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List: trawlers@lists.trawlering.com
From: Scott H.E. Welch
 
Re: T&T: seeking small AC panel
Thu, Apr 24, 2008 5:27 PM
"Butch Dalton" writes: >I need a small (3-4 breakers) AC sub-panel for my inverter installation. Does >anyone know of an inexpensive source, perhaps even salvaged? Better yet, does >anyone have one laying around the boat they'd like to sell? Thanks in >advance! Sorry for the delay. I know it's not "yotty" but have you considered a small Square D panel from Home Depot? That's what I used on Island Eagle, and it's what every fishboat around uses. I used these ones:http://tinyurl.com/6c7vyn Here's a picture: http://www.islandeagle.net/systems/0003D2D0-008583DB.14/P8210378.jpg Scott Welch FirstClass Product Manager www.firstclass.com Those who make no mistakes rarely make anything.
List: trawlers@lists.trawlering.com
From: Scott H.E. Welch
 
Re: T&T: seeking small AC panel
Thu, Apr 24, 2008 7:13 PM
"Arild Jensen" <2elnav@netbistro.com> writes: >Nice workmanship Scott. >However, there is a reason why home depot type products are NOT approved for >marine use. >In the first place the wire terminations are designed for solid wire not >stranded wire. >secondly many of the busbars are plated not solid copper that is tinned. >Plated bus bars and connectors tend to "grow corrosion" which in turn >creates hot spots over time. All of the wiring on Island Eagle is terminated with plated crimp-on connectors. By the way, this comment applies equally to the outlets we use on boats, and everyone uses land-based ones there. > >Land based wiring is usually in less moist environments and thus escape th >eworst ravages of this corosion growth. All I can say is that the panels I replaced were also Square D, and they were 40 years old and working just fine. > >Home Depot breakers are purely thermal and derate drastically with high >ambient temperatures such as you might find in a typical boat. Ambient temperature in my engine room is rarely above 100F. > >I admit a careful and conscientious person can make home depot type hardware >work safely but how expensive can a 4 circuit Blue Sea panel be? Is it >really worth it making a non marine grade installtion for the sake of saving >a few bucks? >There are so many surplus stores and marine flea markets around these days. It's not just a question of expense (you may have noticed that I did in fact use Blue Sea equipment on my entire DC system). The Square D panels are much better for surface-mount wiring. Plus, it's much easier to install strain reliefs. I reiterate my recommendation. For a small AC panel, I would put in a Square D. Scott Welch FirstClass Product Manager www.firstclass.com Those who make no mistakes rarely make anything.
List: trawlers@lists.trawlering.com
From: Scott H.E. Welch
 
Re: T&T: Beware: Aqualarm "Heavy Duty" Bilge Pump Switch
Sun, Apr 27, 2008 4:22 PM
ghechtman@aol.com writes: >Are Rodger and I missing something or is this (and Aqualarm Inc) the piece >ofe ----- I think it is? I was going to spring for their water flow sensors, >obut can't take that risk after this experience >Please someone tell us we are missing somethng! The vendor already has >assign ed us kite flying duties. My two cents: one of the first things I installed on Island Eagle (she's wooden) was a high bilge water alarm with a big, loud red firebell. I used an Aqualarm switch (not a knockoff) because they claimed a lifetime warranty. I mounted the switch about 2 inches higher than the one for the primary bilge pump. About 2 years later, on one of my first trips (it was a long refit) I had to dock the boat on a particularly tough location -- backing down a narrow channel the slipping into the berth. With 60 feet, a single screw and no thruster, this was, ummm, "exciting". I was pretty keyed-up. I had just tied up at the dock when the high water alarm went off with no warning at all. I just about pooped my pants. Of course there were about 20 people standing around around watching. I tore down to the ER and discovered that through a series of unrelated events both the primary and secondary bilge pumps had failed. I got them going within a minute, but the alarm did not go off when the water went down! It seems that the alarm switch had failed in the "on" position. No matter what I did I could not get the alarm to go off. Finally, I pulled the fuse and mercifully it went quiet. I later removed the offending switch and found that nothing I could do would make it turn off. Lessons learned: 1) Do not use the Aqualarm switches. First, they can and will fail. However, the worse problem is that they are sealed and therefor very hard to test. I now use regular float switches, and one of my normal inspection points is to reach down into the bilge and lift each one up and make sure that the pump (or alarm) goes on as expected. I keep a wooden yardstick with a pin on the end so I don't even need to put my arm down in the bilge. 2) Install a bilge pump monitor at the helm. I can now see which pumps run and when, and there is a built-in alarm if the pump runs for more then the specified time. I used this one from BEP: http://tinyurl.com/4rtdmh 3) Install a cut-off switch on all alarms. It's bad enough trying to fix a problem in a rush, having a 100 db alarm bell in your ears does not help your concentration. 4) Install bilge pump counters so you know how often your bilge pumps run. 5) Put manual override switches on all bilge pumps so you can both turn them off if the switch fails "on" and turn them on if the switch fails "off". Scott Welch FirstClass Product Manager www.firstclass.com Those who make no mistakes rarely make anything.
List: trawlers@lists.trawlering.com
From: Scott H.E. Welch
 
