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أرجو التثبيت - مواضيع من كافة نظم القياسات الدولية nfpa- ashrae- astm- api- aci

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  1. [1]
    الصورة الرمزية مصطفى الوكيل
    مصطفى الوكيل
    مصطفى الوكيل غير متواجد حالياً

    عضو متميز

    تاريخ التسجيل: Apr 2007
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    أرجو التثبيت - مواضيع من كافة نظم القياسات الدولية nfpa- ashrae- astm- api- aci

    مواضيع هندسية وأكواد هامة تهم كل مهندس مأخوذة من النظم القياسية الدولية المعترف بها مثال
    ashrae

    nfpa

    aci

    astm

    ubc

    .
    .
    .
    .

    وأخرى كثيرة

    وأتمنى من القائمين على هذا المنتدى الرائع تثبيت هذا الموضوع لما له من فائدة ووعد منى أن أضيف إليه كل يوم مواضيع جديدة ، والله ولى التوفيق





  2. [2]
    مصطفى الوكيل
    مصطفى الوكيل غير متواجد حالياً
    عضو متميز
    الصورة الرمزية مصطفى الوكيل


    تاريخ التسجيل: Apr 2007
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    Nfpa 20

    NFPA 20
    Standard for the Installation of Stationary Pumps for Fire
    Protection
    1999 Edition
    ===========================================

    Chapter 1 Introduction

    1-1* Scope.

    This standard deals with the selection and installation of pumps supplying water for private
    fire protection. Items considered include water supplies; suction, discharge, and auxiliary
    equipment; power supplies; electric drive and control; internal combustion engine drive and
    control; steam turbine drive and control; and acceptance tests and operation. This standard
    does not cover system water supply capacity and pressure requirements (see A-2-1.1), nor
    does it cover requirements for periodic inspection, testing, and maintenance of fire pump
    systems. This standard does not cover the requirements for installation wiring of fire pump
    units.

    1-2 Purpose.
    1-2.1


    The purpose of this standard is to provide a reasonable degree of protection for life and
    property from fire through installation requirements for stationary pumps for fire protection
    based upon sound engineering principles, test data, and field experience. This standard
    includes single-stage and multistage pumps of horizontal or vertical shaft design.
    Requirements are established for the design and installation of these pumps, pump drivers,
    and associated equipment. The standard endeavors to continue the excellent record that has
    been established by stationary pump installations and to meet the needs of changing
    technology. Nothing in this standard is intended to restrict new technologies or alternate
    arrangements provided the level of safety prescribed by the standard is not lowered.

    1-2.2 Existing Installations.

    Where existing pump installations meet the provisions of the standard in effect at the time
    of purchase, they shall be permitted to remain in use provided they do not constitute a
    distinct hazard to life or adjoining property.

    1-3 Other Pumps.

    Pumps other than those specified in this standard and having different design features shall
    be permitted to be installed where such pumps are listed by a testing laboratory. They shall
    be limited to capacities of less than 500 gpm (1892 L/min).

    1-4* Approval Required.
    1-4.1


    Stationary pumps shall be selected based on the conditions under which they are to be
    installed and used.

    1-4.2

    The pump manufacturer or its designated representative shall be given complete information
    concerning the water and power supply characteristics.

    1-4.3

    A complete plan and detailed data describing pump, driver, controller, power supply,
    fittings, suction and discharge connections, and water supply conditions shall be prepared
    for approval. Each pump, driver, controlling equipment, power supply and arrangement, and
    water supply shall be approved by the authority having jurisdiction for the specific field
    conditions encountered.

    1-5 Pump Operation.

    In the event of fire pump operation, qualified personnel shall respond to the fire pump
    location to determine that the fire pump is operating in a satisfactory manner.

    1-6 Unit Performance.
    1-6.1*


    The unit, consisting of a pump, driver, and controller, shall perform in compliance with this
    standard as an entire unit when installed or when components have been replaced.

    1-6.2

    The complete unit shall be field acceptance tested for proper performance in accordance
    with the provisions of this standard. (See Section 11-2.)

    1-7 Certified Shop Test.

    Certified shop test curves showing head capacity and brake horsepower of the pump shall be
    furnished by the manufacturer to the purchaser. The purchaser shall furnish this data to the
    authority having jurisdiction.

