GB 7956.12-2015 English PDF

GB 7956.12-2015: Fire fighting vehicles -- Part 12: Aerial firefighting vehicle
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GB 7956.12-2015
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 13.220.10
C 84
Fire Fighting Vehicles – Part 12: Aerial Fire Fighting Vehicle
ISSUED ON: OCTOBER 09, 2015
IMPLEMENTED ON: JANUARY 01, 2016
Issued by: General Administration of Quality Supervision, Inspection and
Quarantine of PRC;
Standardization Administration of PRC.
Table of Contents
Foreword ... 3
1 Scope... 4
2 Normative References ... 4
3 Terms and Definitions ... 4
4 Technical Requirements ... 8
4.1 Basic Requirements ...8
4.2 Complete Vehicle Requirements ...8
4.3 Chassis Remanufacture Requirements ... 15
4.4 Special Device Requirements ... 15
4.5 Fire-fighting Hydraulic System ... 22
4.6 Instrument and Apparatus ... 27
4.7 Arrangement, Fixation and Configuration of Apparatus ... 27
4.8 Alarm Lights ... 28
4.9 Documents, Tools and Vulnerable Parts along with the Vehicle ... 28
5 Test Method ... 29
5.1 Test with Basic Requirements ... 29
5.2 Test for the Complete Vehicle ... 29
5.3 Chassis Remanufacture Test ... 36
5.4 Test for Special Devices ... 37
5.5 Test for Fire Fighting Hydraulic System ... 43
5.6 Test for Apparatus and Instruments ... 47
5.7 Test for Arrangement and Fixation of the Equipment ... 48
5.8 Test for Warning Lights ... 48
5.9 Inspection on the Documents, Tools and Vulnerable Parts along with the Vehicle .. 48
6 Inspection Rules ... 48
6.1 Inspection Classification ... 48
6.2 Judgement Rules ... 49
7 Marking, Packaging, Transport and Storage ... 51
7.1 Marking ... 51
7.2 Packaging ... 51
7.3 Transport ... 52
7.4 Storage ... 52
Fire Fighting Vehicles - Part 12: Aerial Fire Fighting Vehicle
1 Scope
This part of GB 7956 specifies the terms and definitions, technical requirements, test methods,
inspection rules as well as marking, packaging, transport and storage of aerial fire fighting
vehicles.
This part is applicable to various aerial fire fighting vehicles.
2 Normative References
The following referenced documents are indispensable for the application of this document. For
dated reference, only the edition cited applies. For undated references, the latest edition of the
referenced document (including any amendments) applies.
GB/T 3181 Colour Standard for Paint Film
GB 4351.1-2005 Portable Fire Extinguishers - Part 1: Performance and Construction
GB 6245 Fire Pumps
GB 7956.1-2014 Fire Fighting Vehicles - Part 1: General Technical Specifications
GB 15052-2010 Cranes - Safety Signs and Hazard Pictorials - General Principles
GB 19156 General Specifications for Fire Monitors
GB 19157 General Specification for Remote-controlled Fire Monitor Systems
GA 494-2004 Fire Service Fall Protection Equipment
3 Terms and Definitions
For the purposes of this document, the terms and definitions given in GB 7956.1-2014 and the
following apply. For the convenience of application, some terms and definitions specified in GB
7956.1-2014 are listed as follows.
3.1
turntable operating platform and in rescue cage of aerial fire fighting vehicle.
4.2.1.5 Connection and disconnection of hydraulic oil pump of aerial fire fighting vehicle shall
be carried out in the cab of fire fighting vehicle; after connection of oil pump, there shall be light
indication on operating platform of turntable; and it is the same with water pump connection.
4.2.1.6 Aerial fire fighting vehicles with the maximum operating height not less than 50m and
equipped with firefighting sprayers shall be equipped with booster fire pump.
4.2.1.7 Firefighting gloves may be worn to operate stabilizer and boom (ladder) of aerial fire
fighting vehicle.
4.2.1.8 As for aerial fire fighting vehicles, control of fire monitor, speed adjustment of fire pump
and control of boom (ladder) shall be integrated in one place.
4.2.1.9 All components of aerial fire fighting vehicle shall not cover the front windshield glass.
4.2.1.10 As for the aerial fire fighting vehicle, the maximum operating height shall be greater
than 15 m and the revolution angle of boom (ladder) shall be greater than 90°.
