CSA C22 2 NO 73-1953 Construction and Test of Electrically Equipped Machine Tools (Second Edition General Instruction No 1 August 1953).pdf
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1、C22.2 No. 73-1953(reaffirmed 2013)Construction and test of electrically equipped machine toolsLegal Notice for StandardsCanadian Standards Association (operating as “CSA Group”) develops standards through a consensus standards development process approved by the Standards Council of Canada. This pro
2、cess brings together volunteers representing varied viewpoints and interests to achieve consensus and develop a standard. Although CSA Group administers the process and establishes rules to promote fairness in achieving consensus, it does not independently test, evaluate, or verify the content of st
3、andards.Disclaimer and exclusion of liabilityThis document is provided without any representations, warranties, or conditions of any kind, express or implied, including, without limitation, implied warranties or conditions concerning this documents fitness for a particular purpose or use, its mercha
4、ntability, or its non-infringement of any third partys intellectual property rights. CSA Group does not warrant the accuracy, completeness, or currency of any of the information published in this document. CSA Group makes no representations or warranties regarding this documents compliance with any
5、applicable statute, rule, or regulation. IN NO EVENT SHALL CSA GROUP, ITS VOLUNTEERS, MEMBERS, SUBSIDIARIES, OR AFFILIATED COMPANIES, OR THEIR EMPLOYEES, DIRECTORS, OR OFFICERS, BE LIABLE FOR ANY DIRECT, INDIRECT, OR INCIDENTAL DAMAGES, INJURY, LOSS, COSTS, OR EXPENSES, HOWSOEVER CAUSED, INCLUDING B
6、UT NOT LIMITED TO SPECIAL OR CONSEQUENTIAL DAMAGES, LOST REVENUE, BUSINESS INTERRUPTION, LOST OR DAMAGED DATA, OR ANY OTHER COMMERCIAL OR ECONOMIC LOSS, WHETHER BASED IN CONTRACT, TORT (INCLUDING NEGLIGENCE), OR ANY OTHER THEORY OF LIABILITY, ARISING OUT OF OR RESULTING FROM ACCESS TO OR POSSESSION
7、OR USE OF THIS DOCUMENT, EVEN IF CSA GROUP HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES, INJURY, LOSS, COSTS, OR EXPENSES.In publishing and making this document available, CSA Group is not undertaking to render professional or other services for or on behalf of any person or entity or to perf
8、orm any duty owed by any person or entity to another person or entity. The information in this document is directed to those who have the appropriate degree of experience to use and apply its contents, and CSA Group accepts no responsibility whatsoever arising in any way from any and all use of or r
9、eliance on the information contained in this document. CSA Group is a private not-for-profit company that publishes voluntary standards and related documents. CSA Group has no power, nor does it undertake, to enforce compliance with the contents of the standards or other documents it publishes. Inte
10、llectual property rights and ownershipAs between CSA Group and the users of this document (whether it be in printed or electronic form), CSA Group is the owner, or the authorized licensee, of all works contained herein that are protected by copyright, all trade-marks (except as otherwise noted to th
11、e contrary), and all inventions and trade secrets that may be contained in this document, whether or not such inventions and trade secrets are protected by patents and applications for patents. Without limitation, the unauthorized use, modification, copying, or disclosure of this document may violat
12、e laws that protect CSA Groups and/or others intellectual property and may give rise to a right in CSA Group and/or others to seek legal redress for such use, modification, copying, or disclosure. To the extent permitted by licence or by law, CSA Group reserves all intellectual property rights in th
13、is document.Patent rightsAttention is drawn to the possibility that some of the elements of this standard may be the subject of patent rights. CSA Group shall not be held responsible for identifying any or all such patent rights. Users of this standard are expressly advised that determination of the
14、 validity of any such patent rights is entirely their own responsibility.Authorized use of this documentThis document is being provided by CSA Group for informational and non-commercial use only. The user of this document is authorized to do only the following:If this document is in electronic form:
15、sLOADTHISDOCUMENTONTOACOMPUTERFORTHESOLEPURPOSEOFREVIEWINGITsSEARCHANDBROWSETHISDOCUMENTANDsPRINTTHISDOCUMENTIFITISIN0$ (b) The mechanical features of machine tools, except as these affect the electrical equipment used in connection with such machines; (c) Woodworking machines ;* (d) Portable electr
16、ic tools (e.g., drills, hammers, etc.) covered in the latest issue of Specifica- tion C22.2 No. 71, “Portable Electric Tools“; (e) Welding or gas-cutting machines. *Machjps used for both woodworl?ing and metalworking are required to comply with this Specification and also with any special requiremen
17、ts for woodworking machines. NorrE: The Approvals Laboratories will, at its discretion, use this Specification in the approval of other types of ma- chines not specifically covered by other individual Specifi- cations of Part II of this Code insofar as its requirementt may be aJ4hcable. USE Us. 2. F
18、or general industrial use. 8 CSA SPECIFICATION C22.2 No. 73 SPECIFICATION DETAILS GENERAL REQUIREMENTS General 3. See the latest issue of Specification C22.2 No. Requirement! 0, “Definitions and General Requirements“; applic- able to all Specifications of Part II of this Code. Other references herei
19、n to that Specification are ab- breviated to “Specification C22.2 No. 0“. Ncnt: Throughout this Specification reference is made to certain other Specifications which should be consulted. A list of these Specifications appears on page 6. CONSTRUCTION General 4. Component parts of electrical equipment
20、 shall be of types specifically approved for the use intended or shall be approved with, and as anintegral part of, the machine. 5. Approval of component parts as a part of a machine shall not be regarded as acceptance of such parts for general use or necessarily for use with any machine other than
21、that for which the approval has been granted. Installation 6. Electrically equipped machine tools shall be so constructed that the rules for the installation and use of the electrical equipment, as set forth in Part I of this Code, may be readily complied with. 7. Electrical equipment on machine too
22、ls shall be so located, guarded or enclosed as to provide adequate protection for such equipment during all normal operation of the machines. Acces8ibility 8. Electrical equipment which will require serv- icing or maintenance shall be made accessible for such work without the necessity of dismantlin
23、g any of the mechanical parts of a machine. This does not preclude the removal of a cover plate. Enclosures 9. If electrical equipment is mounted on the back of doors or cover plates, the doors or cover plates shall either be hinged or the complete assembly shall be readily removable as a unit. The
24、construction shall be such as to place no strain on leads or connections or subject them to abrasion when the cover is removed or the unit is withdrawn. If the weight of cover plate and attached equipment is in excess of 5 pounds, means shall be provided to support it in the withdrawn position. ELEC
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