October 2011 issue

SAFETY

NEWSLETTER

MESSAGE DESK

.

CONTENTS

1 Preventing injuries due to falling objects

2 Selection & use of Hand gloves

3 ELCB and RCCB

4

5

Glances of fire mock drill – Maithon

New joinee in Safety – Distribution

Thought for the month

For safety is not a gadget

but a state of mind

-Eleanor Everet

1. Preventing injuries due to falling objects- by Corp. Safety

Falling objects can result in severe head and brain injuries and even death. These

injuries are most common in construction sites but can occur in almost any work environment. They most frequently result from disorganized workspaces or material

handling accidents.

There are measures that can be taken to prevent falling object accidents. Housekeeping is an important part of reducing the risk of workplace injuries caused by falling objects. Storage spaces containing large or tall stacks of materials can cause significant

hazards.

Causes of Falling Object Injuries

Objects falling from construction

scaffolding and platforms which are

loose.

Dropped hand

tools or other

equipment being

used while work

is going on at a

higher level.

Falling objects dropped by workers at a

higher level.

Objects falling

from a load that

is being lifted

carried or

lowered

overhead.

Loose boxes or other objects that get

displaced and fall off from stacked

merchandise overhead.

Workers are not provided with adequate

personal safety equipment that can

protect them from falling objects.

Inadequate signage or barriers warning

employees that there is work going on

overhead.

Lifting equipment failure like crane.

Loads being lifted or carried overhead

may not be secured

properly, leading to

objects getting

dislodged and falling.

Prevention of Accidents from Falling Objects

If a load is placed on a construction

scaffold, there must be secured guardrails

(91cm height) and toe boards (9cm height)

to prevent objects from falling.

Any tools and materials that are used in a

high position must be secured to prevent

them from falling on workers below.

Canopies or nets must be used to catch

any falling objects.

Retractable should be used while

dismantling the scaffolds to prevent

accidental fall of material.

Housekeeping should be done as a part of

their daily work.

The lifting equipment must be checked

periodically and also before startup.

Any loads that must be lifted to a high

position must be secured properly with

strong restraints to prevent them from

slipping and falling

Avoid working underneath

loads being moved.

When any overhead work

is going on, workers

below must be given

sufficient warning in the

form of signs.

Barricading and signal

men should be

employed as and when required.

Material and equipment to be secured

whilst dismantling, lifting or moving.

Workers must be provided with protective

equipment like hardhats to protect them

from injuries caused by falling objects.

2. Selection & use of Hand gloves- Corp. Safety

.

S. No Name Applications and advantages Picture

1

Cotton cloth gloves

( Qualitative cotton fabric)

Applications- For general material and parts handling in

Automotive plants, Food industry

Advantages-

Total protection

Good air circulation

Comfort to hands

2

Cotton Knitted

Seamless Gloves

Applications-

Automobile

Mining

Packaging

Fishing

Handling and General multipurpose uses

Advantages-

Very comfortable

Cool to wear in all weather

3 Cotton canvas gloves

Applications- Offering light-duty protection in-

Automotive plants,

The food industry, and

For general material and parts handling

Advantages- Comfort

Breathe ability

4 Heat

Resistant Gloves

Applications-

Welding

Gas cutting Other hot works

Advantages-

High thermal resistance

5 Leather gloves

Applications- Heavy-duty jobs

Road construction

Slip building

Mining

Welding & heat application

All general purpose Advantages-

Great abrasion resistance

6

Poly-Urethane

Coating On Nylon

Gloves

Applications-

Assembly of electronic products, computer industries, CD making

Handling glass, food processing, clean-room

Automotive industries for precision work, inspection of medicine and food products.