4.2.2 Operating instructions and mark
4.2.2.1 Detailed illustration or literal operating instructions and warning specifications shall be
arranged at operating platform of stabilizer, rescue cage and turntable of aerial fire fighting vehicle
visible for the operation personnel.
4.2.2.2 Operation and warning specifications for different operation places shall be distinguished
by using fonts with different color or different size. Warning mark with the color meeting those
specified in Clause 9 of GB 15052-2010 and font size legible and readable by operation personnel
shall be arranged for operations possibly resulting in serious consequences. Corresponding
warning specifications shall be arranged at retractable stabilizer outer end, cat ladder of lower- and
upper-vehicles, fire monitor operation place, remote operation place and forced operation place.
4.2.3 Hydraulic system
4.2.3.1 Hydraulic oil tank volume of aerial fire fighting vehicle shall ensure the aerial fire
fighting vehicle is able to continuously complete 50 operation cycles, and the temperature of
hydraulic oil in the oil tank shall not be greater than 90℃. There shall be no boom (ladder) quiver,
creeping or blocking due to overhigh oil temperature, and the hydraulic elements and components
shall be free from oil leakage, oil penetration or damage.
4.2.3.2 There shall be indication of hydraulic system working pressure of boom (ladder) on the
turntable operating platform; and there shall be indication of hydraulic system working pressure of
stabilizer at the place for stabilizer operation.
4.2.3.3 Overflow valve shall be respectively arranged for hydraulic systems for stabilizer, boom
(ladder), etc. of aerial fire fighting vehicle.
4.2.3.4 Nameplate indicating hydraulic oil model, operating temperature range, capacity,
recommended replacement period and precautions for hydraulic oil replacement shall be arranged
nearby the hydraulic oil tank of aerial fire fighting vehicle. Nameplate shall be arranged where is
nearby hydraulic oil tank and convenient for reading. Device indicating liquid level and
temperature of hydraulic oil in hydraulic oil tank shall be arranged. Replaceable air filter shall be
arranged at hydraulic oil tank vent.
4.2.3.5 At least two replaceable hydraulic oil filters shall be arranged for hydraulic system of
aerial fire fighting vehicle; the hydraulic oil flow of oil filter shall be able to meet the
requirements of aerial fire fighting vehicle on hydraulic oil flow. Nameplate indicating oil filter
model and recommended replacement period of oil filter shall be arranged at a visible place
nearby the oil filter.
4.2.3.6 Turntable operating platform and rescue cage operating platform shall possess foot
switch; when the foot switch is opened and, meanwhile, the hydraulic system operating valve is
manipulated, the engine speed shall automatically response and be adjusted to be within the
working speed range of hydraulic oil pump, and the hydraulic system shall act correspondingly. If
the switch is not opened, the hydraulic system shall not response during hydraulic system
operating valve manipulation. When fire pump and hydraulic pump are working simultaneously,
the requirements of fire pump on rotation speed shall be met preferentially.
4.2.4 Safety requirements
4.2.4.1 Aerial fire fighting vehicle shall possess the function of interlocking of lower- and
upper-vehicles; the boom (ladder) cannot move before the stabilizer is extended and leveled and
supported reliably; before boom (ladder) retracts to the support bracket, the stabilizer of
lower-vehicle cannot retract. Interlock function of lower- and upper-vehicles shall be realized
automatically.
4.2.4.2 During moving process of boom (ladder), in case any stabilizer is not subjected to force,
there shall be audible and visual alarm signal, and the boom (ladder) cannot continue moving in
the hazardous direction but can move in safe direction.
4.2.4.3 In case the stabilizer of aerial fire fighting vehicle may stretch for working on single side,
the boom (ladder) can only move on the side on which stabilizer stretches and the action on the
other side shall be automatically prohibited. In case the stabilizers on both sides may partially
stretch for working, the safety system shall automatically limit the actions of the boom (ladder)
within safety range.
4.2.4.4 Add 1.1 times of rated load in rescue cage of aerial fire fighting vehicle; when the boom
(ladder) acts within the safety operating range, one stabilizer is allowed to leave the ground with
the rated load of its rescue cage shall not be less than 270kg.
4.2.5.1.5 If lateral cat ladder is arranged for platform fire fighting vehicle, auxiliary ladder able
of ensuring the personnel arrive at ground surface safely shall be arranged; there shall be transitive
ladder section connecting rescue cage on the top of crawling ladder.
