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Brief Introduction of UL

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Brief introduction of UL

The UL Attestation Introduction


The UL is English underwriter to experiment( Underwriter Laboratories Inc.) Of JIAN3 XIE3.The UL safety experiments is the United States the most authoritative, also is the boundary is engaged in the safety up to experiment and authenticate of bigger and civil organization.It is an independent, not-for-profit, for professional organization that public safety do to experiment.It adopts the test method of science to study certain various material, equip, product, equipments, construct etc. to have degree of have no endanger and endanger to the life, property;Assurance, the plait write, the issue correspond of standard and contribute to reduce and prevent��from result in the life property is subjected to the losing data, openning the exhibition true state of matter investigation business at the same time.In fine, it mainly is engaged in the safe attestation and the management safety certificate businesses of the product, its end purpose is a merchandise that is have the very safe level for the market, the behavior body health and the property safeties get the assurance to make a contribution.In regard to the valid means of the product safe attestation conduct and actions cancellation international trade technique barracks, UL for promote international trade of development also develop the aggressive function.
The UL starts to set up in 1894, the beginning starts the stage UL lord at is provide by the fire prevention insurance section the funds maintenance action, until 1916, UL just complete independence.Through the development of hundred years, the UL has become the attestation organization of have the popularity of world, its oneself has one whole set of tight organization management system, standard development and product attestation procedures.UL from the council management that a representative who has the safe expert, government officials, consumer, educational circles, public utilities, the insurance industry and standard section constitute, daily pursuit from chief executive officer, deputy governor processing.Currently, the UL has five laboratories in the American mainland, the headquarters establishes the Northbrook town in the north of Chicago, establishing the homologous laboratory respectively in Taiwan and Hong Kongs at the same time.

The UL appropriation technical term explain
AL" LISTING, the CLASSIFICATION OR RECOGNITION( many heavy appear on a list or approve)
Put forward the application to combine the authorization from the applicant, with the dissimilarity and applicant( appear on a list the person) of another a the square's name build up of appear on a list or approve the service
AGENT( act for)
Be subjected to the applicant entrust, being engaged in in the name of applicant with the activity between UL of personal or business enterprise
The APPEALS PROCEDURE( report the procedure)
If the customer tests or follows the examination to the engineering to as a result have the different opinion, can with related engineer or the spot representative discussion but need not worry to endanger the later conclusion.If can't get the satisfied reply in this layer, the customer can put forward report toward higher layer, keeping to the chief executive officer. APPENDIX( attach the page)
A part of the detailed regulations, among them include the responsibility of the factory and the spot representative and to the request of the related test.Also may describe the test that send to sample of go toward the UL's do.
APPLICANT( applicant)
Apply for toward the UL as to it's parts, the product or systems carry on the business enterprise of the test or personal.On the law, the expenses that this square will be responsible for the test and follow the service, and to and test of result relevant of all information own the right.Also see the agency.
The AUTHORIZATION PAGE( the authorization page)
The backup is following the service factory examination detailed regulations most before of one page, the on the trail of examination service( L or R) that to authorize to correspond and the attestation marking that allow
The CATEGORY CONTROL NUMBER( CCN)( the category control number)
The UL appears on a list, approve, categorizes the service to mean the form in the character list of the different product category.If the AVLV2 means the electronics line; The QOWZ mean that holds the lamp then.General of, in order to appear on a list the product, the XXXX is in order to approve the product, XXXX2 the XXXX7 means to match the appear on a list of Canadian standard product, the XXXX8 means accredit product of match the Canadian standard.
COMPONENT( zero partses)
Some one part of the product, in addition to being complete part of the product in addition to participating the whole test of product, still need to test its function singly and/ or structure.Zero partses can be to appear on a list, approve or appear on a list the parts not.
The CONDITION OF ACCEPTABILITY( the condition for apply)
These items row is in approve or not appear on a list zero reports of the partses, but don't be the spot representative's examination according to.These item according to the result of the test, marked clearly those zero partses to use with the restrict and the condition of complete product hour.For example, in the report of a certain switch, may at clear that product of" the condition for apply" middle finger only be applicable to the 1 A the following of the temperature of the electric current or the 125 C the following.
The CONTROL NUMBER( the control number)
The UL approve the marking four possibility of constitute one of the parts, specify from the UL.According to the different product category and different and on the trail of service categories, control the number and may periodically change.
The FACTORY IDENTIFICATION( factory marking)
From produces same production of product what company adopt in the different factory some on identifying the marking to use distinguish analyse the some product at which factory produce.
The FACTORY INSPECTION( the factory examination)

The UL applies for the related problem
1. How the UL test service is organize?
The UL the engineering service department presses different product category to be divided into several sections.Its staff member includes the experienced engineer and technique attendant.Check the structure of the product, carry on the test, evaluate the experiment result and draw up the standard is just a part that they work.The UL still includes to the factory to carry on the spot representative of the examination on the scene.The representative of the spot is a product that make take the marking of UL to match the assurance of the standard of UL.

