What items should not be kept in AC room?

Dear Readers,

It is continuation of our previous article" How to use AC in this hot season." Apart from the usage in hot sessions, we should also know what the materials are should not kept inside the AC room, so that we can use the AC in better.

Large metal objects such as iron bureaus, iron beds, iron tables and iron chairs should not be placed in the room. If they are placed in an AC room, they will absorb the cold and cool down first when the air in the room is cooled by the AC operation.

Thus, AC is used for more time than required. Along with running, the AC machine wears out quickly due to wastage of power and long running time of the compressor.

Some offices install false ceilings with thermocol to reduce the height of the room. Due to this the area of ​​the room is reduced. The room will be cool enough if it runs for a short time.

But this is only suitable for offices where doors are opened and closed frequently.

If installed in homes, the room will soon be filled with carbon dioxide emitted by people sleeping in closed rooms! This is not healthy!

AC if the room has iron furniture. The life of the engine will decrease slightly! In a nutshell that AC room should not have more Furnitures.

How to use AC in this hot season?

 Correct use of AC:

With the start of hot summer season and regular use of air conditioners, let's follow the correct method.

Most people have a habit of running their ACs at 20-22 degrees and when they feel cold, they cover their bodies with blankets. This leads to a double loss. How???

Did you know that our body temperature is 35 degrees Celsius? The body can easily tolerate temperatures between 23 degrees and 39 degrees. This is called human body temperature tolerance.

When the room temperature is too low or too high, the body reacts by sneezing and shivering.

When you run the AC at 19-20-21 degrees, the room temperature is much lower than the normal body temperature and this starts a process called hypothermia in the body, which affects blood circulation, thereby causing insufficient blood supply to certain parts of the body. sees Long-term disabilities such as arthritis can result.

When the AC is on there is mostly no sweat, so the body's toxins cannot get out, and in the long run there is a risk of many diseases like skin allergies or itching, high blood pressure etc.

When you run the AC at such low temperature, it keeps the compressor running at full power, even if it is 5 star rated, more power is consumed & it wastes money from your pocket.

What is the best way to run AC?? Set temperatures at 26 degrees or higher.

First setting the AC temperature to 20 - 21 will not give you any benefit, then It is always better to run the AC at 26+ degrees and keep the fan on slow speed. 28 plus degrees is ideal.

It consumes less electricity, and your body temperature is also within range, and there is no harm to your health.

Another advantage of this is that the AC will consume less electricity, the blood pressure on the brain will also decrease and the savings will ultimately help reduce the effects of global warming. How??

Let's say you save 5 units per night by running AC in 10 lakh houses at 26+ degrees, then we save 5 million units of electricity per day.

At the regional level this saving could be crores of units per day.

Please consider the above and do not run your AC below 26 degrees. Keep your body and environment healthy.

Compressed Gas Cylinders Safety

Dear Readers,

Industrial, manufacturing, repair shops, fabrication shops and construction operations require the use of compressed gases for a variety of different operations. Compressed gases present a unique hazard. Depending on the gas, there is a potential for simultaneous exposure to both mechanical and chemical hazards. 

Hazards include

• Fire & Explosion

• Missile hazard from broken cylinder heads

• Frostbite or gas injection under skin

• Impact from falling cylinders

• Poisoning     

• Asphyxiation     

• Over exposure 

Main Causes are inadequate training and supervision, poor installation, poor maintenance, poor storage, faulty equipment etc. 

We shall ensure at most safe precautions to create safe working environment to eliminate the risk of injury due to the compressed gas cylinders. The smart safety rules and controls are as follows.

• Inspect cylinders, regulators, flash back arrestors, hoses for damage and as per the standards before each use. Check cylinder & gas identification

• Use a cart/wheeled trolley or other secure means for moving - never carry or roll gas cylinders

• Grease or oils in areas where compressed oxygen is used can cause fire or explosion

• Use non-sparking tools for flammable gases

• Secure cylinders at work areas. Installation of caps on all cylinders

• Never refill or attempt to repair a gas cylinder

• Move leaking cylinders out of the offices/work areas – then vent all remaining gas.  Mark damaged cylinders “Damaged. Do not Use”

• Engineering controls such as gas cylinder storage areas, leak monitors, fume hoods, ventilation systems, sprinkler systems 

• Administrative controls such as inspections, training, audits, signage & labels, identification of authorized employees, safe operating procedures

• Proper personal protective equipment use

Personnel working with the compressed gas cylinders must be aware of the risks and follow safe work practices. Please take note on the identification of Hazards, required safety control measures, and communicate the information to the entire site crew.

Save Water

We should start saving the water we have and use the water we have, economically. Here are a few ideas on how to conserve water..

