Guidelines for Layout Planning of Home Split Meter Ready Boards

The Split Meter Ready Board is the core hub of home circuits, and a reasonable layout directly affects electrical safety and convenience. The following will be discussed from three aspects: functional zoning, line planning, and safety design, combined with practical cases to illustrate:

1、 Functional zoning: modular design

Main switch module

Function: Control the power supply of the entire house and quickly cut off power in emergency situations.

Suggestion: Choose a main switch with leakage protection function (such as 40A leakage protection) to avoid the risk of electric shock.

Case: When there is a leakage in the kitchen, the main switch can cut off the power supply within 0.1 seconds.

Split control module

Partition principle: Divide according to space or type of electricity consumption, for example:

Lighting branching: Independent control for living rooms, bedrooms, corridors, etc., to avoid single path failures and complete house blackout.

Socket branching: Separate branching for kitchen (high-power appliances), bathroom (waterproof sockets), and ordinary sockets (such as TVs and computers).

Quantity suggestion: It is recommended to set up 6-8 branch lines for ordinary three bedroom apartments, as follows:

Recommended current for shunt type example equipment (A)

Lighting branching ceiling light, light strip 16

Kitchen socket, rice cooker, microwave 20

Bathroom electric water heater, smart toilet 25

Air conditioning branching cabinet/hanging air conditioner 32

Backup circuit module

Reserve 1-2 backup circuits for future addition of electrical appliances (such as underfloor heating and fresh air systems).

2、 Route planning: safety and efficiency

Wire diameter matching

Lighting circuit: 1.5mm ² copper wire (load ≤ 2000W).

Socket circuit: 4mm ² copper wire (load ≤ 8000W) is used in the kitchen/bathroom, and 2.5mm ² copper wire is used for ordinary sockets.

Air conditioning circuit: 6mm ² copper wire is used for cabinet machines, and 4mm ² copper wire is used for hanging machines.

Layout of conduit

Separation of strong and weak electricity: Keep a distance of at least 20cm between lighting/socket wires and network and television cables to avoid signal interference.

Horizontal and vertical: Use a pipe bender at the bend of the conduit to avoid making the wire unable to be pulled out due to a right angle bend.

ground protection

All metal shell appliances (such as refrigerators and washing machines) need to be grounded through the distribution box, and the current should be directed to the ground in case of leakage.

3、 Safety design: prevent problems before they happen

Leakage protection

30mA leakage protectors should be installed in damp areas such as kitchens and bathrooms to cut off power within 0.03 seconds in case of electric shock.

It is recommended to use 40mA leakage protection for the main switch to balance sensitivity and stability.

overload protection

Each branch is equipped with an air switch (such as 16A, 20A), which automatically trips when the current is overloaded.

Case: When using both a microwave and a rice cooker in the kitchen, a 20A air switch can prevent the circuit from overheating.

Clear identification

Use a label machine to label the names of each branch (such as "living room lighting" and "kitchen socket") for easy maintenance in the future.

4、 Common Problems and Solutions

Problem Type Solution

Frequent tripping to check if the circuit is overloaded, or replace with a higher current circuit breaker

Leakage alarm inspection of electrical appliances in damp areas, replacement of leakage protection switches

Reorganize the route due to chaotic branching and increase the number of branches

summarize

Core principles: clear functional zoning, reasonable matching of wire diameters, and adequate safety protection.

Optimization suggestions: Reserve backup circuits, use modular distribution boxes (such as ABB and Schneider brands), and regularly check the aging status of the lines.

Through scientific layout, Split Meter Ready Boards can not only ensure electrical safety, but also reserve space for future home upgrades (such as smart homes).