2. Who can deliver to the product?
Product usually from the product manufactory or develop company or the other is through the agency of the authorization, represent etc. the entity deliver to.When you deliver to the product, you can choose to appear in the entity on the catalogue name that the UL publish.( such as manufactory, the business agent or others acquire the permissive entity)Once decision, that name must appear at all satisfy the UL standard and prepare to use the product of the marking of UL up. 3. Should at when deliver to the product? The best delivers to the product in the process of product develop, and more more good early.Usually, the engineer of UL can pass to prepare to check to the product to decide the place that must modify or return the work for you.Though prepare to check and can't replace the complete test of the product also, also can't acquire the usage authorization of the marking of UL, it can economize the expenses for you.Prepare to check can in the whichever laboratory of UL, the UL branch organization or at you carry on productively, and need to be cost only 1-2 weather.( This mainly aims at abroad business enterprise of have the branch organization, as to it's its business enterprise have no actual meaning)4. How to deliver to the product? Can to UL customer the adviser consultation with acquire the help.This business enterprise that applies for the UL to a first time is an importance, because customer's adviser is a conjunction UL and the customer's bridges.The responsibility of customer's adviser include:
1) the answer problem concerning UL, guide the customer right of engineering section. 2) resolve the customer's relevant problem with UL the management section cooperation 3) the first time delivers to the key of the product toward UL according to your convenience, addressing a letter to in the manager of the UL customer's adviser of the American laboratory or the branch organization of other regions.That letter needs to include the in aid of UL of following information to understand your test scope and requests: 4) the description product and the use that it correspond.List all model numbers or categories that deliver to the product, and explain the different product category or a little bit samebetween model number and differentia. 5) list zero partses and materials of havings that product use- include to produce the company, model number, quantity, size, sum to settle to be worth etc.- and whether approve or appear on a list for the UL.For come together the material allly, request to indicate the category of the material, production company, model number( for example:A kind of hot material of ) explain also how they are apply in your product of.If you think to contribute to the design, structure or the work principles that the engineer of UL understands the product, pleasing include to have something to do with product the electric circuit diagram, connecting the line diagram, designing the diagram and/ or product photograph. All manual that provides with the product, the safety hints or installs elucidation and all emergence in the marking on the packing. 6) list all other materials, zero partseses that you plan to use from now on.This can use these materials to reduce to test expenses and times in aftertime for you. 7) provide your representative's name that authorize, should represent will receive with the relevant letter between UL, including the end test report and invoices. Provide the factory and addresses of produce the products.Provide to appear to publish in the UL of correspond the company on the catalogue name.The product should sell in the name of that company.( it can differ from the real production company) 8) indicate should lately product or the renewal product whether with you or other organization of already the UL attestation product contain same structure or characteristics.If that product has already passed the attestation of other attestation organizations, please notify the UL.If the possible UL will make use of your test of the past as far as possible.

5. How does the product test start?
Once the UL acquires all datas that you can provide, the UL can decide from which section to test the product.UL the engineering department will: Draw up the test plan, provide the estimated test expenses, the test be over time that is mostly sends out to apply for the form. at by this time, if you have any time term, you should notify the UL in order to it take into the consideration at the time of arranging the test time.Once the homologous down payment that you returned the written application and provide, and the UL engineer received the homologous test sample, the engineer of UL can start your product of real test. 6. Test end how is future reunion? Once the product test be over, your item the engineer will notify whether your product meets the UL request or not.For meet the product of request of UL, item the engineer will write a report of formality according to the test data plait.The test data also will used for to follow the service combine conduct and actions on the trail of the foundation part of the service detailed regulations. Follow the service detailed regulations is a detailed description was match by the UL test the structure that UL requests the product of document.The UL the spot representative will carry out the periodic UL product examination that carries on in the factory with this document conduct and actions leading. Before the engineer of UL will test the report to send out to you, you must agree the on the trail of service plan of attend the UL.You must pass to sign and return to follow the examination report in token of attend this plan.Usually, this document would several divas who send out in the application form send out. If because a certain reason makes your product not agree with the request of match the UL, the UL will notify each item that you not agree with to match the request.If you choose to change the product and would like to repeat the test also, you can and originally be responsible for the engineer of your item contact to necessity of item carry on re- testing. If you are to the test result, a certain the comprehension or ULs that requests decide the doubtful words, the UL report the procedure makes you be able to let UL of management organization hear your opinion but need not worry the influence and relation between ULs.

