Value is calculated pursuant to the circuit diagram submitted by the customer.
Description
A lead-in distributor (LID) is used for the reception, distribution and metering of the electric power of three-phase alternating current with a frequency of 50 Hz and a voltage of 220/380 V.
Use of a LID:
A lead-in distributor (LID) is used for the reception, distribution and metering of the electric power of three-phase alternating current with a frequency of 50 Hz and a voltage of 220/380 V. In addition, a LID serves to protect the lines against overloading and short circuits, as well as regarding rear routine switching.
Lead-in distributors (LIDs), main switchboards (MSBs) should be installed in the electric-board rooms accessible for the attending personnel.
Input devices (IDS), lead-in distributors (LIDs), main switchboards (MSBs) are not permitted to be located directly under sanitary conveniences, bathrooms, shower rooms, kitchens (besides apartments’ kitchens), the washing and steam rooms of bathhouses and other rooms with moist technological processes, except the cases when special measures have been taken with regard to the reliable hydraulic seal, which prevent the humidity penetration into the rooms, where distribution devices are installed.
Input devices (InDs), lead-in distributors (LIDs), main switchboards (MSBs) are permitted to be located beyond the electric-board rooms provided that the requirements are met as follows:
* the degree of the shell protection should be no lower than ІР31;
* location at the easy and accessible for maintenance places (in heated lobbies, vestibules, corridors etc.);
* protection and control devices should be installed in metal cabinets, the doors of which can be locked. Therewith the handles of control devices should not be put outwards, but they should be removable and such that can be locked;
* the distance from pipelines (water pipe, heating, sewerage systems, internal water drains) should be no less than 0.5 m from gas pipelines and from gas meters no less than 1 m.
A lead-in distributor (LID) is an obligatory element of the electric power supply of all industrial and residential buildings.
According to their purpose, the LID panels are classified as:
* input panels;
* distribution panels (are used together with input ones);
* in-lead distributing panels.
LID panels occupy separate sections, which the casing of the entire device is divided into. No special board rooms are required to operate the LIDs.
Characteristics:
A lead-in distributor (LID) is a metal cabinet, in the middle of which there can be load-break switches, fuses, meters, a lighting switch, voltmeters and amperemeters.
Control and measuring instruments, voltmeters, amperemeters, indication switches, signal lamps can be installed on the LID doors.
Amperemeters and meters are connected through current transformers.
The metering circuits in the LIDs are covered with transparent panels, which can be sealed with lead.
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