what is the difference between fault protection and additional protection?
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The fault protection refers to cases like TT were the max Zs cannot be met so in a TNCS situation the RCD would not generally be required for fault protection because the Zs readings would be within limits. Additional protection is that extra bit of safety for sockets outside for eg.
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Surge protectors offer protection in amounts called joules. Generally, the more joules the better, as this means the device can handle one large surge, or multiple smaller surges, before your gear is in danger. Over time, the parts inside the protector wear down, reducing its effectiveness.
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Fuses represent a less expensive route for overcurrent protection. They also react faster than a circuit breaker, and they are believed to be more failsafe than breakers because they contain fewer moving parts. The metal either melts or it does not.
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The difference is that additional insureds receive only liability protection whereas loss payees receive only property damage coverage. ... Another key difference is that additional insureds cannot receive payments for other liability claims involving the property, only matters in which they have a direct interest.
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There is no difference. Ground fault circuit interrupters (GFCI) and ground fault interrupters (GFI) are the exact same device under slightly different names. Though GFCI is more commonly used than GFI, the terms are interchangeable.
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The basic difference between a combined single limit policy and a split limit policy is that the split limit requires multiple limitations to the policy while single limit coverage gives you one amount of coverage to use as needed for the expenses resulting from an auto accident.
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This section requires that all replacement receptacles be arc-fault circuit interrupter (AFCI) protected. This means that if you're replacing an old outlet in an old home in a location that needs AFCI protection in a new home, the replacement outlet needs to be AFCI protected.
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The difference between Protection and Security. When used as nouns, protection means the process of keeping (something or someone) safe, whereas security means the condition of not being threatened, especially physically, psychologically, emotionally, or financially.
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When electrical faults or short circuits occur, the damage produced is largely dependent upon the time the fault persists. Therefore, it is desirable that electrical faults be interrupted as quickly as possible.
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They rely on voltage returning to the trip via the earth wire during a fault and afford only limited protection to the installation and no personal protection at all. You should use plug in 30mA RCD's for any appliances and extension leads that may be used outside as a minimum.
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A primary policy provides the first layer of insurance coverage. ... The primary insurer is first responsible for defending and indemnifying the insured in the event of a covered or potentially covered occurrence or claim. An excess policy provides specific coverage above an underlying limit of primary insurance.
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A named insured is entitled to 100% of the benefits and coverage provided by the policy. An additional insured is someone who is not the owner of the policy but who, under certain circumstances, may be entitled to some of the benefits and a certain amount of coverage under the policy.
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Both the fuse and the circuit breaker are designed to protect the circuit against short circuit current and overloads. The GFCI, the ground-fault circuit interrupter, and the AFCI, the arc-fault circuit interrupter, are devices designed to meet specific electrical safety issues. ... The GFCI is resettable.
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Over load relays are used in control and power circuits to protect the motor from over load /over current. ... The current setting of earh fault relay is low while the current setting of phase fault relay is reltively higher than earth fault relay. Both relays are essentially overcurrent relay.
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An additional named insured is a person or business that is named somewhere else in the policy. An additional named insured will have the same rights as a “Named Insured” but typically won't be responsible for the premium.
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Central Differences The key difference between at-fault and no-fault insurance policies is whether the victim has a right to sue. Additionally, a central difference is who pays for the injured party's damages.
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There are two types of ground-fault protection required by the NEC: 1) the GFCI and 2) the GFPE. A GFCI is intended to protect persons against shock and electrocution. As implied by its name, the GFPE protects equipment from damaging line-to-ground faults and is not intended for the protection of people.