Electrotechnical symbol

First, the wire goes through the pipe and says

Super capacitor welded steel pipe

MT- catheter

PC-PVC plastic rigid pipe

FPC flame retardant plastic rigid pipe

Current transformer bridge

MR- metal trunking

Mobile cable

CP- metal hose

Plastic trunking

Reinforced concrete galvanized steel pipe

Second, the expression of conductor laying mode

Direct burial

TC- cable trench

BC- hidden in the light beam

CLC- hidden in the column

WC- hidden in the wall

CE- laying along the ceiling

CC- hidden in the ceiling

SCE- Laying in suspended ceiling

F- under the floor and terrace

SR- along the cable

BE- along the roof truss and beam

Fu Yongming along the wall

Third, the installation method of lamps and lanterns

CS- chain crane

DS- pipeline crane

W-wall installation

C-ceiling

R- embedding

S-bracket

CL- on chromatographic column

Along the groove of steel: SR

Along or through the roof truss: Yes.

Along or through the cylinder: CLE

Laying through welded steel pipe: SC

Catheter laying: MT

Hard plastic pipe laying: PC

Laying through flame retardant semi-rigid PVC pipe: FPC

Cable trough laying: CT

Metal trough laying: MR

Plastic trunking laying: PR

Cable laying: m

PVC laying in plastic corrugated pipe: KPC

Laying through metal hose: CP

Direct burial: DB

Cable trench laying: TC

Marking of conductor laying parts

Laying along or across beams (roof truss): AB

Hidden in the light beam: BC

Laying along or across columns: AC

Buried in a column: CLC

Laying along the wall: WS

Buried in the wall: WC

Laying along the ceiling or roof: ce

Buried on the roof or roof: CC

Ceiling laying: SCE

Ground or underground laying: FC

HSM8-63C/3P

DTQ30-32/2P should be two types of molded case circuit breakers.

HSM8-63C/3P is suitable for lighting circuit, and it is a three-pole switch with rated current of 63A (three-way switch).

DTQ30-32/2P is also a plastic case circuit breaker with rated current of 32A, with two-pole switch.

Those other symbols are all about threading and wiring methods. Please check against them.

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Model meaning:

R- flexible cable (wire) for connection, flexible structure.

V-type insulated polyvinyl chloride. Pvc insulating sheath

B flat.

S-shaped twist. Tin or silver plating.

F- high temperature resistance

P braided shield P2 copper belt shield P22 steel belt armor

Y-prefabricated, usually omitted or polyolefin sheath

FD- product category code, which refers to branch cable. The standards to be promulgated by the Ministry of Construction are expressed by FZ, and their essence is the same.

YJ XLPE insulation

PVC insulation or sheath

Zirconium flame retardant

NH— Fire-resistant type

WDZ—— Halogen-free Low Smoke Flame Retardant

WDN-halogen-free, low-smoke fire-resistant type

For example: SYV 75-5- 1(A, b, c)

S: RF Y: polyethylene insulation V: PVC sheath A: 64 series B: 96 series C: 128 series.

75: 75 Ohm 5: Wire diameter 5MM 1: stands for single core.

SYWV 75-5- 1

S: RF y: polyethylene insulation w: physical foaming v: PVC sheath

75: 75 Ohm5: cable outer diameter 5MM 1: stands for single core.

For example: rvvp2 * 32/0.2rvv2 *1.0bvr.

R: flexible cord VV: double-layer sheath line p shield.

2: 2-core multi-stranded wire 32: each core has 32 copper wires 0.2: each copper wire has a diameter of 0.2 mm.

ZR-RVS2*24/0. 12

ZR: flame retardant R: flexible wire S: twisted pair

2: 2 core multi-strand 24: each core has 24 copper wires 0. 12: the diameter of each copper wire is 0.12 mm.

Model and name

RV Copper Core Vinyl Chloride Insulated Connecting Cable (Wire)

Tinned copper core polyethylene insulated flat connection flexible cable (wire)

RVB Copper Core PVC Flat Connecting Wire

RVS Copper Core PVC Stranded Connecting Wire

RVV copper core PVC insulated PVC sheathed round connecting flexible cable

Tinned copper core PVC insulated PVC sheathed flat connection flexible cable

RVVB Copper Core PVC Insulated PVC Sheathed Flat Connection Flexible Cable

RV- 105 Copper Core Heat Resistant 105oC PVC Insulated Flexible Cable

Af-205afs-250afp-250 silver-plated PVC plastic insulated high-temperature resistant-60oC~250oC connecting cord

2, the meaning of specification representation

Specifications are represented by the number of cores, nominal cross section and voltage level.

① specification of single-core branch cable: number of cables in the same loop * (1 * nominal section), 0.6/ 1KV,

Such as: 4 * (1*185)+1* 950.6/1kv.

② Specification of multi-core stranded branch cable: number of cables in the same loop * nominal section, 0.6/ 1KV,

Such as: 4 * *185+1* 950.6/1kv.