Re: T&T: Fog Horn Frequency
Tue, May 6, 2008 10:36 PM
Troy Leek writes: >Recently I purchased a new VHF that has a built in hailer and fog horn. It >hacs >adjustable frequency of 200-850HZ for the fog horn. My question is where can >aI >find the correct frequency for my boat? I have looked in the manual and >onlinte >with no luck. Thanks!! Good question. I looked this up a while ago (I put a train horn on my boat and it's not compliant). See http://www.stormy.ca/marine/colregs/annex3.htm Scott Welch FirstClass Product Manager www.firstclass.com Those who make no mistakes rarely make anything.
List: trawlers@lists.trawlering.com
From: Scott H.E. Welch
 
Re: T&T: Fuel, Victoria, BC
Sun, May 25, 2008 1:29 AM
David Mellor writes: >Diesel price today at Van Isle Marina, Sidney, BC, (PNW) is approx. >US$5.50/USgal. Just an FYI: If you need to fill up in the Victoria area, by far the best deal is at Jones Marine Services in Chemainus, BC. Phone is 604-669-3900. When I filled my tanks last fall (roughly 5000 litres) they were 15% less expensive than the closest competitor. It's where most of the tugs and commercial vessels fill up. In fact, I only discovered this place from a friend who is a commercial captain, it's tucked away where you would never find it. By the way, they also sell bulk Rotella straight 40 weight lube oil, useful if you have an old Detroit Diesel like my 6-110. No connection, etc. Scott Welch FirstClass Product Manager www.firstclass.com Those who make no mistakes rarely make anything.
List: trawlers@lists.trawlering.com
From: Scott H.E. Welch
 
Re: T&T: genset auto start
Mon, Jun 9, 2008 2:35 PM
Robert STRAGHAN writes: >I have a Northern Lights genset and want it to auto start/stop when the >batteries reach a pre-determined level of discharge. I recall reading that >Dave on Swan Song has such a system, but NL cannot supply. > >Any recommendations on what to use and where to buy? This is usually controlled by the inverter. Dave has the same ones I do, Trace SW4024. These have an output that can be used for automatic generator control. Scott Welch FirstClass Product Manager www.firstclass.com Those who make no mistakes rarely make anything.
List: trawlers@lists.trawlering.com
From: Scott H.E. Welch
 
Re: T&T: USCG too-late esponse
Mon, Jun 16, 2008 4:31 PM
>Bottom line: despite the CPR-givers statement early on that there was foam >from the mouth and blood from the nose and no vital signs, it took ONE HOUR >for the helo to arrive. We were incredulous that it could take so long. You know, further to my previous post about the North West Passage... I hate to be heretical, but one hour seems pretty fast to me. In fact, that they came at all seems pretty fabulous. When you are out on the water, you really have to be prepared to deal with the situation on your own. It might sound harsh, but death by misadventure is a harsh thing. We don't have the resources to save every single person who does something stupid. Yes, it would be fabulous if we had somebody there to help us every time we ****ed up, but we can't always have that. Perhaps there is another way we could approach this, and that's to ask "What's the moral of this story"? I hate to sound like Mike, always harping about this, but the best lessons you are going to learn are by observing someone else's mistakes. Here are a few observations, right off the top of my head: 1) First dive after certification? Let's do it off the dock instead of from a boat. And even if it's not at the dock, should we really be 38 (!!!) miles out? 2) Five guys in the water? Odd numbers are bad. Let's take it two at a time, and have a buddy right beside the newbie. Also, 5 guys in the water meant that the boat operator could not pick the newbie up because he was afraid of hitting the other guys. 3) Adult male taken Vital Signs Absent and not breathing from warm water? With foam from the mouth and blood from the nose? Probably already gone. A copter's not going to help. So what are the lessons? 1) Do a thorough risk analysis of the situation before you set off. If you might need help, stay close to where the help is. 2) If you have a new diver, only let the new diver and his buddy into the water (and make sure the buddy is experienced). 3) Keep a line on the newbie's wrist for the first few dives, so he can get back to the boat easily. In my time up north, we did over 1000 under-ice dives without a single incident, and that's partially because on every single one of those dives the diver was tethered and there was a human tending the line. 4) Make sure that every diver reads "Shadow Divers" by Robert Kurson. Especially the part where the divers die. Just because you can get certified in a few hours doesn't mean that it's not dangerous. Just my two cents. And by the way, don't you find it interesting that you never hear people proposing higher taxes to pay for increased Coast Guard coverage? Scott Welch FirstClass Product Manager www.firstclass.com Those who make no mistakes rarely make anything.
List: trawlers@lists.trawlering.com
From: Scott H.E. Welch
 