Advantages-

Cut, abrasion & heat resistance

Comfort and light weight

Non-slip grip Close flexible fit

7

Lint Free Gloves

Applications- Suitable for clean-room environments and microscopy applications

To avoid fingerprints

To eliminate scratches Advantages-

Reusable

8 Nitrile Flock lined Gloves

Applications- Protection against

Chemical

Acids and

Alkalis solvents Advantages-

Non-allergic

Extra comfort and sweat absorption

9

Grip Hand Gloves

Applications-

Light duty work

General cut resistance applications Advantages-

Improved grip

10

Heat Resistant

Hand Gloves

Applications-

All types of hot works Advantages-

gloves being thick and strong provide higher level of safety to hands

11

Nitrile Coated Light

Coated Supported

Gloves

Applications-

Automotive & Domestic Appliances and Components

Assembly

Shipping and Material Handling

Warehousing

Job in oily and wet conditions Advantages-

Long wear without fatigue

Good resistance to- abrasion, cuts, punctures and tears

12

Welding leather gloves

Applications- welding

Advantages-

These gloves being thick and strong provide higher level of safety to hands

13

Fire Safety Hand

Gloves

Applications-

For fire safety Advantages-

Hygienic

Skin friendly and Easy to use

14

Electrical Resistance

Hand Gloves

Applications-

Work on electrical lines or appliances

Advantages-

They are resistant to electricity (from 500 up to 36000 volts)

3. ELCB and RCCB

ELCB

ELCB is a voltage operated device.

In ELCB, Trip coil is connected between

system ground and noncurrent carrying part of

the machines.

An ELCB is a specialized type of latching

relay that has a building's incoming mains

power connected through its switching

contacts so that the ELCB disconnects the

power in an earth leakage (unsafe) condition.

a) Normal operating circuit without any

fault The ELCB detects fault currents passing from live (hot) to the earth (ground) wire within the installation it protects.

b) Now there is condition of leakage

c) The solenoid operates and switch off

and remains so until manually reset

The ELCB will normally operate when the

voltage across the coil, which corresponds to

the voltage of the frame earth with respect to

the reference earth, exceeds about 40 V.

If sufficient voltage appears across the

ELCB's sense coil, it will switch off the power,

and remain “off” until manually reset.

An ELCB however, does not sense fault

currents passing from live to any other

earthed body.

RCCB

RCCB is a current operated device.

A residual current device (RCD), or residual

current circuit breaker (RCCB), is an electrical

wiring device that disconnects a circuit

whenever it detects that the electric current is

not balanced between the phase ("hot")

conductor and the neutral conductor.

Such an imbalance is sometimes caused by

current leakage through the body of a person

who is grounded and accidentally touching the

energized part of the circuit.

A lethal shock can result from these

conditions; RCDs are designed to disconnect

quickly enough to mitigate the harm caused

by such shocks.

a) Imbalance caused due to earth

leakage

b) RCCB opens the circuit

Imbalance caused due to earth leakage, the

RCCB opens the circuit thus preventing the

electrical shock.

ELCB works when there is earth fault, provided earth link is 100% connected

through the device.

RCCB works if there is any earth leakage.

RCCB works if a person gets electrocuted and the current through him flows

beyond the prescribed sensing current.

4. Glimpses of fire mock drill report – Maithon

Brief description of the drill

A large scale mock drill was conducted in Maithon on 07-10-2011.

Emergency assumed was fire at 17 meter-TG-1 area.

The overall response for the drill was found satisfactory.

A debriefing session was conducted at the end of drill to discuss the shortfalls observed and to

chart out an action plan for improvement.

Few pictures taken during the drill are produced below.

Fire crew in operation Rescue by fire crew

Muster at safe Assembly point

Assembly at assemble point

5. New joinee in Safety - Dharavi

Warm welcome to TATA POWER!!!

Mr. Santosh Dange has joined TATA POWER on 4th

October 2011. Prior to joining Tata Power he was associated

with The Bombay Dyeing & Mfg Co. Ltd, Mumbai. He has more

than 9 years of work experience with the organizations like

Godrej, Enercon & Raheja.

He holds a Diploma in Electrical & Electronics

Engineering and an Advanced Diploma in Industrial Safety

from MSBTE, Mumbai.

Mr. Santosh is attached to Distribution Support Services and is based out of Dharavi.

We invite your feedback on this newsletter. Write to us at safety@tatapower.com