1. Almost all of us have reverse osmosis (RO) system installed at home for water for drinking and cooking. I am sure everyone know that it let's out almost one litre water to produce one litre drinking water. So keep a bucket to the outlet and store this water. This can very well be used for cleaning the floor, for toilet etc. What they normally say is, the bacteria which is there in this water will die in half an hour time when get exposed to normal air.

2. Similarly a bucket can be placed in the AC outlet. Everyday morning this water can be used for the plants in your flat, to clean your cars or even be drained into the rainwater harvesting system so that the ground water can get charged. In fact these outlets can be connected on a regular basis to get drained there.

3. Stop using running water for cleaning utensils and use water from bucket. By this practice lot of water can be saved.

4. Similarly use shower for bathing. This also would reduces water consumption.

5. Use your washing machine when you have a full load because washing machines are designed in such a way that it uses almost the same amount of water for washing low load to very high load.

6. If your washing machine's outlet is not connected to the closed drain. That is if the machine's outlet is let out in the bathroom, then the soap water which comes out of the machine can very well be used to soak your utensils which you have used for cooking.

7. Some of us face a problem with dust in the water. For example the bore well water may turn slightly muddy when the water bed goes down or because of the accumulated dirt in the overhead tant, the water may come with dust. Please don't waste this watter. Keep a block of Alam (padigaram in tamil) in the bathroom. Just dip this in the bucket that has the muddy water and allow it to dissolve by rotating your hand. A few rotations will do. After about 10-15 minutes you will see the dust and muddy substances settled in the bottom and crystal clear water in the top ! This Alam would be available in all Naatu marundhu shops.

These are some of the ideas.

If you come across any good ideas to save water please do share. Little drops of water make the mighty ocean.

Water saved is water produced.

Colour Code for Helmet

Color code for Helmet is used to identify about the person at industrial area.  Each and every company has their own standards. However an industrial practice following codes are used

White :- For Engineers, Supervisor, Managers, Foreman, Supernatant.

Green :- Safety Officers and Safety Stewards

Red :- Fire Fighters

Yellow :- Workmen, Technicians & Earth Moving Operators

Blue :- Electricians, Carpenters & Other Technical Operators

Gray :- Visitors

Brown :- Welders and Workers with high heat application

For Construction Industry also follow the same with some minor changes.

White & Green no changes

Red :- Fire fighters & Electrician

Yellow :- Workmen all category (Skilled, Semi Skilled & In Skilled)

Blue :- For Technicians like Carpenter & Technical Assistants

Generally White Colour used for Visitors

For More details about Safety Helmet Click Here

SWL for Mechanically Spliced Slings

Dear Readers,

During Rigging operations in construction we must know the SWL (Safe Working Load) of Rope and Tackles used. Some times we have to fabricate the sling from wire rope and suitably spliced. Permissible Load Lifting Capacity of Individual Slings fibre-core and mechanically spliced. Diameter of wire rope is in Inches and SWL is in MT

 

 

Size of Rope  = SWL

 

1). 1/2 "   =  1.196 MT

 

2). 5/8" = 2.133 MT

 

3). 3/4" = 2.683 MT

 

4). 1 " = 4.783 MT

 

5). 1 1/4" = 8.50 MT

 

6). 1 1/2" = 10.75 MT

 

7). 1 5/8" = 13.266MT

 

8). 1 3/4" = 15.383MT

 

 

 

 

It is always advised to take a load test by competent person / authorized agency before commencement of spliced sling in to operation/ Erection.

 

For More Details about SWL Click Here

For More Details about Steel Wire Rope Click Here 

Best Quote :

To be Successful in life, Forget the problems that you faced.. But, don't forget the lessons that you learnt from those problems. Have a Nice Day

Safe Working Load (SWL)

Dear Readers,

SWL is very important and essential for rigging & hoisting works during construction activities and sometimes stated as the Normal Working Load (NWL).

 

It is the mass or the force a piece of lifting equipment, lifting device or accessory can safely utilize to lift, suspend, or lower a mass without fear of breaking. Usually marked on the equipment by the manufacturer and is often 1/5 of the Minimum Breaking Strength (MBS) although other fractions may be used such as 1/4, 1/6 and 1/10. 

The SWL is determined by dividing the minimum breaking strength (MBS) of a component by a safety factor assigned to that type and use of equipment. The safety factor generally ranges from 4 to 6 unless a failure of the equipment could pose a risk to life; in that instance the safety factor would be a 10.

For example, if a line has an MBS of 1,000 pounds and a safety factor of 5, then the SWL would be 200 pounds. 1000/5 = 200.  

Thumb Rule for Determination of SWL of Wire rope slings:

SWL = 8*D²; in Tons; Where D diameter of rope in inches.

