Section 26- Installation of electrical equipment
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Questions and Answers

If there is a combustible surface directly under stationary or fixed electrical equipment, that surface shall be covered with a steel plate at least ...mm thick that shall extend not less than ... mm ( Rule: 26-004)

  • a steel plate at least 1.6 mm and extend not less than 150 mm (correct)
  • a steel plate at least 1.8 mm and extend not less than 200 mm
  • a steel plate at least 3.6 mm and extend not less than 500 mm
  • a steel plate at least 2.4 mm and extend not less than 300 mm
  • dielectric liquid filled electrical equipment containing 23 L of liquid in one tank, or more than 69 L in a group of tanks, shall be located in an electrical vault, if provide with a metal pan or concrete curbing capable of collecting and retaining all the liquid( Rule: 26-010)

    True

    What are requirements, if capacitors filled with flammable liquids of 14 L or less in each tank shall not be required to be installed in a service room(Rule: 26-010(4)(a-c))

  • a metal pan or concrete curbing, no other dielectric liquid filled equipment within 4 m and each capacitor tank is doesn't provided with overcurrent protection.
  • a metal pan or concrete curbing, no other dielectric liquid filled equipment within 4.5 m and each capacitor tank is provided with overcurrent protection. (correct)
  • a metal pan or concrete curbing, has other dielectric liquid filled equipment within 3.5 m and each capacitor tank is provided with overcurrent protection.
  • a metal pan or concrete curbing, has other dielectric liquid filled equipment within 4.5 m and each capacitor tank is provided with overcurrent protection.
  • What are requirements, if dielectric liquid filled electrical equipment containing more than 46 L in one tank, or 137 L in a group and installed outdoor: (Rule: 26-012(1-4))

    <p>any combustible surface or building within 6 m, not obstruct firefighting operations and not have open drains for the disposal of liquid.</p> Signup and view all the answers

    all live parts of capacitors shall be inaccessible to unauthorized persons and non-current carrying metal parts of capacitors shall be bonded to ground.(Rule: 26-204,206)

    <p>True</p> Signup and view all the answers

    The ampacity of capacitor feeder circuits and branch circuits shall ne not less than ...

    <p>135% of the rated current of the capacitor.</p> Signup and view all the answers

    What are requirements if a transformer installed in outdoor? (Rule: 26-242(1))

    <p>have the bottom of their platform not less than 3.6 m above ground, have a suitable fence, indicating the highest voltage warning signs.</p> Signup and view all the answers

    What is working space around the transformer ?

    <p>3 m</p> Signup and view all the answers

    What is working space around three phase and and single phase transformer? (Rule: 26-242(2)(b))

    <p>three phase 1 m and single phase 0.6 m</p> Signup and view all the answers

    What is conductor size for a single transformer? (Rule :26-256)

    <p>not less than 125% of rated primary current of the transformer.</p> Signup and view all the answers

    Instrument voltage transformers shall have primary fuses rated not more than..(Rule: 26-260(1))

    <p>10 A for low-voltage circuits and 3 A for high-voltage circuits.</p> Signup and view all the answers

    Correct lists of marking of transformers.(Rule 26-262)

    <p>manufacturer's name, rating in kilovolt amperes, rated full load temperature rise, primary and secondary voltage ratings, frequency in hertz, liquid capacity, if of the liquid-filled type, type of liquid to be used, rated impedance and basic impulse insulation level for transformers rated 2.5 kV voltage class and higher.</p> Signup and view all the answers

    how to build a fence if the transformer is installed outdoor? (Rule: 26-

    <p>the minimum clearance between the fence and enclosures containing live parts shall be 1.1m, excluding barbed wire, shall be not less than 1.8 m high, posts shall be set at a depth of 1.1 m for end, gate and conner posts and 1 m for intermediate posts and spacing between posts shall be 3 m maximum.</p> Signup and view all the answers

    The conductor of connection between arrester and line conductor shall be (Rule: 26-408)

    <p>made of a copper conductor not smaller than No. 6 AWG</p> Signup and view all the answers

    panelboards shall not be located in coal bins, clothes closets, bathrooms, stairways, high ambient rooms, dangerous or hazardous locations, nor in any similar undesirable places.

    <p>True</p> Signup and view all the answers

    panelboards in dwelling units shall be installed as high as possible, with no overcurrent device operating handle positioned more than...(Rule: 26-600(2))

    <p>1.7 m above the finished floor level.</p> Signup and view all the answers

    How many receptacles allow to install for kitchen counters of dwelling at branch circuit ? (Rule: 26-656(d)(ii)

    <p>not more than 2 receptacles</p> Signup and view all the answers

    Each branch circuit supplying 125 V receptacles rated 20 A or less shall be provided with arc-fault protection .

    <p>True</p> Signup and view all the answers

    All receptacles installed outdoors and within 2.5 m of finished grade shall be protected with which type GFCI? ( Rule: 26-704)

    <p>GFCI- A type</p> Signup and view all the answers

    Tamper-resistant receptacles shall be installed at child care facilities, guest room and suites of hotels and motels, preschools, elementary education facilities and dwelling units. ( 26-706)

    <p>True</p> Signup and view all the answers

    what are requirements for receptacles installed outdoor? (Rule: 26-708)

    <p>wet location cover plates, installed facing downward at an angle of 45'c, 1 m above finished floor, proper weatherproof seal.</p> Signup and view all the answers

    what are requirements for a receptacles to installed on the roof-top? ( Rule: 26-710)

    <p>GFCI- A type, located within 7.5 m of the rooftop electrical equipment, not less than 750 mm above the finished roof and protected from mechanical damage.</p> Signup and view all the answers

    at least one receptacles shall be installed in each bathroom and washroom with a wash basin shall be located withing......( Rule: 26-720)

    <p>1 m</p> Signup and view all the answers

    At least one duplex receptacle shall be provide: washing machine, utility room and unfinished basement area. ( Rule: 26-720)

    <p>True</p> Signup and view all the answers

    What are requirements for installation of receptacles in residential building? ( 26-720)

    <p>any wall finished to within 450 mm, outlet duplex receptacle shall be an integral switching, receptacles shall not be mounted facing up in the work surface or counters in the kitchen or dining area.</p> Signup and view all the answers

    When installed any receptacles in the bathroom, what is minimum distance from bathtub or shower stall? ( 26-720(g))

    <p>500 mm</p> Signup and view all the answers

    A receptacle shall not be placed in a cupboard, cabinet, or similar enclosure, however, if receptacle intended only for a microwave oven, a cord-connected range hood or a cord-connected combination microwave oven/range hood fan.(Rule: 26-720(h))

    <p>True</p> Signup and view all the answers

    public corridors in buildings of residential occupancies shall have at least one duplex receptacle in each 10 m of length? (Rule: 26-720)

    <p>True</p> Signup and view all the answers

    what is required to install tap conductor for cooking unit? (Rule: 26-742)

    <p>a single branch circuit shall be permitted to be smaller than the branch circuit conductors, not more than 7.5 m in length, have an ampacity not less than the ampere rating of the built-in cooking unit they supply and have an ampacity not less than one-third the ampere rating of the branch circuit overcurrent device.</p> Signup and view all the answers

    when a free standing electric range installed in dwelling unit: current must be less than 50 A , the finished floor at a height not exceeding 130 mm to the Centre of the receptacle and with the U-ground slot oriented to either side.

    <p>True</p> Signup and view all the answers

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