Safety Precautions for Civil Construction Activities

7/26/2019 Safety Precautions for Civil Construction Activities

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Safety Precautions1) Blasting

5) Smoking and use of matches, naked lights and readily ammable articles or open r

2) Excavation

1) n all works, an e!perienced and competent foremanor super"isor shall be placed in

#) $he foreman or super"isor shall be made responsible for the strict obser"ance, of th

%) &orkers shall be instructed to use safety de"ices and appliances pro"ided to them

') Safety helmets shall be worn by all persons entering trench where ha(ards from falli

) *ll trenches in soil more than 1.5 m deep shall be securely shored and timbered.

corrosi"e substances shall not be transported with e!plosi"es.to be transported in the same "ehicle.

-) etonators and other e!plosi"es for blasting shall be transported to the site of workmetallic co

0) !plosi"es shall be stored only in a maga(ine which is clean, dry, well "entilated, reaccordance with ndian lectricity *ct and ndian !plosi"es *ct and rules and regulatiresistant and securely locked.

%) f nitroglycerine from deteriorated e!plosi"es has leaked down onto the oor of thethoroughly with an agent obtained before hand from the supplier of the e!plosi"es.

') *ny package containing e!plosi"es shall not be dragged, dropped or handled roughlshielded location "isa."is the maga(ine.

) Smoking shall not be permitted nor matches. open lights, re, ame, or any other dhandling or using e!plosi"es.

) &hile planning drilling operations for blasting purposes, consideration must be gi"e"iew to a"oiding the possibilities of landslides after blasting.

12) $he face of rock shall be carefully e!amined before drilling, to determine the possimade to drill at a site if undenoted e!plosi"es are suspected.

11) $here shall not be any electric li"e wires or cables of any kind near electric blastinpurpose of ring the blast.

-) Sides of e!ca"ation shall be inspected by foreman or super"isor during the course oother ha(ardincreasing occurrence and protection against slides and ca"ings shall be i

0) 4omplete information on the underground structures such as water pipelines, seweis essential before doing the e!ca"ation work. 6roper precautions shall be taken to precalamities for the general public.

5) 3o e!ca"ation or earthwork below the le"el of any foundation of building or structur

taken to pre"ent danger to any person employed, from collapse of the structure or fall

) *ppropriate safety footwear rubber boots, protecti"e co"ers, etc) shall be worn byprotection.


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12) &here two or more pieces of sheathing are used one abo"e another, the sheathingo"erlap the lowest wales supporting the pieces of sheathing ne!t abo"e it. $hese piecesupported by wales and struts as the trench is made deeper.

11) *ll loose stones, pro8ectingclumps of earth, pockets of unstable material which migwhich is a ha(ard, shall be either remo"ed or the e!ca"ated sides ade7uately braced anot be permitted to work one abo"e the other.

1#) :ea"y e7uipment, such as e!ca"ating machinery and road tra;c shall be kept bacof trench or at least % m for trench deeper than % m.

1-) !ca"ations shall ha"e at least one ladder per 1.5 m of length or fraction thereof inthereof in case of relati"ely less ha(ardous works.


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es/ame shall be prohibited within the fenced area around it.

charge of the work

e safety rules.

hene"er it is necessary to do so.

ng stones, timber or other materials e!ist.

in the original containers or in securely locked separate noa

sonably cool, correctly located, protected against lightning inns framed thereunder substantially constructed bullet and re

!plosi"e maga(ine, the oor shall be desensiti(ed by washing

. $he packages shall be opened at a safe distance and at a

"ice capable of producing sparks or ame shall be carried while

to he nature of startum and the o"erburden with a

le presence of unred e!plosi"e. 3o attempt shall be

caps or other e!plosi"es e!cept at the time and for the

e!ca"ation from time to time and after e"ery rain, storm orncreased, if necessary.

rs, gas mains, electrical conduit system and other ci"ic facilities)ent accident to the workmen engaged in e!ca"ation work and

shall be commenced or continued unless ade7uate steps are

of any part thereof.

orkers/ employees who are engaged in work re7uiring such


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shall be so arranged so that the lower pieces of sheathings of sheathing shall be rmly dri"en into the soil and securely

ht come down on the workers in the trench or any conditionnd the trench suitably guarded. 9n steep slopes workmen shall

from the e!ca"ated sides at a distance not less than the depth

case of ha(ardous work and per -2 m of length or fractiontre abo"e the top of the cut to pro"ide a hand hold when


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FIRE PROTECTION

*t any construction workplace re ha(ards may take place due to the following>

1) ?as cutting and welding

#) 6oorly installed temporary wiring

-) efecti"e heating appliances

0) 4areless storage and handling of ammables

%) 4ombustible materials like saw dust, wood sha"ings and packing materials should b