Example:

1 Inch diameter rope 1*1*8 = 8 Tons

½ inch diameter rope 0.5*0.5*8 = 2 Tons

Other way to calculate the SWL of any wire rope by

1. Obtained the Breaking strength of the wire rope as per the class.
2. Consider the Safety factor (Generally taken 5 for wire rope, except taken 10 while use for lifting person)
3. Divided the breaking Strength by Factor of safety.

 For More Details about Safety Helmet Click Here

Precautions During Flood

Dear Readers,

Engineer Diary advised. following points may be noted when you encounter the flood in your residence.

1. If the water level inside your house reaches ankle level, It's time to leave.

 

2. Pack a small bag with couple days worth of cloths, toiletries, water, torch, phone charger.

 

3. Take as much cash as you can from your home.

 

4. Move all your essential documents to high ground and cover the same with plastic or keep inside the plastic bag.

 

5. Switch off electric mains and inverters before leaving, even if electricity is gone.

 

6. Keep as little as possible in the fridge.

 

7. Properly close all doors and windows before leaving. Objects can float in or out.

 

8. Secure/bring in outdoor furniture or other items that might float away and become a potential hazard.

 

9. Do not walk through moving water. Just six inches of moving water can knock you down, and two feet water can sweep your vehicle away.

 

10. Do not take shelter in a car. The power locking system can jam and trap you inside.

 

11. Do not try to drive over a flooded road. If your car stalls, abandon it immediately and seek an alternate route.

 

12. When you leave your home take one cup of sugar and salt (Equivalent quantity of both).

 

Please note that mixed water of salt and sugar will survive you two days minimum without food.

PET (Polyethylene Terephthalate)

Dear Readers,

This is continuation of my earlier post of Plastics. 

Polyethylene terephthalate (PET) is clear, tough, and shatterproof. It provides a barrier to oxygen, water, and carbon dioxide and is identified with the number 1. 

PET's ability to contain carbon dioxide (carbonation) makes it ideal for use in carbonated soft drink bottles. Take a look at the bottom of your soft drink bottle and you will most likely find a number 1 there. PET is also used to make bottles for water, juice, sports drinks, beer, mouthwash and salad dressing. You can also find it on your food jars for peanut butter, jam, jelly, and pickles as well as in microwavable food trays.

PET is globally recognized as a safe, recyclable packaging material. Numerous tests have created a broad scientific consensus that PET is non-toxic and is a safe material for the storage of food and beverages. It is intended for single use applications; repeated use increases the risk of leaching and bacterial growth. PET plastic is difficult to decontaminate, and proper cleaning requires harmful chemicals. Polyethylene terephthalates may leach carcinogens.

PET plastic is recyclable and about 25% are recycled. The plastic is crushed and then shredded into small flakes which are then reprocessed to make new PET bottles, or spun into polyester fiber. This recycled fiber is used to make textiles such as fleece garments, carpets, stuffing for pillows and life jackets, and similar products.

Products made of #1 (PET) plastic should be recycled but not reused.

For More Details about Plastics Click  Here

Know your Safety Helmet

How does safety helmet protect our head when we fall from height or objects fall on our head?

Safety helmet is intended to protect our head from injuries, caused by falling objects, fall from height or hitting our head against any hard surface. We must know how helmet works to protect our head from above mentioned causes.

Helmet works on simple principles of physics. When an object falls on our head or our head hits on a hard surface, a large force is applied on our head in a very short time. In physics, this phenomena is known as Impulse.

Hence Impulse = Force x Time

Force = Impulse / Time

Pressure = Force / Area

As area increases, effect of pressure reduces. Lastly the chin strap and nape strap plays a crucial role to keep the helmet in position, while we fall from height or during fall of object from height on our head.

As you know , from the above formula, if time increases force will reduce and impact of the hit or fall will be reduced. The anti-concussion tapes (helmet refill) inside the helmet increases the time over which the impulse acts. 

Hence the impact of the hit/fall on our head will be reduced. At the same time the outer rigid shell of the helmet, spreads the force to a larger area instead of allowing the object to hit at a point on our head. Hence the pressure exerted by force is reduced.

Pressure = Force / Area

As area increases, effect of pressure reduces. Lastly the chin strap and nape strap plays a crucial role to keep the helmet in position, while we fall from height or during fall of object from height on our head.

Hence,All the people whose are working at construction sites are advised to wear safety helmet.

Best Quote: Don't Talk about it, Do it. Have a Nice Day

Identification of Plastics By Numbers

Dear Readers,

 

During our daily life Plastics are everywhere. Some are Eco-friendly. At the bottom of most plastic containers you can find a small number inside the three arrow triangle recycling symbol and indicates the type of resin used to produce the plastic. The little number inside the triangle tells the real story and gives the information about the recycling which ranges from one to seven Sometimes below the numbers you also find the abbreviations for the plastic type (PETE, HDPE, etc.). The most widely accepted plastics for recycling are number is 1 and 2.

