AB2KH said:Doc,
If you look very closely at those socks there is a vertical silver looking strip from the arch up the ankle. I'm wondering if those were not some sort of ESD equipments that they were required to wear ?
I'm only familiar with wrist strap static devices but in those types of environments there may be "special" requirements, perhaps there are individuals here on the forum who have experience with that type of work place.
I mean really, NO ONE wears orange socks!!
Chris/AB2KH
2.3.12 Groundable Footwear-OPTIONAL
For personnel grounding, the use of groundable footwear in conjunction with a grounded conductive, or static dissipative, flooring system is an optional alternative to the wrist strap in situations where wrist straps are inappropriate or unsafe for use.
Groundable footwear consisting of heel or toe grounders, shoes or shoe covers are acceptable for personnel grounding. A user is grounded only when direct contact exists between the user’s footwear device and a grounded flooring system. The resistance from the person through the footwear device and flooring system to ground shall be greater than 750 kilo ohm and less than 100 megohm. Dirt buildup on the footwear device can affect conductivity to the floors or mats, so they shall be kept acceptably clean. In conditions where groundable footwear is worn footwear grounding devices must be worn on both feet.
Footwear shall not be used as the primary ground for seated personnel.
Each person handling ESDS items shall be capable of, and responsible for, electrically testing their groundable footwear device at the start of each work shift. Groundable footwear shall be tested while being worn, with each foot tested separately. Only JPL calibrated “go/no-go†footwear testers that check for a total system resistance shall be used. Footwear devices that do not satisfy this resistance range shall be discarded. A footwear test log (see Appendix F for template) shall be used to indicate that the footwear strap was checked each day that they are used. The footwear test log shall contain the wearer’s name, building/room location, date, and a check mark for each day’s test.
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