③ Specification of multi-core armored branch cable: number of cable cores× nominal section -T, such as 4× 25-t..

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Mine armored control cable; MKVV22, MKVV32 2*0.5, 3*0.75, 4*4,-37 *1.5mm.

Armored control cable; KVV22, KVV32, KvvR22 2 2 * 0.5, 3*0.75, 4*4,-37 *1.5mm.

Armored shielded control cables KVVP-22, RVVP-22, KVRP-22, KVVP2-22 and KVVRP2-22.

2*0.5, 3*0.75, 4*4,-37 *1.5mm

Armored flame retardant control cable; ZR-KVV22、ZR-KVV32、ZR-KVVR22

2*0.5, 3*0.75, 4*4,-37 *1.5mm

Armored flame retardant shielded control cable;

ZR-KVVP22，ZR-KVVRP22，ZR-KVVP2-22，ZR-KVVRP2-22

2*0.5, 3*0.75, 4*4,-37 *1.5mm

Armored communication cable; HYA22, HYA23, HYA53, HYV22, HYV23 5 pairs, 10 pairs -2400 pairs.

Yes, the wire diameter is 0.4-0.5-0.6-0.7-0.8-0.9.

Oil-filled armored communication cable; HYAT22, HYAT23, NYAT53 5 pairs, 10 pairs -800 pairs.

0.4-0.5-0.6-0.7-0.8-0.9 wire diameter

Armored flame retardant communication cable;

ZR-HYA22，ZR-HYA23，ZR-HYA53，WDZ-HYA23，WDZ-HYA53

5 pairs, 10 to -2400 pairs, and the wire diameter is 0.4-0.5-0.6-0.7-0.8-0.9.

Mine armored flame retardant communication cable; MHYA22，MHYV22，MHYA32，MHYV32

5 pairs, 10 to -200 pairs, wire diameter 0.5-0.6-0.7-0.8-0.9- 1.0.

Armored computer cable;

DJYVP22，ZR-DJYVP22，DJYVRP22，DJYPV22，ZR-DJYPV22DJYPVR22

DJYPVP22，DJYPVRP22，ZR-DJYPVP22，ZR-DJYPVPR22

1* 2 * 0.752 * 2 *1.03 * 2 *1.5-30 * 2 *1.5mm.

Armored railway signal cable; PZY23，PTY23，PZY22，PTY22，PZYH23，PTYH23

PZYA23、PZYA22、PZYAH22、PTYAH22、PTYAH32、PZY32

4 -6 -8 -9-6

Encyclopedia of character circuit diagram symbols:

Automatic switching-in device of AAT power supply

Alternating current

DC direct current

Rich fuse

G generator

M motor

Mercury green light

HR red light

HW white light

Hp optical word board

K relay

KA(NZ) current relay (negative sequence zero sequence)

KD differential relay

KF flash relay

KH thermal relay

KM intermediate relay

KOF outlet intermediate relay

Knock sensor signal relay

KT time relay

KV(NZ) voltage relay (negative sequence zero sequence)

KP polarized relay

KR reed relay

KI impedance relay

KW(NZ) power direction relay (negative sequence zero sequence)

KM contactor

KA instantaneous relay; Instantaneous presence or absence of relay; Ac relay

KV voltage relay

L line

QF circuit breaker

QS disconnector

Test transformer

TA current transformer

Television voltage transformer

West DC bus

YC closed coil

YT trip coil

PQS active and reactive apparent power

EUI electromotive force voltage current

SE experiment button

SR reset button

F frequency

Q—— Switching device of the circuit.

Rich fuse

Fr- thermal relay

Km- contactor

Ka- 1, instantaneous contact relay 2, instantaneous presence or absence relay 3, AC relay

KT-Delay with or without relay

Q-adjusting device of sb- button switch circuit

Rich fuse

Km- contactor

Ka- 1, instantaneous contact relay 2, instantaneous presence or absence relay 3, AC relay