') *isles of su;cient width should be pro"ided for easy passage of people during an e

) ?ood house keeping like orderly storage, cleaning of the site and regular remo"al of

1#) Super"isors and workmen at the site should be trained in the use of rst aid re g

5) nammable li7uids, gas cylinders and e!plosi"e substances should be stored separstores. @or storing of e!plosi"e substances the e!isting regulations of ndian !plosi"es

) lectrical wirings should be either 6A4 sheathed conductors or "ulcani(ed rubber caand the wiring should not be permitted to trail on the loor. 3o part of the electrical circany combustible material. *ll electrical installations should be as per the re7uirements

12) 9pen ames, welding and cutting operations, where"er necessary, should be carri*ll combustible materials lying around should be remo"ed or co"ered with wet gunny

#12 > 1' and 6art A of 3ational Building 4ode of ndia, 1- should be followed for


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marked clearly and stored separately.

ergency.

packing materials should be ensured.

hting e7uipment pro"ided at site

tely at a distance not less than 15 m from buildings, plants and*ct shall be followed.

bles. *ll 8oints should be made in porcelain insulated conductorsuit should be S 1-01% 6art 5 ) > 10 iaidwithin 152 mm oflaid down in S 1%0% >1# and 3ational lectrical 4ode, 10.

d out with stringent precautions and under proper super"ision.ags, tin sheets, etc, as welding sparks can y up to 12 m.the purpose.


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) Sca!ol"ing

0)"ery sca=old shall be e=ecti"ely braced to make it rigid and tied or guyed to make it s

Additional Precautions for Single Pole Scaolds

S6*43? 9@ $S 4lause 0.#.- of S -%% part 1)

:eigth of Sca=old :ori(ontal Spacing of $ies

B/w ?< C %m B/w %m and 1#m B/w 1#m C 1m

Dp to % metres

Dp to 1# metres

Dp to 1 metres

$he following minimum widths of platforms for "arious types of uses are recommended.

1) &here platform is not more than # m abo"e the ground or oor>a) 6ainters, decorators ot similar workmen -22 mm

b) 9ther types men and tool only ) 522 mm

#) &here platform is more than #E2 m abo"e the ground or oor>

a) +en, tools and material 22 mm

b) +en, tools,matetial and wheel barrows 1#99mm

-) $he erection, alterations and remo"al shodld be done only under the. super"ision of m

1)


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able.

Aertical Spacing

0m

0m

0m

n who are thoroughly e!perienced in this work.

ore than one platform at any time and the platform shall be ablee!ceeding -22 kg which consists of weight of two men, weight

with safe working load of 152 kg/mF.

distance from the wall at 1E m apart and connected

e braced both longitudinally and trans"ersely so that the

ent structure to pre"ent mo"ement of the sca=old either

sca=oldG *ll putlogs shall be left in position until dismantling isspecied in 0.#.-.

su5ciently and properly strutted or braced to ensure stability.be permitted.

that will pre"ent lateral displacement. *ll fasteners and

ing four times the thickness of the plank unless it is e=ecti"ely

y rains or storm, the sca=olds should be inspected by the siten before starting use.


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Electrical #or$

1) *ll work on ma8or electrical installations shall be carried out under permittowork s

#) 3o work shall be commenced on li"e mains unless it is specically intended to be so

7) Work on Live Mains and Apparatus

a) mmediately before starting work, rubber gauntlets, if used, shall be thoroughly e!a

) !posed li"e e7uipment in the "icinity shall be cordoned o= so that persons working

10) Testing and marking of devices

11) denti!cation of ca"les to "e #orked upon

1$) %art&ing and s&ort'circuiting main

1-) $he personincharge should also conduct drills in articial respiration, rendering

-) n such cases all possible precautions shall be taken to ensure the safety of the sta=or indirectly connected with the work

0) Such work shall only be carried out with proper e7uipment pro"ided for the purpose

and e!perienced persons who are aware of the danger that e!ists when working on or

5) 9n completion of the work for which the permittowork is issued, the personinchardischarged to the issuing authority.

recogni(ed methods should be used.

b) 3o li"e part should be within unsafe distance of a person working on li"e low and munless he is properly protected.

c) &hen dead mains are connected to li"e mains, all connections to the li"e parts shallchecked to ensure that only like phases are connected together.

are racked out. &here possible, the isolation should be "isibly checked

intended and should be tested periodically

* cable shall be identied as that ha"ing been pro"ed dead prior to cutting or carryingthe cable. * noncontact indicating rod, induction testing set or spiking de"ice may be

:igh "oltage mains shall not be worked upon unless they are discharged to earth afterearthing and shortcircuiting e7uipment is ade7uate to carry possible shortcircuit currewhere"er installed should be locked up.


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stem which is now well established

done by specially trained sta=

ined to see whether they are in sound condition

on the released e7uipment in ser"ice

st aid and re ghting.

engaged for such work, and also of others who may be directly

and, after taking necessary precautions, by specially trained

ear li"e mains or apparatus.

e of the maintenance sta= should return the permit duly

dium "oltage mains so that he does not come in contact with it

be made last, and in all cases the phase se7uence should be

out any operation which may in"ol"e work on or mo"ement ofused for pro"ing the cable dead

making them dead and are earthed and shortcircuited withnts and specially meant for the purpose. *ll earthing switches


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@*

1) @rom height such as "arious oors, sca=olding, sloping roofs, hoists, ladders, steps,

#) n pits such as lift shaft, down stairs, chutes, basements and e!ca"ations, etc

-) @rom chimneys, steel structures, plant and machinery, etc, such as hoists, cranes, tr

0) Safety belts and harness pre"ent fall of workers while working at heights and hence

(all from Ladders

@ollowing salient points should be specially taken care of>

1) Safe anchorages on rm footing should be pro"ided.

#) Swaying, sagging, mo"ements on sides should be a"oided.

-) $he ladders should be placed at correct angle of repose

0)$he gap between the last rung and the top oor le"el shall not be kept more than ##

(all from oists

1) 6ro"ision of gates for hoists and wire nets on each loor/landing should be made to p

#) @all from Sca=oldings, Stagings, etc

(all from *oors and various store+s

(all,from Sloping and (ragile -oofs, etc

(all in Pits, %scavatiotts, Lift S&afts. d#onstairs. /&utes and asements. elc

*ll accesses should be barricaded to pre"ent accident fall

(alls ,from /&imne+s, Structural (rame#ork, Plant Mac&iner+

-) *ll stagings, sca=oldings or platforms should stand on rm ground and should be semm high. $oe boards at least 122 mm high should also be pro"ided to pre"ent fall of p

1) *ll oors after casting should be pro"ided with walls at end as soon as possible to prshould be pro"ided. Dnauthorised persons should not be allowed and if work is carriedof f1oor opening sha be co"ered or barricated to a"oid fall through the openings.

@or sloping and fragile roof selfsupporting platform should be used. Safety nets may alpro"ided with safety belts, safety harness, helmets, etc. Securely supported crawling b

Such falls should be pre"ented by following the safety regulations in letter and spirit. 6harnesses, etc, reduce chances of fall. Safety belts and harnesses sa"e workers from g


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oles and platforms, etc, erected for e!ecution of the work.

ucks, dumpers etc.

shall be used compulsorily

2 mm.

re"ent fall of workers.

ure, properly anchored and pro"ided with railings atleast 22rsons.

e"ent falll of persons. n case of delay, safety parapet barricadesout beyond day light, articial lights shall be pro"ided. *ll types

so be pro"ided inside below the roof. $he workers should beoards or ladders shall be used while working on fragile roof.

ro"ision of railings, catwalks, wiremesh, safety belts andra"e in8uries.


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Concreting

0) $he hoisting e7uipment used to for concreting includes cranes.

5) Safety to be followed in case if a crane is used for concreting generally for casting o

') *ccess to and egress from the operatorIs stand should be safe from any position oft

) 4ranes should not be used to pull out !ed ob8ects with a slanting pull, drag ob8ects

) &hen a derrick is not in use, the boom should be lowered to pre"ent it from swingin

1) @or electric dri"en mi!ers, the wire connecting the mi!ers should be in good and souarthingof electric motor should be done as per rules and specications.

#) *ccidents normally occur during the cleaning of mi!ing drum. 4are should be taken&ireropes operating the drum and clutches should be inspected regularly

-) 4oncrete can be placed manually if the 7uantity is less, or mechanically if the 7uantiuse of sca=oldings. $hus, the chances of accidents are relati"ely higher.

%) 3o crane should be used unless a competent person has inspected and tested it anload.

12) :oists must be enclosed at ground le"el by substantial enclosures and gates at leaaccommodate the engine or motor.


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columns>

e crane.

or mo"e "ehicles.

.

nd condition, and the circuitbreaker should be well maintained.

o display notice, JDnder HepairsJ while cleaning the drum.

ity is large. $he former method re7uires more workers and the

furnished a certicate specifying the ma!imum safe working

st # m high and the enclosures should be e!tended to

Safety Precautions for Civil Construction Activities

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