Re: T&T: US Foreign Clearance Procedures
Thu, Jul 10, 2008 6:55 PM
Mike Maurice writes: >3. When asked by US Customs personnel, don't lie or even fudge about the >circumstances of the entry or clearance. Further to this, here are some facts you might want to consider. I'm not a lawyer, but I am a non-US citizen who crosses the US border between 25 and 50 times a year. Fact 1: US Customs has the right to refuse anybody at the border, at any time, for any reason they see fit. Fact 2: Lying to a US Customs officer is a federal offence. Fact 3: One of the question often asked is "Have you ever been refused entry to the US". If you answer "yes" to that question, be prepared for unpleasantness. And if you answer "no" but have in fact been refused in the past, they *will* find out. There is no way to "erase" an entry refusal, and there is no appeal. And don't forget Fact 2. The long and short of this is that before you get up to any monkey business with US Customs, you want to ask yourself "Do I really want to be hassled every time I cross the border, for the rest of my life?". And for those of you who do find yourself in a pickle, do *everything possible* to beat a hasty retreat without being "refused" entry. I have twice found myself in the situation where the vehicle I was driving was turned back, once because a passenger (unknown to me) had a criminal record and the other because my girlfriend at the time was Australian and had forgotten her passport. In both cases we were able to simply turn around without being officially "refused". Scott Welch FirstClass Product Manager www.firstclass.com Those who make no mistakes rarely make anything.
List: trawlers@lists.trawlering.com
From: Scott H.E. Welch
 
Re: T&T: Shore Power and Electricity Concepts (LONG POST - was "Power Cords")
Wed, Jul 30, 2008 3:08 PM
"Jim Healy" writes: >An interesting theoretical observation is that with >only 115V loads distributed equally (balanced) across both sides of the >center tap, you may actually have no current flowing in the neutral at all. >The Neutral provides the circuit's reference voltage, but all of the current >flows only in L1 and L2. The more unbalanced the loads, the more current >flows in the neutral. Ag Jim, An excellent post. I have a few other notes that may be of interest: 1) The non-theoretical corollary is that if you have a high-resistance neutral and an unbalanced load, the practical effect will be to raise the voltage on the low-load leg and lower the voltage on the high-load leg. In plain english, if you notice that when a heavy load (e.g. a fridge) starts up some of your lights get *brighter* not dimmer, then you should get to work right away looking for a loose/dirty/missing neutral connection. 2) While three phase power is unusual on most boats, it does exist. When I bought my boat, it had a three-phase 20 KW generator, which fed a three-phase panel. The shore power cable was 50A, 120 volt, single phase. The shore power switch fed 120 V into each of the three-phase legs. The genset was the first thing I took out of the boat, followed by the panel. I now have a nice, normal 6KW generator and a nice, normal 30A 120V cable. 3) For those of you heading north to British Columbia and Alaska, talk of higher amperages is mostly theoretical. At most docks you are lucky to get 30 Amp 120 Volt, and at many docks you get 20 Amp. I've been at several with 15 Amp. Make sure you carry adapters, and make sure you can set your input loads. Scott Welch FirstClass Product Manager www.firstclass.com Those who make no mistakes rarely make anything.
List: trawlers@lists.trawlering.com
From: Scott H.E. Welch
 
Re: T&T: Custom Gauge/Electrical Panels
Thu, Jul 31, 2008 1:21 AM
"Tom Manning" writes: >I remember a company that had a design your own panel on the internet, >I thought it was Paneltronics, but their website does not show that. That would be Front Panel Express (http://www.frontpanelexpress.com/) No connection except as a satisfied customer. Scott Welch FirstClass Product Manager www.firstclass.com Those who make no mistakes rarely make anything.