    1-8 Definitions.

    Additive. A liquid such as foam concentrates, emulsifiers, and hazardous vapor suppression
    liquids and foaming agents intended to be injected into the water stream at or above the
    water pressure.
    Approved.* Acceptable to the authority having jurisdiction.

    Aquifer. An underground formation that contains sufficient saturated permeable material to
    yield significant quantities of water.

    Aquifer Performance Analysis. A test designed to determine the amount of underground
    water available in a given field and proper well spacing to avoid interference in that field.
    Basically, test results provide information concerning transmissibility and storage
    coefficient (available volume of water) of the aquifer.

    Authority Having Jurisdiction.* The organization, office, or individual responsible for
    approving equipment, materials, an installation, or a procedure.

    Automatic Transfer Switch. Self-acting equipment for transferring one or more load
    conductor connections from one power source to another.

    Branch Circuit. The circuit conductors between the final overcurrent device protecting the
    circuit and the utilization equipment.

    Can Pump. A vertical shaft turbine-type pump in a can (suction vessel) for installation in a
    pipeline to raise water pressure.

    Centrifugal Pump. A pump in which the pressure is developed principally by the action of
    centrifugal force.

    Corrosion-Resistant Material. Materials such as brass, copper, monel, stainless steel, or
    other equivalent corrosion-resistant materials.

    Diesel Engine. An internal combustion engine in which the fuel is ignited entirely by the
    heat resulting from the compression of the air supplied for combustion. The oil-diesel
    engine, which operates on fuel oil injected after compression is practically completed, is the
    type usually used as a fire pump driver.

    Disconnecting Means. A device, group of devices, or other means (e.g., the circuit breaker
    in the fire pump controller) by which the conductors of a circuit can be disconnected from
    their source of supply.

    Drawdown. The vertical difference between the pumping water level and the static water
    level.

    Dripproof Guarded Motor. A dripproof machine whose ventilating openings are guarded
    in accordance with the definition for dripproof motor.

    Dripproof Motor. An open motor in which the ventilating openings are so constructed that
    successful operation is not interfered with when drops of liquid or solid particles strike or
    enter the enclosure at any angle from 0 to 15 degrees downward from the vertical.

    Dust-Ignition-Proof Motor. A totally enclosed motor whose enclosure is designed and
    constructed in a manner that will exclude ignitable amounts of dust or amounts that might
    affect performance or rating and that will not permit arcs, sparks, or heat otherwise
    generated or liberated inside of the enclosure to cause ignition of exterior accumulations or
    atmospheric suspensions of a specific dust on or in the vicinity of the enclosure.

    Electric Motors. Motors that are classified according to mechanical protection and methods
    of cooling.

    End Suction Pump. A single suction pump having its suction nozzle on the opposite side
    of the casing from the stuffing box and having the face of the suction nozzle perpendicular
    to the longitudinal axis of the shaft.

    Explosionproof Motor. A totally enclosed motor whose enclosure is designed and
    constructed to withstand an explosion of a specified gas or vapor that could occur within it
    and to prevent the ignition of the specified gas or vapor surrounding the motor by sparks,
    flashes, or explosions of the specified gas or vapor that could occur within the motor casing.

    Feeder. All circuit conductors between the service equipment or the source of a separately
    derived system and the final branch-circuit overcurrent device.

    Fire Pump Controller. A group of devices that serve to govern, in some predetermined
    manner, the starting and stopping of the fire pump driver as well as monitoring and
    signaling the status and condition of the fire pump unit.

    Fire Pump Unit. An assembled unit consisting of a fire pump, driver, controller, and
    accessories.

    Flexible Connecting Shaft. A device that incorporates two flexible joints and a telescoping
    element.

    Flexible Coupling. A device used to connect the shafts or other torque-transmitting
    components from a driver to the pump, and that permits minor angular and parallel
    misalignment as restricted by both the pump and coupling manufacturers.

    Flooded Suction. The condition where water flows from an atmospheric vented source to
    the pump without the average pressure at the pump inlet flange dropping below atmospheric
    pressure with the pump operating at 150 percent of its rated capacity.

    Flow Unloader Valve. A valve that is designed to relieve excess flow below pump capacity
    at set pump pressure.

