Tag: fire

A Possible Cause of Power Bank Fires

A power bank charging a mobile phone
A power bank charging a mobile phone. Pic: source

Given the random exploding or catching of fire of power banks on flights, airlines have either banned or restricted the carrying of power banks to hand luggage only.

According to an interesting article by Andrew Hirst in 2021, there were about 340 lithium battery related incidents on flights (presumably in the US only?) between January 2006 and August 2021.

I read a dozen or more random articles around this. Almost all of them ranged the causative factors from poor quality battery packs, to pressurized cabins on aircraft, to the possibility of the power bank getting dropped, damaged or crushed by luggage contents or by any heavy weight placed over them, as possible reasons.

However, I could not find one possibility on any of those articles.
Could users be plugging the power bank’s cord back into itself for convenience when traveling?

Based on the little reading I did on the matter, power banks have an operating range of around 3.7-4.2 Volts.
However, mobile phones need 5V to be charged. So when you plug your power bank to charge your phone, the power bank’s circuitry boosts that 3.7 odd Volts to 5V, also causing an energy-loss of 10-15%.

In theory, this also means that if you connected both ends of the cord to the power bank, while it would charge and discharge itself, due to the energy loss, it would discharge itself soon.

However, until that happens, I would assume that the 5V output voltage going back in the lower volt input, could cause its temperature to increase? Ever plugged a 120V product into a 240V outlet and seen smoke come out of the adapter?
Could that be a cause of the instances when power banks catch fire on flights? Perhaps in a work or home environment, users might not be as particular about the free end of the power cord as much as when they travel and would like the cord to still be with the power bank, wherever the their luggage the power bank might end up being shuffled around to.

Because if that is the case, it might simplify airline restrictions and checking to some extent, and the airline (and public service messages) could simply ask people not to plug both ends of the cord into the power bank when it is not in use.

Does Your Fire Escape Plan Work?

Does Your Fire Escape Plan Work?

Early hours of 29th December saw a horrific fire at a rooftop restaurant in Mumbai. I could hear a continuous stream of distant sirens just before going to sleep. I couldn’t have imagined the extent of death and destruction. The restaurant is a breezy rooftop one, with plenty of bamboo and plastic on the premises. And the staff, towards making the experience more memorable, had a fireworks show on. A possibly illegal structure. A common, narrow exit for 3 restaurants. The result, 15 dead, including a girl who was there to celebrate her birthday. A very tragic, and avoidable mistake.

Many of those who died, were huddled up in the bathroom, after having mistaken it for the exit.

While the media was quick to blame the owners and management, it seemed like the municipal corporation managed to slip out of the spotlight. They are responsible for enforcing safe design, entry/exit criteria, and even ensuring collective safety of an area, as they have a birds eye view of it. However, I have seen numerous restaurants and bars over the years, springing up right next to each other in this seemingly haphazard layout. And as per different sources, many of the establishments are illegal.

A social media friend of mine had a great idea of having Google encourage users to share the Fire Exit plan of establishments and hotels, so that those planning to visit can get a sense of  the exit strategy beforehand.

While it would certainly help, I think establishments need to rethink their Fire Exit Plans themselves. Over the years, at several places, I have seen Fire Escape Plans stuck upside down at premises.

While I was pretty savvy with survey maps in school, an earlier role of mine involved numerous meetings in sprawling industrial areas, and I’d use their map to navigate from company to company located there. And whenever I had colleagues with me, I saw how they struggled to understand and guide me while I drove around. And these were amazingly clear maps that I felt one could figure out, no matter from which direction they looked at it. If those were tough to understand, imagine expecting someone to try to understand a floor plan in the urgency of a burning building.

This is what an average Fire Escape or Floor Layout plan looks like.

Image: source

However, maps need to be better designed to serve the purpose of guiding people both in normal times, and in emergencies.

Which means, the layouts need to be layered, using appropriate colours, to allow for prioritized access of important information. How this can be done, is by using a slightly lighter (possibly grey) colour for the more detailed schematics, and bright colours and simpler steps to direct people in an emergency.

For instance, let’s consider the following map.

Image: source

This is the kind of floor/escape plan you see at many places. However, it can be extremely confusing to understand in the panic of an emergency. These plans are on walls to serve a purpose, emergency exit! Which means, users don’t need so much information. A map must offer the entire schematic in a slightly light colour. This way, in regular times, people can take a moment to stand close and figure their way out. Bright colours should highlight the shortest paths to be taken in emergencies. And this information should stand out in a glimpse. And maps should be customized for each section of every floor. That way, such important information should be rapidly accessible when the need arises.