 

 

Code#1-PET (Polyethylene Terephthalate) PET is one of the most commonly used plastics in consumer products, and is found in most water and pop bottles, and some packaging. Products made of #1 (PET) plastic should be recycled but not reused.

Code#2-HDPE (High-Density Polyethylene) HDPE plastic is the stiff plastic used to make milk jugs, detergent and oil bottles, toys, and some plastic bags. Products made of #2 HDPE are reusable and recyclable.

Code#3 - PVC (Polyvinyl Chloride) PVC is a soft, flexible plastic, It is commonly used to make window frames, garden hoses, arbores, raised beds and to make plastic pipes and parts for plumbing. Products made using PVC plastic are not recyclable.

Code#4 - LDPE (Low-Density Polyethylene) The plastic grocery bags used in most stores today are made using LDPE plastic. Products made using LDPE plastic are reusable, but not always recyclable.

Code#5 - PP (Polypropylene) Polypropylene plastic is tough and lightweight, and has excellent heat-resistance qualities. PP is considered safe for reuse.

Code#6 - PS (Polystyrene) Polystyrene is  lightweight and easily-formed plastic with a wide variety of uses. It is most often used to make disposable Styrofoam drinking cups, Recycling is not widely available for polystyrene products.

Code#7 - Other (BPA, Polycarbonate and LEXAN) The #7 category was designed as a catch-all for polycarbonate (PC) and “other” plastics, so reuse and recycling protocols are not standardized within this category.

 

Best Quote. Never leave that till tomorrow which you can do today. Have a Nice Day.

Classification of Fire

Dear Readers,

Fires are classified into 5 groups:

CLASS A: Class A fires involve common combustibles such as wood, paper, cloth, rubber, trash and plastics.

 

CLASS B: Class B fires involve flammable liquids' gases, solvents, oil, gasoline, paint, lacquers, tars and other synthetic or oil-based products.

 

CLASS C: Class C fires involve energized electrical equipment, such as wiring, controls, motors, data processing panels or appliances.

 

CLASS D: Class D fires involve combustible metals such as magnesium and sodium.

CLASS K: Class K fires involve combustible cooking media such as oils and grease commonly found in commercial kitchens.

 

For More Details about Car A/c safety Click CAR

For More Details about LPG cylinders Expirey date Click LPG

Best Quote."Coming together is a beginning; keeping together is progress; working together is success". Have a Nice Day

CAR A/C

Do You Know? Do not turn on A/C immediately as soon as you enter Your .... CAR!

Please open the windows after you enter your car and do not turn ON the air-conditioning immediately. According to a research done, the car dashboard, sofa, air freshener emits Benzene, a Cancer causing toxin (carcinogen- take note of the heated plastic smell in your car). In addition to causing cancer, it poisons your bones, causes anemia, and reduces white blood cells. Prolonged exposure will cause Leukemia, increasing the risk of cancer may also cause miscarriage.

Acceptable Benzene level indoors is 50 mg per sq. ft. A car parked indoors with the windows closed will contain 400-800 mg of Benzene. If parked outdoors under the sun at a temperature above 60 degrees F, the Benzene level goes up to 2000-4000 mg, 40 times the acceptable level... & the people inside the car will inevitably inhale an excess amount of the toxins.

It is recommended that you open the windows and door to give time for the interior to air out before you enter. Benzene is a toxin that affects your kidney and liver, and is very difficult for your body to expel this toxic stuff.

"When someone shares something of value with you and you benefit from it, you have a moral obligation to share it with others"

LPG Gas Cylinder's Expirey Date

WISH YOU A HAPPY NATIONAL SAFETY DAY (4th MARCH 2010)


Have U ever heard about LPG gas cylinder's expiry date....!!

Expired Cylinders are not safe for use and may cause accidents. In this regard please be cautious at the time of accepting any LPG cylinder from the Agency.

Here is how we can check the expiry of LPG cylinders:

On one of three side stems of the cylinder, the expiry date is coded alpha numerically as follows A or B or C or D and some two digit number following this e.g. D06.

The alphabets stand for quarters -

1. A for March (First Qtr),

2. B for June (Second Qtr),

3. C for Sept (Third Qtr),

4. D for December (Fourth Qtr).

The digits stand for the year till it is valid.

For Example Please see the Image below

Expired Cylinder Image

Hence D06 would mean Fourth quarter of 2006. Please Return Back the Cylinder that you get with an Expired Date, they are prone to Leak and other Hazardous accidents .......

Valid Cylinder Image

The second example with D13 allows the cylinder to be in use until December2013.