    Groundwater. That water that is available from a well, driven into water-bearing
    subsurface strata (aquifer).

    Guarded Motor. An open motor in which all openings giving direct access to live metal or
    rotating parts (except smooth rotating surfaces) are limited in size by the structural parts or
    by screens, baffles, grilles, expanded metal, or other means to prevent accidental contact
    with hazardous parts. Openings giving direct access to such live or rotating parts shall not
    permit the passage of a cylindrical rod 0.75 in. (19 mm) in diameter.

    Head.* A quantity used to express a form (or combination of forms) of the energy *******
    of water per unit weight of the water referred to any arbitrary datum.

    Horizontal Pump. A pump with the shaft normally in a horizontal position.

    Horizontal Split-Case Pump. A centrifugal pump characterized by a housing that is split
    parallel to the shaft.

    Internal Combustion Engine. Any engine in which the working medium consists of the
    products of combustion of the air and fuel supplied. This combustion usually is effected
    within the working cylinder but can take place in an external chamber.

    الموضوع له تكملات كثيرة تابعونا

    0 Not allowed!


    مهندس إستشارى / مصطفى الوكيل
    M.E.P. Manager - ITCC Project, Riyadh
    Zuhair Fayez
    ــــــــــــــــــــــــــــــــــــــ

  3. [3]
    مصطفى الوكيل
    مصطفى الوكيل غير متواجد حالياً
    عضو متميز
    الصورة الرمزية مصطفى الوكيل


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    Isolating Switch. A switch intended for isolating an electric circuit from its source of
    power. It has no interrupting rating and it is intended to be operated only after the circuit has
    been opened by some other means.

    Listed.* Equipment, materials, or services included in a list published by an organization
    that is acceptable to the authority having jurisdiction and concerned with evaluation of
    products or services, that maintains periodic inspection of production of listed equipment or
    materials or periodic evaluation of services, and whose listing states that either the
    equipment, material, or service meets appropriate designated standards or has been tested
    and found suitable for a specified purpose.

    Manual Transfer Switch. A switch operated by direct manpower for transferring one or
    more load conductor connection from one power source to another.

    Maximum Pump Brake Horsepower. The maximum brake horsepower required to drive
    the pump at rated speed. The pump manufacturer determines this by shop test under
    expected suction and discharge conditions. Actual field conditions can vary from shop
    conditions.

    Net Positive Suction Head (NPSH) (hsv). The total suction head in feet (meters) of liquid
    absolute, determined at the suction nozzle, and referred to datum, less the vapor pressure of
    the liquid in feet (meters) absolute.

    Open Motor. A motor having ventilating openings that permit passage of external cooling
    air over and around the windings of the motor. Where applied to large apparatus without
    qualification, the term designates a motor having no restriction to ventilation other than that
    necessitated by mechanical construction.

    Pump, Additive. A pump that is used to inject additives into the water stream.

    Pump, Foam Concentrate. See definition of Pump, Additive.

    Pump, Gear. A positive displacement pump characterized by the use of gear teeth and
    casing to displace liquid.

    Pump, In-Line. A centrifugal pump whose drive unit is supported by the pump having its
    suction and discharge flanges on approximately the same centerline.

    Pump, Piston Plunger. A positive displacement pump characterized by the use of a piston
    or plunger and cylinder to displace liquid.

    Pump, Positive Displacement. A pump that is characterized by a method of producing flow
    by capturing a specific volume of fluid per pump revolution and reducing the fluid void by a
    mechanical means to displace the pumping fluid.

    Pump, Rotary Lobe. A positive displacement pump characterized by the use of a rotor lobe
    to carry fluid between the lobe void and the pump casing from the inlet to the outlet.

    Pump, Rotary Vane. A positive displacement pump characterized by the use of a single
    rotor with vanes that move with pump rotation to create a void and displace liquid.

    Pumping Water Level. The level, with respect to the pump, of the body of water from
    which it takes suction when the pump is in operation. Measurements are made the same as with the static water level.

    Service.* The conductors and equipment for delivering energy from the electricity supply
    system to the wiring system of the premises served.

    Service Equipment.* The necessary equipment, usually consisting of a circuit breaker or
    switch and fuses, and their accessories, located near the point of entrance of supply
    conductors to a building, other structure, or an otherwise defined area, and intended to
    constitute the main control and means of cutoff of the supply.