For smaller establishments, a map near the entrance will give people an idea about available exits, as they walk in.

The objective should be for information to come out in stages, depending on the urgency. For those in a hurry, just the fire exit. For those working in their way around, a few more moments to understand the layout.

Restaurants in the area were quick to bounce back after this incident. Hopefully the tragedy will remind businesses to put people before profit.

On reading this post, Dr. Patell, a great buddy of mine, sent me some valid points that could really save lives, if factored in. Here they are:

A few thoughts on Fire Safety in view of the recent fire in pubs/restaurants. From what I have read or seen on TV fires in pubs/discos are disastrous all over the world because of the numbers packed into the area, compounded by the fact that these P/D tend to restrict entry/exits to prevent gate crashing. This itself is a deterrent to rapid exodus in case of an incident. In the recent fire what was observed was the following:
a) A very narrow Fire Exit passage leading quite a distance to the fire escape door
b) Mistaken entry into toilet door as a possible escape route
c) A fortunate door separating two areas which was locked
My thoughts firstly on these three:
a) I do not know if there is any norm for distance to the actual Fire Exit to the width of the passage. In my opinion, if the passage is about 20 ft long, from the door of the premises to the actual Fire escape then the width should be at least 25 to 30 % or say at least 5 to 6 ft wide. The door at the end of this passage must be equally wide to avoid interruption in the flow of people. This is perhaps utopian, but can there really be adequate exit for say 300 to 400 persons being packed into the P/D. One must also consider that many of these are on higher floors of a building. Such long passages must be avoided and in the planning the Fire Exit must be as near as possible. Additional Exit at the other end on large premises must also be provided.
b) Here also the following may be considered. The door is usually labelled Gents/ Ladies Perhaps an additional board, in luminescent sign, saying NO EXIT could perhaps help in not mistaking the door in an emergency.
c) Where there is fortunately a door separating two areas, which are independent of each other, this must be kept accessible in case of emergency. If, for security reasons this needs to be locked to prevent unauthorised entry, the following could perhaps be thought of as a possible solution. The door should be locked by a key lock. Both sides should place one key in a small box with a glass front, as is used for the fire alarm. In case of emergency, the glass is broken, the key accessed and the door opened. Of course, there will always be apprehension, that this may be misused. Now several systems are available where an alarm sounds once the contact is broken on opening the door. This could be placed on either side.
These are possibilities for what came to mind on seeing the tragedy. The very main systems for such establishments do not seem to have been in place. Were there smoke alarm systems, what about a well designed sprinkler system. The pyrotechnic display would have triggered the system and hence may have been avoided. Was there adequate water supply storage for such sprinkler systems. Portable fire fighting systems, and were the staff trained to use them, or were their skills only tossing booze bottles. Has any authority calculated, how many persons would be in each restaurant at any given time including peak occasions. Are systems in place to a) take care of one such establishment and b) all in that particular area. I am sure there are experts in this field, who could advise. But ultimately their advise must be scrupulously followed.


Look forward to your views. And if you liked this one, consider following/subscribing to my blog (top right of the page). You can also connect with me on LinkedIn and on Twitter.

China – The Punishment Due

China – The Punishment Due

Mr. Xi Jinping
Chairman of the Central Military Commission
People’s Republic of China
Indian politicians have always been soft about matters regarding our country’s borders. You however, should not for a moment, think their encroachments will go unchallenged. Or that our army doesn’t stand a chance.
The Beating Retreat ceremony that happens at our Attari (and Wagah in Pakistan) border should give them some perspective. Look it up online.
The soul-piercing eyes of our Border Security Forces. The fire, the bravery and the love for the country. It isn’t something that can be copied or manufactured like everything else China is notorious for. These traits are inherent. What’s more, that border ceremony is a tradition of brotherhood and cooperation. Imagine dealing with them in the event of a war.
Image: source
So, if Chinese border infiltration continue, surely our politicians will bumble around for a long time. Trying hard to imagine the problem doesn’t exist. Or hoping to push it under the carpet for another government of the future to deal with. But the day one of them decides to take action, and that day will come, I’d hate to think of the plight of those facing the wrath of our armed forces.
In all the wars India has ever fought, it has never been on the offensive. Never once have we, unprovoked, attacked another country. And that should tell the world everything it needs to know that we as a country, hate war more than any other country on earth does.
But there is one thing we hate far more, and do not tolerate. And that is, outsiders encroaching on our land.
It is another, and rather unfortunate matter, that all our politicians since independence, have not reflected the necessary concern for our borders and our people who live near it. But, it would be foolish to continue to push your luck, using the Sino-Indian war as a yardstick to compare powers. Back then, we were a young, relatively unaware, 13-year old country post-independence. If you really need proof of our military prowess, look no further than the Battle of Longewala of 1971. It remains, among the only battles in the history of the world, where an unimaginably outnumbered army faction held on, and won. That, is the Indian defense forces for you.
In the hope that you come to your senses soon, and for your own sake.
Megadeth performing ‘Holy Wars… The Punishment Due’. Hammersmith Odeon. 1992.
Look forward to your views. And if you liked this one, consider following/subscribing to my blog (top right of the page). You can also connect with me on LinkedIn and on Twitter.