Service item of UL
UL product attestation, the category that experiment the service mainly can is divided in to appear on a list, approbation and ratings.
1) appear on a list( LISTED):Speak generally, appear on a list only product of be applicable to the integrity and entitle to the personnel to carry on various machine piece that substitutes or installs and equip on the spot, belong to the UL to appear on a list ministrant of various product include:Home appliances, medical treatment equipments, calculator, the business equipments and each kind of electric appliances product of the function in the building, if go together with to give or get an electric shock system, fuse, electric wire, switch and the an etc. of the other electricities.Product appear on a list by UL, usually can mark on each product up the UL appears on a list the marking.Appear on a list the method of using of the marking.
2) approve( Recognized):Approve the service is an item within the UL service, the product that it authenticate is only and can appear on a list in the UL, ratings or other accredit products up be a dollar machine piece, original material usage.Approve the product not complete on the structure, or have the certain restrict on the use to attain anticipant safe function with the assurance.Under the condition of most, on the trail of services that approve the product all belong to R.The accredit product that belongs to L contain the electronics line( AVLV2), processing the line material( ZKLU2), the line tie( ZPFW2), the aluminum line( DVVR2), and the metals tube( DXUZ2).Approve the product requests to take the accredit marking.
3) ratings( Classification):The ratings service only to product of particular endanger to carry on the evaluation, or to performance the UL standard outside of other standard( include international up approve of standard, such as IEC and ISO standard etc.) of product carry on the evaluation.Generally speaking most ratings product not the product of the consumer usage, but industry or business last the product of the usage.The ratings within the UL marking marking expressed that product while was authenticate by UL have the certain restrict condition and provision the scope.For example to such chemicals of melting agent that industry use, only as to it's attain a fire this scope that the hour of the ignition point temperature may take place to carry on the evaluation.The ratings service of some products is similar to appear on a list the service, but general just to product of some on the other hand or some aspects carry on the evaluation, such as in the United States, cure with the provision that the X shoots this equipments of the line diagnosis instrument to want that the whole country obeys the American law and relevant radiations to shoot and tie to flow the accuracy, but the UL shoots the line to the X to be the ratings product only, so evaluate its machine function, the electricity function and others only to radiate these aspects of functions not.
4) many heavy appear on a list, many heavy approbation or many heavy ratings service:An applicant of UL at obtain to appear on a list, approve above-mentionedly or the ratings service after, its product want with another a the name of the company produces with the demand of satisfy the sale, can apply for many heavy appear on a list, have another heavy approbation or many heavy ratings serviceses, in this kind of case, be appeared on a list, approved or the manufactory of the ratings is allow to use the product record in of another company of name, but that product in addition to the company code, other characteristics that the product code or company of ULs see fit to accept outside, must be in accordance with originally appear on a list, the approbation or the ratings produce the product.
5)" AL" appears on a list, approves or ratings service:If the applicant of UL does not want that the name of use oneself's company obtains to appear on a list, approve or the ratings service, he can apply for to appear on a list with another name application of name of shop( is usually dealer or wholesale dealer), approbation or ratings, then call" AL" appear on a list, approve or the ratings service.It with many heavy appear on a list, many heavy pprobation or many the differentiation that heavy ratings service lie in its applicant is not to appear on a list the person.
6) system attestation service:Conduct and actions one of the member of the international accredit committee, the UL sets foot in the ISO9000 quantity system attestation extensively, the ISO14000 environmental protection attestation, the QS9000 automobile profession quantity system attestation and the AS9000 airplane profession quantity system attestation service.So far, have the system attestation that 116 factories obtain the UL totally in the domestic;21 among thoses are attestations of ISO9001,85 the is an attestation of ISO9002,1 is attestation of ISO14001,9 is attestation of QS9000.
7) UL other service:If certificate service, examination service, true state of matter judgment service, investigation service etc.

 

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The UL Attestation Introduction