1 Safety1.3.1. Safety signals in the manual393HAC022033-001 Revision: K© Copyright 2004-2011 ABB. All rights reserved.1.3 Safety related instructions1.3.1. Safety signals in the manualIntroduction to safety signalsThis section specifies all dangers that can arise when doing the work described in this manual.Each danger consists of:• A caption specifying the danger level (DANGER, WARNING, or CAUTION) and thetype of danger.• A brief description of what will happen if the operator/service personnel do noteliminate the danger.• Instruction about how to eliminate danger to simplify doing the work.Danger levelsThe table below defines the captions specifying the danger levels used throughout thismanual.Symbol Designation SignificancedangerDANGER Warns that an accident will occur if the instructionsare not followed, resulting in a serious or fatal injuryand/or severe damage to the product. It applies towarnings that apply to danger with, for example,contact with high voltage electrical units, explosionor fire risk, risk of poisonous gases, risk of crushing,impact, fall from height, and so on.warningWARNING Warns that an accident may occur if the instructionsare not followed that can lead to serious injury,possibly fatal, and/or great damage to the product. Itapplies to warnings that apply to danger with, forexample, contact with high voltage electrical units,explosion or fire risk, risk of poisonous gases, risk ofcrushing, impact, fall from height, etc.Electrical shockELECTRICALSHOCKWarns for electrical hazards which could result insevere personal injury or death.cautionCAUTION Warns that an accident may occur if the instructionsare not followed that can result in injury and/ordamage to the product. It also applies to warnings ofrisks that include burns, eye injury, skin injury,hearing damage, crushing or slipping, tripping,impact, fall from height, etc. Furthermore, it appliesto warnings that include function requirements whenfitting and removing equipment where there is a riskof damaging the product or causing a breakdown.Continues on next page工控帮助教小舒QQ2823408167长沙工控帮教育科技有限公司