The Determining Fire

ITBP - Women contingent

Image: source

The Determining Fire

Late on 15th night, I read a news piece about 500 trained women personnel of the Indo-Tibetan Border Police (ITBP) being the first women contingent to be deployed in high-altitude posts along the India-China border. I was thrilled.

However, I’m also sure many may have asked, ‘would they be able to handle it’; or, ‘can they meet the grueling job expectations? Especially given the conditions, where even their physically stronger male counterparts sometimes find it tough’?

Well, there are capable people, okay ones, and damn good ones, both men and women. On the corporate side, I’ve seen a fair share of men and women who’re below average at their jobs, and those who are really exceptional too.

What makes some truly exceptional, I have come to learn, has a lot to do with the distance they’ve covered, and the resistance they’ve overcome, to get to where they are. Often, it’s also what drives them to go even further.

We all know that both distance and resistance are overcome by sacrifices. Sacrifice being the screening fire. Those who have been through it, come through on the other side with something extra. All they then need to do, is fight complacency.

An incident comes to mind. My office building has good security. Friends, clients and acquaintances who have come to meet me there have always mentioned it. From visitors needing to register at the reception, a picture taken, a gate pass issued, security at the turnstiles, and acknowledgement on the gate pass from the office you’re visiting.

As I entered the building sometime last year, I realized I’d forgotten my access card. A male and female security personnel were at the turnstiles. Many of them are on rotational shifts, and I’m not a particularly regular face there, so they don’t always remember me.

Now anyone working in India knows how we deal with things like forgotten access cards. Many people even know how to deal with breaking laws and rules the same way. Saying it’s a one-time mistake, it happens, everyone else is doing it, and so on.

Anyway, I walked right to the turnstile, and told the chap to let me pass, telling him which floor I worked on. And that he could call and check with my office. He agreed without any hesitation, and was just about to swipe his card to let me pass, when the lady security personnel who was quietly watching us, stopped him. She politely expressed her reluctance to allow it, requested me to go to the reception and get a guest pass.

By this time, I was beaming with admiration. Because, funny as it is, in our country, it is rare that someone sticks to a rule, a law, a process; and not because they’re scared or feel pressured, but because they understand them and their responsibility towards enforcing them. And this lady wasn’t the least bit scared or confused. I know the difference.

In many situations, people bypass such rules or even the law with a little pat on the shoulder, a little bribe here, a nonchalant ‘chalta hai yaar’ there, and so on. But not this lady.She was polite, but was in no uncertain terms, following the procedure, and simply expected me to too.

How often do we stop at a red signal light when the streets are empty? And if we do, how often do we still jump the light if someone behind us honks, or other cars drive past without waiting? How frequently does name-dropping happen, or do we feel entitled without having earned something? How often do we throw our weight on people who stand no chance of defending against it? Do waiters, security, small shop employees, and peons among others, come to mind?

The lady security personnel is one of those concerningly rare individuals we have in our country today, who isn’t afraid, or doesn’t feel awkward about being fully responsible for what she’s been entrusted with. Now all we need are more such people. Many, many more.

The ITBP women, as indicated by the news itself, are the first women contingent ever. Which means there’s a mountain of ice and glass they’ve already overcome to be where they are today. It is also why would they be just as strong, if not far stronger, and more effective than their male counterparts who’ve been guarding that region till date.

Koi shuck?


Look forward to your views. And if you liked this one, consider following/subscribing to my blog (top right of the page). You can also connect with me on LinkedIn and on Twitter.

%d bloggers like this: