An Unqualified Person May Cross Which of the Following Boundaries

The limited approach boundary is the minimum distance from an exposed live component where unqualified personnel may safely stand. They must use PPE appropriate for working near energized parts.

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. Limited approach boundary when continually escorted by a qualified person. The restricted boundary To cross the restricted boundary and access the restricted space personnel need to have been trained in shock protection techniques be wearing the correct PPE and have a written and approved plan for any. No untrained personnel may approach energized parts any closer in this boundary unless under the supervision of a qualified worker and using proper PPE.

An unqualified person may cross the _____ only if they are advised of the specific hazards and are continuously escorted by a qualified person. Under no circumstance shall an unqualified persons be permitted to cross the restricted approach boundary. These boundaries trigger multiple requirements in 70E including but not limited to determining the type and level of PPE and qualifications required to cross into each level.

43 Arc Flash Boundary. This boundary is in close proximity to a shock hazard and may only be crossed by qualified persons. The Arc Flash Boundary.

Where there is a need for an unqualified person to cross the limited approach boundary a qualified person shall advise him or her of the possible hazards AND continuously escort the unqualified person while inside the limited approach boundary. This includes testing troubleshooting and voltage measuring within the Limited Approach Boundary of energized electrical. There are no circumstances which would allow an unqualified person to cross the Restricted Approach Boundary.

ARC FLASH BOUNDARY AND PPE There is one approach boundary for arc flash protection. To cross the boundary into the restricted space while the equipment is still powered personnel need to have. An unqualified person may cross which of the following boundaries.

The Restricted Approach Boundary is the shock protection boundary closest to the exposed energized parts and may only be crossed by. An unqualified person may cross the ___ only if they are advised of the specific hazards and are continuously escorted by a qualified person. The boundaries are summarized below.

Limited Approach Boundary NFPA 70 defines Limited Approach Boundary as a shock protection boundary to be crossed by only qualified persons at a distance from a live part which is not to be crossed by unqualified persons unless escorted by a qualified person. Unqualified workers may not cross the Limited Approach Boundary unless briefed on the hazards and continuously escorted by a qualified person. The qualified person is insulated or guarded from the live parts and no uninsulated part of the qualified persons body crosses the Prohibited Approach Boundary.

Qualified persons may not cross or take any conductive object closer than the Restricted Approach Boundary unless one of the following conditions apply. Unqualified workers shall not perform any work for which a Qualified Electrical Worker is required. Also unqualified persons may cross the limited approach boundary if escorted by a qualified person and with appropriate PPE.

Boundaries associated with various system voltages. Only qualified persons may cross this boundary. Unqualified persons may only cross the Limited Approach Boundary when they are under the direct supervision of a qualified person.

You just studied 19 terms. Under NFPA 70E there are three boundaries that are observedlimited approach restricted approach the shock protection boundaries and arc flash boundary. 523 Unqualified persons may only cross the Limited Approach Boundary when they are under the direct supervision of a qualified person.

The arc flash boundary is the distance from exposed live parts within which a person could receive a second-degree burn 12 calcm 2 if an electrical arc flash were to occur. Also Know what is the restricted approach boundary for a 480v system. If unqualified workers must cross the Limited Approach Boundary they must be escorted by a qualified worker.

524 Qualified persons may not cross or take any conductive objects closer than the Restricted Approach Boundary. Limited approach boundary when continually escorted by a qualified person. This article originally appeared in the November 2007 issue of Occupational Health.

This boundary may only be crossed by a qualified person wearing the. Unqualified workers are never permitted within the restricted approach boundary. Under no circumstance shall an unqualified person be permitted to cross the restricted approach boundary.

The limited approach boundary for a 480 V circuit is _____. Electrical safety principles dictate that only properly qualified persons perform work on electrical equipment. Unqualified Persons Entering the Limited Approach Boundary.

Qualified persons may not cross or take any conductive object closer than the Restricted Approach Boundary unless one of the following condition apply. An unqualified person may cross the ___ only if they are advised of the specific hazards and are continuously escorted by a qualified person arc flash boundary and limited approach boundary The boundary used to determine the safe work zone is the. The Restricted Approach Boundary.

NFPA 70 defines Limited Approach Boundary as a shock protection boundary to be crossed by only qualified persons at a distance from a live part which is not to be crossed by unqualified persons unless escorted by a qualified person. An unqualified person may enter the limited approach area if they are under the supervision of a qualified person.

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