4.2.5.1.6 If lateral cat ladder is arranged for platform fire fighting vehicle, lighting device shall
be arranged for it; the maximum load bearing capacity (number of people) of cat ladder shall be
indicated at the turntable operation place; the crawling ladder strength shall be able to ensure it is
free from permanent deformation or damage when it bears the maximum load (the maximum
quantity of people).As for the ladder step, the length shall be greater than 400mm, the spacing
shall be less than 350 mm, and the surface shall be antiskid with the anti-skid surface length
greater than 60% the length of the ladder step. There shall be handrail on the side of cat ladder far
away from the boom, and the handrail shall be higher than the ladder step by more than 300mm.
4.2.5.1.7 As for platform fire fighting vehicles equipped with fire monitor, its stability shall
comply with the requirements of 4.2.4.4 and all its boom shall be extended to the working limit
positions with an angle of 45°. If all booms cannot be extended to the working limit positions due
to structure, the last section of boom shall be extended to the working limit position with an angle
of 45°, and the inextensible boom shall be extended to the working limit position with the
maximum angle formed with horizontal plane. Load the rescue cage according to the specified
load during spraying, meanwhile, let the fire monitor spray at rated flow within the working range,
and the stability of platform fire fighting vehicle shall also meet the requirements of 4.2.4.4.
4.2.5.1.8 As for fire monitor installed on the platform fire fighting vehicle, the depression angle
and elevation angle for it winding the horizontal line as well as the left swing angle and right
swing angle for it winding the boom parallel line shall be greater than 45°.
4.2.5.1.9 As for fire monitor arranged for platform fire fighting vehicle, the flow rate shall not be
less than 30 L/s and the spray range shall not be less than 40 m; valve and pressure gauge shall be
arranged at the inlet of the fire monitor; the duration from opening the valve to the maximum
opening shall be greater than 5s.
4.2.5.2 Aerial ladder fire fighting vehicle
4.2.5.2.1 For aerial ladder fire fighting vehicles with a maximum operating height not greater
than 40 m, the duration for ladder lifting from driving position to the maximum operating height
and rotating by 90° shall be less than 120s. For aerial ladder fire fighting vehicle with the
maximum operating height greater than 40 m, such duration shall increase by 30 s for each 10 m
of the part exceeding 40 m; in case the length of the part exceeding 40m is less than 10m, the
value of such length shall be rounded off.
4.2.5.2.2 The duration for stabilizer extending, supporting and being leveled shall not be greater
than 40 s.
4.2.5.2.3 As for aerial ladder fire fighting vehicle, the area of its rescue cage shall be greater
than 1.0m2 and that of its lift shall be greater than 0.8m2.
4.2.5.2.4 As for aerial ladder fire fighting vehicle with the rescue cage monitor not spraying
water, the rated load of its rescue cage shall not be less than 180kg.
4.2.5.2.5 As for aerial ladder fire fighting vehicle, auxiliary ladder, which may directly arrive the
ground surface when unfolded, shall be arranged at the lower end of its ladder.
4.2.5.2.6 Lighting device shall be arranged for the ladder of aerial ladder fire fighting vehicle;
the maximum load bearing capacity (number of people) of ladder shall be indicated at the
turntable operation place; the ladder strength shall be able to ensure it is free from permanent
deformation or damage when it bears the maximum load (the maximum quantity of people). As
for the ladder step, the length shall be greater than 450mm, the spacing shall be less than 350 mm,
and the surface shall be antiskid with the anti-skid surface length greater than 60% the length of
the ladder step. There shall be handrail on both sides of ladder, and the handrail shall be higher
than the ladder step by more than 300mm.
4.2.5.2.7 If ladder step is round, the diameter of ladder step including anti-skidding layer shall
be greater than 32 mm.
4.2.5.2.8 If ladder step is of other shape, the sectional area of ladder step shall not be less than
775 mm2; as for the section including anti-skidding layer, the length of long side is not greater
than 80 mm and that of the short side is not less than 19 mm.
4.2.5.2.9 The ladder step installed on ladder of aerial ladder fire fighting vehicle shall be able to
withstand a force of 2,300N without fracture or obvious permanent deformation.
4.2.5.2.10 Ladder of aerial ladder fire fighting vehicle shall possess driving locking device
which shall ensure the ladder will not stretch when the aerial ladder fire fighting vehicle
imminently brakes at 30 km/h and shall be without additional switch.
4.2.5.2.11 As for aerial ladder fire fighting vehicle equipped with manned rescue cage and fire
monitor, its stability shall comply with the requirements of 4.2.4.4, the ladder shall be extended to
working limit position with an angle of 45°; load the rescue cage...