    Service Factor. A multiplier of an ac motor that, when applied to the rated horsepower,
    indicates a permissible horsepower loading that can be carried at the rated voltage,

    frequency, and temperature. For example, the multiplier 1.15 indicates that the motor is
    permitted to be overloaded to 1.15 times the rated horsepower.

    Shall. Indicates a mandatory requirement.

    Should. Indicates a recommendation or that which is advised but not required.

    Standard. A document, the main text of which contains only mandatory provisions using
    the word “shall” to indicate requirements and which is in a form generally suitable for
    mandatory reference by another standard or code or for adoption into law. Nonmandatory
    provisions shall be located in an appendix, footnote, or fine-print note and are not to be
    considered a part of the requirements of a standard.

    Static Water Level. The level, with respect to the pump, of the body of water from which it
    takes suction when the pump is not in operation. For vertical shaft turbine-type pumps, the
    distance to the water level is measured vertically from the horizontal centerline of the
    discharge head or tee.

    Total Discharge Head (hd). The reading of a pressure gauge at the discharge of the pump,
    converted to feet (meters) of liquid, and referred to datum, plus the velocity head at the
    point of gauge attachment.

    Total Head (H), Horizontal Pumps.* The measure of the work increase per pound
    (kilogram) of liquid, imparted to the liquid by the pump, and therefore the algebraic
    difference between the total discharge head and the total suction head. Total head, as
    dete atmospheric pressure. Total suction lift, as determined on test, is the reading of a liquid
    manometer at the suction nozzle of the pump, converted to feet (meters) of liquid, and
    referred to datum, minus the velocity head at the point of gauge attachment.


    تابعونا من فضلكم

    0 Not allowed!


    مهندس إستشارى / مصطفى الوكيل
    M.E.P. Manager - ITCC Project, Riyadh
    Zuhair Fayez
    ــــــــــــــــــــــــــــــــــــــ

  4. [4]
    مصطفى الوكيل
    مصطفى الوكيل غير متواجد حالياً
    عضو متميز
    الصورة الرمزية مصطفى الوكيل


    تاريخ التسجيل: Apr 2007
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    Totally Enclosed Fan-Cooled Motor. A totally enclosed motor equipped for exterior
    cooling by means of a fan or fans integral with the motor but external to the enclosing parts.

    Totally Enclosed Motor. A motor enclosed so as to prevent the free exchange of air
    between the inside and the outside of the case but not sufficiently enclosed to be termed
    airtight.

    Totally Enclosed Nonventilated Motor. A totally enclosed motor that is not equipped for
    cooling by means external to the enclosing parts.

    Velocity Head (hv).* The velocity head is figured from the average velocity (v) obtained by
    dividing the flow in cubic feet per second (cubic meters per second) by the actual area of
    pipe cross section in square feet (square meters) and determined at the point of the gauge
    connection.

    Vertical Lineshaft Turbine Pump. A vertical shaft centrifugal pump with rotating impeller
    or impellers and with discharge from the pumping element coaxial with the shaft. The pumping element is suspended by the conductor system, which encloses a system of vertical
    shafting used to transmit power to the impellers, the prime mover being external to the flow
    stream.

    Wet Pit. A timber, concrete, or masonry enclosure having a screened inlet kept partially
    filled with water by an open body of water such as a pond, lake, or stream.

    1-8.1 Additional Definitions.
    Additional applicable definitions can be found in the latest edition of Hydraulics Institute Standards for Centrifugal, Rotary and Reciprocating Pumps and NFPA 70, National Electrical Code®.

    1-9 Units.
    Metric units of measurement in this standard are in accordance with the modernized metric system known as the International System of Units (SI). Two units (liter and bar), outside of
    but recognized by SI, are commonly used in international fire protection. These units are listed in Table 1-9 with conversion factors.

