What Most Techs Get Wrong About Wire Sizing | 2017-09-18 | Circuit Breaker Parts

Good call, light bulbs and heating elements don’t need perfect smooth precise 12vDC, as long as it’s in the ball park you’re good.

I had my poke. Mostly people saying “may” or “could” invalidate your insurance and advising caution. Which is sensible enough. Also mention of laws mandating a professional installing things like new wiring for cookers, and other kitchen / bathroom stuff. Makes sense since there’s water about. This is the UK that I looked up, since that’s where I live. Our electrical standards are pretty high, mandatory ring mains, limits on spurs and wiring length, and even our mains plugs have half a dozen safety features built in (protection against the agony of accidentally stepping on one not included).

No, Britlish, which is some modern bastard concoction. It’s well known that we in the colonies (American, that is) speak English that’s closer to the “original” than what the British warp the air with.

Xiaomi has announced the Mi Mix 3, the latest entry in its series of full-screen flagship phones. It’s yet another high-end Chinese device with a huge screen-to-body ratio achieved by hiding the front-facing cameras on a sliding mechanism — no notch required. Unlike the Vivo Nex or Oppo Find X, however, the slider isn’t powered by motors. CEO Lei Jun compares the design to older sliding phones and suggests that it’ll be relaxing just to play with.

厦门仲鑫达自动化设备有限公司是一家专业从事全球知名品牌（DCS系统）（机器人系统）（大型伺服控制系统）模块 备件销售,公司产品内容为分布式控制系统(DCS) 、可编程序控制器(PLC)、 MOTOROLA MVME工业用模组 、工业控制通訊转换器(Anybus) 、远端输出/输入模块(RTU) 、工业电脑(IPC)、 工业用低頻萤幕(IPC) 、人机界面SCSI(50、68、80Pin) AnyBus(Gateway)现已成一家全球性的工业自动化备件及零部件的销售企业。

While room up front is generous, and boosted by a wide range of seat and steering wheel adjustment, rear knee and head space is tight. Toyota openly admits it has designed the car predominantly around the needs of a two-person family unit, reasoning that anyone with kids would buy the estate. Exaggerating that outlook, our test car was fitted with an optional sunroof that ate 22mm of headroom.

This seems to me that your experiment failed due to thermal failure cased by insufficient cooling and not the part itself..You stated yourself that the part failed due to thermal expansion (insufficient cooling). But it’s still a valid experiment with valid results. And you show that it’s up to the designer (or designers) to design the entire product, which includes sufficient cooling. This is one area where home designs fail – a lot.

110/220 is the load rating and 120/240 is what the circuit provides. The voltage could sag as low as 110 or 220 in use.

Wrong again – The VOLT from the very first had a choice of 8 or 12 – it just wasn’t from the touch screen in the car in the first 2 years, it was a button on their ‘charger cord’. And there was no ‘default’. Unlike later cars such as my ELR and BOLT that must be constantly changed to 12 amps on L1 (yes, I know about zip code based charging on the bolt), my 2011 VOLT would stay at the setting you left it at since it was stored in the EVSE, NOT the car.

There is a lot there, but here are two highlights that directly apply to you as an HVACR professional. This comes from the 2017 edition of the NEC NFPA 70.

Your friend died of what and why? Testing mains voltage across the back of his hand? Please. Mains voltage is not scary if you know what you are about. I dealt with volts up to 132KV and mega amps and megawatts in my career I worked in the UK electrical power industry.

Translucent mirror (redux). As noted previously, adopting a translucent mirror design has allowed Sony important benefits in terms of autofocus, burst shooting, and body size, and conceivably the removal of one more mechanical component could improve camera reliability, as well. There’s no such thing as a free lunch, though, and the translucent mirror design does have some clear disadvantages as compared to existing SLR and SLD designs. Perhaps most significantly, light entering the lens is shared between the autofocus and image sensors at a fixed ratio. In the Sony A33, about 70% of the light makes it to the imaging sensor, while 30% is reflected to the autofocus module. With a traditional SLR, all the incoming light arrives at the image sensor once the mirror is raised, and the same is true of an SLD camera whenever its shutter is open. With less light arriving at the sensor for an equivalent aperture, a translucent mirror camera must either lower its shutter speed, raise its sensitivity (and along with this, the levels of noise, or the amount processing to mitigate it), or some combination of both. An increase in sensor gain to compensate for the loss may explain why we see slightly higher noise levels from the A33 versus the A560, which share the same sensor.