WebThe industry recognizes three types of circuit breakers— molded-case circuit breakers (MCCB), insulated-case circuit breakers (ICCB) and low voltage power circuit breakers LVPCB). Insulated-case circuit breakers are designed to meet the standards for molded-case circuit breakers. Low voltage power circuit breakers comply with the WebArticle 240.85 of NEC-2011 requires circuit breakers have a straight voltage rating (e.g. 480V) for these three situations. Slash ratings (e.g. 480/277V) are only intended for …
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WebMar 27, 2024 · Diamond color chart Clarity A diamond’s clarity grade evaluates how clean a diamond is from both inclusions and blemishes. Clarity is graded by the GIA on the following diamond clarity chart: FL (Flawless) IF (Internally Flawless) VVS1 (Very, Very Slightly Included 1) VVS2 (Very, Very Slightly Included 2) VS1 (Very Slightly Included 1) WebJan 31, 2024 · Diamond Clarity Grade Chart: FL: Flawless - only about 1% of diamonds fall into this category. IF: Internally Flawless - tiny surface blemishes that are visible under 10x magnification. VVS1 VVS2: Very … portable jewelry holder
120/240 vs 240 2-pole breaker Electrician Talk
WebDiamonds can range in size from a fraction of a carat to several carats. Given the rarity of large stones, however, the price increases rapidly with size; therefore, a single 2-carat diamond will cost much more than two 1-carat diamonds. Very large diamonds with good color and clarity are very rare.WebThe Diamond and Diamond Grading eLearning course brings to life the skills needed to grade the color, clarity and cut of diamonds through video, graphics, images and text. Key topics include: The influence of color, clarity, cut and carat on diamond value. Determining proportions and estimating weight. WebColor Clarity Cut Carat The weight or size of a diamond is measured in carats (ct.). One carat weighs 1/5 of a gram and is divided into 100 points, so a diamond weighing 1.07 … irs alternative depreciation system