    تابعونا من فضلكم

    0 Not allowed!


    مهندس إستشارى / مصطفى الوكيل
    M.E.P. Manager - ITCC Project, Riyadh
    Zuhair Fayez
    ــــــــــــــــــــــــــــــــــــــ

  5. [5]
    مصطفى الوكيل
    مصطفى الوكيل غير متواجد حالياً
    عضو متميز
    الصورة الرمزية مصطفى الوكيل


    تاريخ التسجيل: Apr 2007
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    وَذَا النُّونِ إِذ ذَّهَبَ مُغَاضِباً فَظَنَّ أَن لَّن نَّقْدِرَ عَلَيْهِ فَنَادَى فِي الظُّلُمَاتِ أَن لا إِلَهَ إلاأَنتَ سُبْحَانَكَ إِنِّي كُنتُ مِنَ الظَّالِمِينَ

    =====================

    0 Not allowed!


    مهندس إستشارى / مصطفى الوكيل
    M.E.P. Manager - ITCC Project, Riyadh
    Zuhair Fayez
    ــــــــــــــــــــــــــــــــــــــ

  6. [6]
    مصطفى الوكيل
    مصطفى الوكيل غير متواجد حالياً
    عضو متميز
    الصورة الرمزية مصطفى الوكيل


    تاريخ التسجيل: Apr 2007
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    إضغط على الصورة لتكبيرها



    هذا رابط التحميل

    http://file13.9q9q.net/Download/3733...itled.jpg.html

    1-9.1
    If a value for measurement as given in this standard is followed by an equivalent value in
    other units, the first stated is to be regarded as the requirement. A given equivalent value is
    considered to be approximate.

    1-9.2
    The conversion procedure for the SI units has been to multiply the quantity by the
    conversion factor and then round the result to the approximate number of significant digits.

    انتهى الفصل الأول بحمد الله

    تابعونا


    0 Not allowed!


    مهندس إستشارى / مصطفى الوكيل
    M.E.P. Manager - ITCC Project, Riyadh
    Zuhair Fayez
    ــــــــــــــــــــــــــــــــــــــ

  7. [7]
    شكرى محمد نورى
    شكرى محمد نورى غير متواجد حالياً
    مشرف


    تاريخ التسجيل: Mar 2006
    المشاركات: 4,552

    وسام الاشراف

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    الاخ مصطفى الوكيل .

    تحية طيبة .

    نتابع موضوعك ومدى اهتمام الاعضاء به والله الموفق .

    شكرا على اهتمامك وحرصك .


    البغدادي

    0 Not allowed!



  8. [8]
    مصطفى الوكيل
    مصطفى الوكيل غير متواجد حالياً
    عضو متميز
    الصورة الرمزية مصطفى الوكيل


    تاريخ التسجيل: Apr 2007
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    ملحوظة : لقد إنتقل الموضوع إلى موضوع - حصريا كافة النظم القياسية الدولية وشكرا

    إخوانى لقد إنتقل الموضوع إلى موضوع
    حصريا - كافة النظم القياسية الدولية
    فتابعونا هناك وشكرا
    وأرجو من الأخ المشرف المهندس شكري إغلاق هذا الموضوع وإعتماد الآخر


    0 Not allowed!


    مهندس إستشارى / مصطفى الوكيل
    M.E.P. Manager - ITCC Project, Riyadh
    Zuhair Fayez
    ــــــــــــــــــــــــــــــــــــــ

  9. [9]
    مصطفى الوكيل
    مصطفى الوكيل غير متواجد حالياً
    عضو متميز
    الصورة الرمزية مصطفى الوكيل


    تاريخ التسجيل: Apr 2007
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    الرجاء إغلاق هذا الموضوع

    أرجو من الأخ المشرف أن يلغى هذا الموضوع وسوف أقوم بنشر مواضيع متفرقة من كتب إليكترونية تخص ذات الموضوع وليس الكود نفسه

    كما أننى وجدت قسم فى المنتدي خاص بالأكواد هذا عنوانه

    http://www.arab-eng.org/vb/t98124.html




    والله ولى التوفيق ،


    0 Not allowed!


    مهندس إستشارى / مصطفى الوكيل
    M.E.P. Manager - ITCC Project, Riyadh
    Zuhair Fayez
    ــــــــــــــــــــــــــــــــــــــ

  10. [10]
    باسم حسين خضير
    باسم حسين خضير غير متواجد حالياً
    عضو


    تاريخ التسجيل: Feb 2009
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    السلام عليكم احتاج الى المدونة الكاملة الحديثة للمواضيع ادناه مع شكري وتقديري
    nfpa
    british codes of practice

    0 Not allowed!



  
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