2” fire valve at the C&C Room entrance. All equipment shall comply with IRC specifications.
There is a need to install a blower that would ensure 8 air turnovers per hour in each of the rooms protected by a gas-based fire extinguishing system.
The entrance door to all rooms which are protected by automatic gas-based fire extinguishing systems shall contain a sign stating “In the event of fire-extinguishing system activation, entry is only permitted after 15 minutes of ventilation or using internal/closed breathing systems”.
Additional fields such as height differences, building materials, electricity, lighting, railings, area development, fire-resistant doors, fire separations, passage of infrastructures through fire-resistant walls, system integration table, water and pressure capacities, fire truck accessibility, list of permits issued by various consultants and laboratories shall be handled by the Safety Adviser.
There is a need to install emergency lighting in all rooms.

Transformer Rooms
All IEC transformer rooms shall comply with all IEC requirements and remain under their responsibility. Train-mounted transformer rooms shall meet the following conditions:
All transformers are to be installed in accordance with manufacturer instructions and subject to ART. 450 – NFPA 70 regulations.
All transformers shall be installed inside structures with a fire-resistance rating of no less than 3 hours.
All transformer room doors shall open to the outside, shall bear a 1212 standards mark with fire-resistance rating of 3/3/0.5.
All transformer room ventilation ducts shall have a direct connection to a fresh air source from the outside. All apertures shall be positioned as far away as possible from all other doors and windows of the structure, from escape routes (stairs rising to the platform) or from combustible materials approved by the IRC. The number of apertures, their surface area and position shall comply with manufacturer requirements for the purpose of ensuring proper ventilation and cooling of the transformer.
The net size of apertures shall be calculated by reducing the blockage surfaces of the grilles, frames, etc. All apertures shall be protected by grilles.
Transformer rooms shall not serve as a passage for any systems which do not required by the room itself.
The safety layout in general, and fire-extinguishing systems in particular, shall conform with Chief Fire Inspector Guideline 504 (based on NFPA 15) for internal transformer rooms.

Emergency Generators
Generators are required for powering of vital systems installed within the building: lighting of stairwells, passages and corridors, lighting and ventilation of Floor Protected Spaces (FPS), smoke exhaust and ventilation systems, elevator ventilation, elevator operation, public addressing and warning systems, activation of electric fire-extinguishing pumps (if applicable), feeding of power to firefighters' control panel and emergency control panel (fire detection system: public addressing, access control, etc.). Feeding of additional systems – as per developer (IRC) or Safety Adviser instructions.
In the event of a power interruptions from the national grid, the generator shall automatically start up within no more than 10 seconds.
Generator capacities shall enable start-up and parallel operation of all emergency systems that are fed by it for no less than 8 hours.
All power feed used by emergency systems which are required to function during fires shall be protected against fire - all cables and connectors shall be protected by fire-proof sleeve or shall be of fire-resistant type.
The generator shall be installed inside a structure encased in envelope with a fire-resistant rating of no less than 2 hours.
All generator room doors shall open to the outside. All doors installed on internal walls shall have a fire-resistance rating of 1.5/1.5/0.5.
The width of all passages leading between the generator and other equipment or other sections of the structure shall be no less than 1 meter wide.
In order to ensure proper functioning of the generator, the room shall be ventilated from the outside by fresh air as per manufacturer instructions.
All gasses which are emitted by the combustion of fuel shall be released directly to the outside of the building through the generator's exhaust pipe. The pipe shall be protected against accidental contact up to a height of no less than 2.0 meters.
The room must consist of one permanent lighting fixture and no less than two power sockets. In addition, there is a need to install emergency lighting which is not fed by the battery which is used for generator start-up.
Storage of Generator Fuel – There is a need to construct a reservoir pool with a capacity of 110% the volume of the fuel container, with an automatic flow cut-off mechanism in the event of leakage. The room structure shall not allow the leakage of fluids to the outside of the room.
There is a need to install a fire detection system controlled gate valve on the fuel supply pipes for stopping of fuel flow in the event of a fire alarm inside the room.
There is a need to install circuit breakers for emergency generator shutdown in the firefighters' control station located near the main entrance and near the generator room in an easily accessible spot as determined by the Security Adviser.
The powder-based fire-extinguishing system installed in the generator room shall meet all ISI 5356 standard requirements and must be approved by a certified laboratory.

The Battery Room
The dispersal of smoke and ventilation of the room shall be forced. The blower shall have sufficient capacity to control 6 air circulations per hour. The blower suction opening shall be positioned in the outer wall as far as possible from the room's fresh air intake opening. Measures must be taken to prevent the occurrence of a short circuit between the openings. The blower shall be connected to a super critical power field.

The blower may be activated as follows:

4.1.1.Manually, by pressing a push-button which is to be installed outside the room entrance.

4.1.2.Automatically upon detection of smoke, using a smoke detector which is to be installed inside the room.

4.1.3.Automatically upon detection of hydrogen, using a hydrogen detector which is to be installed inside the room.

4.2. In the event of the batteries being of “sealed” type, smoke may be dispersed using an automatic smoke detector activated window which is to be installed on the outside wall of the room. The window's dimensions shall be no less than 2% of the room's total surface area.

In order to ventilate the room using sealed batteries there is a need to construct a ventilation outlet at the highest point in the room.

4.3.The Battery Room's walls, floor and ceiling shall have a fire-resistance rating of no less than 2 hours.

4.4.All doors shall shall have a fire-resistance rating of no less than 1.5 hours.

4.5.All doors and windows require installation of a static electricity discharge point.

4.6.All electrical gear required inside the battery room shall be ExP explosion proof.

4.7.All power switches shall be installed on the outside of the room.

4.8.There is a need to install a preparation for installation of a washbasin + spray device for washing of eyes.

4.9.All sewage pipes must undergo separation.

4.10.The room floor and walls must be resistant to acid.

7/12/11