tions, reference may be made to good practice 18. PROVISION OF

18.1 Provision for lifts shall be made for buildings more than 15 m in height. Planning and designing of lifts shall be done in accordance with the provisions given in Part VIII Building services, Section 5 Installation of lifts and escalators.

19. LIGHTNING PROTECTION OF BUILDINGS

19.1 Lightning protective system requires to be installed on all buildings and structures vulnerable talightning strokes owing to their height or exposed situtation, buildings of public of strategic importance, buildings of public resort, buildings housing valuable materials, ancient monuments, observatories, etc. For information regarding details of various factors that the risk of the structure being struck, the consequential effects of a stroke and other details, reference may be made to Part VIII Building services, Section 2 Electrical installation.

-* In

this part, where reference, is made to ‘accepted standards’ or ‘good practice’ in relation to design, testing, construction procedure or other information, the appropriate document listed at the end of this part may be used as a guide to theinterpretation of this terms.

BUILDING CODE OF INDIA

APPENDIX A

(Clause

CIVIL AVIATION FOR CONSTRUCTION IN THE

VICINITY OF AN AERODROME A-O. GENERAL

A-O.1 For the purpose of this Appendix, the following definitions shall apply.

A-O. 1.1 AEKODROME REFERENCE PO I N T

(ARP) -This is a designated point, which is established in the horizontal plane at or near the geometric centre of the landing area.

A-0.1.2 APPROACH

F

UNNEL

See

Fig. 1.

A-0.1.3 OR

R

EDUCED

L

EVEL

--This is the vertical distance of a point or a

level, on or

affixed to the surface of the earth, measured from the mean sea level.

A-O. 1.4

T

RANSITIONAL

A

REA is an area which

is

below a specified surface sloping upwards

and outwards from

the edge of the

approach funnel and from

a line originating at the

end of the inner

edge of each approach

area, drawn parallel to the runway centie line

in the direction of landing (see

Fig. 1).

A-0.1.5

R

UNWAY

STRIP See

Fig. 1.

SURFACE

A-l. PROHIBITED AREA

A-l.1 No building or structure shall be constructed or erected, or no tree shall be planted, on any land within the limits specified in A-l.2 and A-l.3 in respect of the aerodromes listed in A-3 and in respect of the aerodrome at Trivandrum.

A - l . 2 For the Listed in 3 These requirements shall be applicable for the land enclosed in approach funnels of the runway with a maximum distance of 360 m measured each runway and along the extended centre line of the runway. For the purpose of this clause, the requirements of approach funnel and an instrument runway shall be as given in A-1.2.1 to A-1.2.3.

A-1.2.1 Approach funnel in the case

of an

instrument runway means the area in the shape of an trapezium having the longer parallel side 4800 long (2400 m on either side of the extended centre line of the runway) and smaller parallel side 300 m long (150 m on either side of the extended centre

A

Instrument Runway

I B Non-Instrument Runway

All-dimensions are in

Fig. I

PART DEVELOPMENT CONTROL RULE.3 AND

line of the runway) where the smaller and longer parallel sides are placed at a distance of 60 m and I5 060 m. respectively, from the end of the runway and at right angles to the extended centre line.

A-f In the case of a non-instrument run-way, the approach funnel means the area in the shape an isosceles trapezium having the longer parallel side 1800 m long (900 m on either side of the extended centre line of the runway) and smaller parallel side 180 m long (90 m on either side of the extended centre line of the runway), where the smaller and longer parallel sides are placed at a distance of 60 m and 6540 m, respectively, from the end of the runway and at right angles to the extended centre line. Thereafter, the trapezium is fol-lowed by a contiguous rectangular area of that width for the remainder of the length up to a

distance of 15 060 m from the end of the runway.

A-1.2.3 An instrument runway is a runway served by visual and non-visual aid or aids providing at least directional guidance ade-quate for a straight in approach and intended for the operation of aircraft using instrument approach procedures.

For the Aerodrome at Trivandrum These requirements shall be applicable for the land enclosed in approach funnels of all run-w a y s run-w i t h a m a x i m u m d i s t a n c e o f 304.80 m, measured from each runway and along extended centre line of the runway, and the land enclosed in a belt of 30.48 m width outside the operational boundary of the drome. For the purpose of this clause, the requirements of approach funnel and opera-tional boundary shall be as given in A-1.3.1 and A-1.3.2.

A-l.3 Approach funnel means the area in the shape of an isosceles trapezium having the l o n g e r p a r a l l e l s i d e o f

(2 362.2 m on either side of the extended centre line of the runway) and smaller parallel side of 152.4 m (76.2 m on either side of the extended centre line of the runway) where the smaller and longer parallel sides are placed at a dis-tance of 60.9 m and 15301 m, respectively, from the end of the runway and at right angles to the extended centre line.

A-f..?.? Operational boundary means an area enclosed between parallel lines at distance of 152.4 m on either side of the centre line of the runways or 30.4 m from the boundary fencing of the aerodrome, is greater.

A-2. HEIGHT RESTRICTION

A-2.1 For the Aerodromes Listed in A-3 No building or structure higher than the

height specified in Tables 5 and 6 shall be constructed or erected, or no tree which is likely to grow or ordinarily grows higher than the height specified in the Tables 5 and 6, shall be planted, on any land within a radius of 20 km from ARP of the aerodromes listed in A-3, excluding the land covered by A-1.2.

S H E I G H T R E S T R I C T I O N W I T H RESPECT TO APPROACH FUNNELS

(Clauses A-2. A-2. I. not exceeding 42 m

More than 42 m but not exceeding m

iv) More than 63 m but not exceeding 84 m

9 viii) More than 147 m but

not exceeding 168 m ix) More than 168 m but

not exceeding 189 m x) More than 189 m but

not exceeding 210 m xi) More than 210 m

NATIONAL BUILDING CODE OF INDIA

A-2.1.1 Table 5 gives the height restriction

with respect to approach funnels and shall be applicable for the land enclosed in the approach funnels of all runways where distan-ces are measured from each end of the run-way, along extended centre line runway.

A-2.1.2 Table 6 gives height restriction with

In document SP7 - NBC 1983 (Page 61-64)