IEEE C57.12.29-2014 pdf download

IEEE C57.12.29-2014 pdf download.IEEE Standard for Pad-Mounted Equipment-Enclosure Integrity for Coastal Environments.
4.2.6 Handhole covers
If handhole covers are exposed, they shall be secured from the inside of the enclosure.
4.2.7 Lockingllatching devices
The latching device(s) shall he designed and constructed of such a material so as to resist breaking or bending. The provision for locking device(s) on the enclosure door(s) shall be designed and located as to comply with the defined tests.
4.2.8 Enclosure access
All access doors shall be fastened with a device that uses a pentahead tool to permit unlatching the door only after the padlock has been removed. This pentahead device or bolt shall be coordinated such that the padlock cannot be inserted into hasp until the access door is fully latched and the pentahead device is securely engaged.
Enclosures without latches shall have padlock and pentahead bolt provisions, and shall be coordinated to prevent insertion of a padlock until the access door is fully closed and the pentahead device or bolt is securely engaged. The padlock shall be removed before the pentahead bolt can be disengaged.
A minimum of one pentahead device or bolt and padlocking means shall be provided. The pentahead device or bolt shall be surrounded by a non-rotating guard or shall be recessed such that the pentahead device or bolt can be engaged only by the proper tool. The dimensions of the pentahead bolt and non- rotating recess shall comply with Figure I. The pentahead device or bolt shall not he readily removable until the padlock has been removed. More than one door may be fastened with a single padlock and pentahead device or bolt. In the event that the pentahead bolt is missing, the design shall he such that the cabinet shall remain inaccessible through the bolt hole. The bolt hole shall be blocked from the back and all sides to prevent wire probe entry.
4.3.4 Probe wire
The probing wire shall be bare number 14 AWU soft-drawn solid copper wire 3 m (10 feet) long.
4.4 Resistance to foreign objects
The following tests are to be performed on the enclosure. The enclosure shall resist the entry of foreign objects such as sticks, rods, or wires.
4.4.1 General
The pad-mounted enclosure shall be mounted on a flat surface according to the manufacturer’s specification. With the access door(s) closed and locked using a padlock with an 8 mm (5/16 in) diameter shackle, the following sequence of tests shall be performed:
a) Pry tests
b) Wire probe tests
c) Pull tests
d) Repeat wire probe tests
c) Deflection tests
1’) Operation test
4.4.2 Pry tests
The pry bar shall be used on all joints, crevices, hinges, locking means, and other objects that exist between the enclosure components, including the enclosure/pad interface. The pry bar shall be permitted to be placed at any angle to the enclosure surface. The tip of the bar shall first be inserted in the opening being tested using the value of axial force specified in Table I. Then, with that axial force being maintained, the prying tbrce specified in Table 1 applied alternatively first in one direction and then in the opposite direction (i.e., once in each direction). Application of either or both axial and prying force shall be maintained as long as relaxation is occurring. When relaxation ceases, or if no relaxation occurs, the pry bar shall be removed and pry test reapplied at the same location. When relaxation ceases or no relaxation occurs after the second test, the pry bar shall be removed and applied at an untested location.
4.4.3 Pull tests
A pulling force shall be applied to the critical points of all enclosure parts that can be engaged by the pulling hook. A pulling force indicated in Table 1 shall be exerted at any angle to the enclosure surface. This force is to be maintained during any relaxation. When relaxation ceases, or if no relaxation occurs, the pull test shall be terminated. The hook shall then be inserted into any other part in which it can engage, and the test shall be repeated at the new location. All parts that can be engaged by the pull hook shall be tested once.