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Carelabs

IEEE 1584 · Engineering

Integrated Arc Flash Protection For Indian Workplaces

Fortify electrical safety with Care Labs’ value-added solutions, custom-fit for Indian industries.

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Evidence for the permit, and for the contractor

Most energised work on Indian industrial sites is performed by contractors under a permit. The permit is only as good as the hazard information behind it, and for an arc that means a calculated number.

What We Deliver

Incident energy per working position

Energy is calculated in cal/cm² to IEEE 1584-2018 from the electrode configuration, enclosure dimensions, gap and working distance recorded on site, each of which materially changes the result.

THE GAP

A permit that cites no number

Permits frequently require PPE without stating what energy it must withstand. The contractor then supplies what they normally use, which is a decision made with no knowledge of the installation it is being used on.

  • Assessment to IEEE 1584-2018 with the validity range stated and any extrapolation identified rather than absorbed silently.
  • Fault current from a short circuit study to IEC 60909, using the fault level obtained from the distribution licensee for the point of supply.
  • Captive generation included where present, since on-site generation contributes to faults and raises the duty on downstream equipment.
  • Clearing times read from the installed devices, because settings schedules and relays diverge across the operating life of a plant.
  • Earthing arrangements examined against IS 3043 where they affect fault path and protection operation.
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DELIVERABLES

What you receive

A signed engineering report aligned to CEA Regulations 2010 and IEEE 1584, issued by the engineer who carried out the site work.

  1. 1Incident energy and arc flash boundary by equipment and working position
  2. 2Permit-ready hazard sheets per switchboard, suitable for attachment to a work authorisation
  3. 3Labels ready to apply, with a placement schedule
  4. 4PPE specification per position, referenced to calculated energy rather than equipment class
  5. 5Mitigation options for positions above the practical PPE limit, with the clearing-time change each requires
Reach Out

How the study runs

01

Map the energised work

We establish which equipment is accessed live and by whom, since contractor-performed work is where hazard information most often fails to travel.

02

Site survey

Enclosure geometry, electrode configuration, gap and working distance are captured with nameplate data, because the calculation depends on each.

03

Establish fault current

Fault level is obtained from the distribution licensee and any captive generation is included, since it contributes to the duty downstream.

04

Protection review

Device settings are read on site and clearing time taken from the real characteristic at the calculated arcing current.

05

Calculate and prepare the permit data

Energy and boundaries are determined per position and issued as permit-ready sheets alongside the labels.

06

Brief operations and contractors

Findings are ranked and the people issuing permits are briefed, so hazard information reaches the workers it is intended to protect.

Frequently asked questions

Not by name. CEA Regulations 2010 govern safety and electric supply, and factory legislation places a general duty on the occupier to provide a safe workplace. For an arc hazard, quantifying incident energy is the practical way that duty is evidenced, because the energy is not observable and varies widely between boards on one site.
It gives the permit real content. Instead of requiring unspecified PPE, the permit states the energy, boundary and protection level for the specific equipment. That converts a general instruction into one the contractor can act on, and removes the assumption that their standard equipment is adequate for your installation.
Yes. On-site generation contributes current to a fault, raising the duty on downstream equipment and potentially altering how protection operates. A study that models only the grid supply understates the position for any period the plant runs on or in parallel with its own generation.
Any change to the inputs: a licensee network reinforcement, a transformer replacement, added captive generation, a switchboard extension or a protection setting change. Where the model has been retained the re-run is short, and labels calculated against a superseded fault level are wrong while appearing authoritative.

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