KT-Delay with or without relay

Sb- push button switch

SA changeover switch

Ammeter PA

Voltmeter PV

Active watt-hour meter PJ

Reactive watt-hour meter PJR

Frequency table PF

Phase table PPA

Maximum demand meter (load monitor) PM

PPF power factor table

Active power meter PW

Reactive power meter PR

Reactive ammeter parameters

Sound signal HA

Optical signal HS

Indicator lamp HL

Red light HR

Green lamp mercury

Yellow lamp HY

Hemoglobin blue

White light hardware

Connector XB

Plug XP

Socket XS

Terminal board XT

Wire and cable bus w

Dc bus WB

Plug-in (feed) bus WIB

Power branch WP

Lighting branch WL

Emergency lighting branch WE

Power trunk line WPM

Lighting suitcase WLM

Emergency lighting trunk WEM

Sliding contact line WT

Turn off the minibus WCL

Control WC of passenger car

Signal small bus WS

Flash minibus WF

Accident sound minibus WFS

Forecast audio passenger car WPS

Small voltage bus WV

Emergency lighting minibus WELM

Lightning arrester f

Fuse FU

Fast fuse FTF

Drop fuse FF

Voltage limiting protection device FV

Capacitor c

Power capacitor CE

Forward button SBF

Reverse button SBR

Stop button SBS

Panic button SBE

Test button SBT

Reset button SR

Limit switch SQ

Proximity switch SQP

Manual control switch

Time control switch SK

Liquid level control switch SL

Humidity control switch SM

Pressure control switch SP

Speed control switch SS

Auxiliary switch ST of temperature control switch

Voltmeter changeover switch SV

Ammeter changeover switch SA

Rectifier u

Silicon controlled rectifier

The control circuit has a rectifier VC with power supply.

Frequency converter ultrafiltration

Converter UC

Inverter user interface

Motor m

Asynchronous motor MA

Synchronous motor MS

Dc motor MD

Wound rotor induction motor MW

Squirrel cage motor MC

Electric valve YM

Solenoid valve YV

Fire damper YF

Smoke exhaust valve YS

Electromagnetic lock YL

Trip coil YT

Closed coil YC

Pneumatic actuators YPAYA

Electric actuator blade

Heating device (electric heating) FH

Illuminating lamp (light emitting device)

Air-conditioned electric vehicle

Electric heater heating element EE

Induction coil reactor l

Low frequency excitation coil

Arc suppression coil LA

Filter capacitor L 1

Resistance rheostat r

Potentiometer RP

Thermistor RT

Photosensitive resistor RL

Rheostat RPS

Grounding resistance RG

Discharge resistance RD

Starting rheostat RS

Radio frequency sensitive rheostat

Current limiting resistance RC

Photocell thermoelectric sensor b

Pressure converter BP

Temperature converter BT

Speed converter BV

Time measuring sensor BT 1BK

Liquid level measuring sensor BL

Temperature measuring sensor BHBM

Encyclopedia of electrical symbols in transformer room;

A complete set of commonly used electrical symbols

Ammeter PA

Voltmeter PV

Active watt-hour meter PJ

Reactive watt-hour meter PJR

Frequency table PF

Phase table PPA

Maximum demand meter (load monitor) PM

PPF power factor table

Active power meter PW

Reactive power meter PR

Reactive ammeter parameters

Sound signal HA

Optical signal HS

Indicator lamp HL

Red light HR

Green lamp mercury

Yellow lamp HY

Hemoglobin blue

White light hardware

Connector XB

Plug XP

Socket XS

Terminal board XT

Wire, cable, bus w

Dc bus WB

Plug-in (feed) bus WIB

Power branch WP

Lighting branch WL

Emergency lighting branch WE

Power trunk line WPM

Lighting suitcase WLM

Emergency lighting trunk WEM

Sliding contact line WT

Turn off the minibus WCL

Control WC of passenger car

Signal small bus WS

Flash minibus WF

Accident sound minibus WFS

Preview audio minibus WPS

Small voltage bus WV

Emergency lighting minibus WELM

Lightning arrester f

Fuse FU

Fast fuse FTF

Drop fuse FF

Voltage limiting protection device FV

Capacitor c

Power capacitor CE

Forward button SBF

Reverse button SBR

Stop button SBS

Panic button SBE

Test button SBT

Reset button SR

Limit switch SQ

Proximity switch SQP

Manual control switch

Time control switch SK

Liquid level control switch SL

Humidity control switch SM

Pressure control switch SP

Speed control switch SS

Temperature control switch, auxiliary switch ST

Voltmeter changeover switch SV

Ammeter changeover switch SA

Rectifier u

Silicon controlled rectifier

The control circuit has a rectifier VC with power supply.

Frequency converter ultrafiltration

Converter UC

Inverter user interface

Motor m

Asynchronous motor MA

Synchronous motor MS

Dc motor MD

Wound rotor induction motor MW

Squirrel cage motor MC

Electric valve YM

Solenoid valve YV

Fire damper YF

Smoke exhaust valve YS

Electromagnetic lock YL

Trip coil YT

Closed coil YC

Pneumatic actuators YPA, Asia

Electric actuator blade

Heating device (electric heating) FH

Illuminating lamp (light emitting device)

Air-conditioned electric vehicle

Electric heater heating element EE

Inductor coil, reactor l

Low frequency excitation coil

Arc suppression coil LA

Filter capacitor L 1

Resistor r

Potentiometer RP

Thermistor RT

Photosensitive resistor RL

Rheostat RPS

Grounding resistance RG

Discharge resistance RD

Starting rheostat RS

Radio frequency sensitive rheostat

Current limiting resistance RC

Photoelectric cell, thermoelectric sensor b

Pressure converter BP

Temperature converter BT

Speed converter BV

Time measuring sensor BT 1, black

Liquid level measuring sensor BL

Temperature measuring sensors BH, BM

Only words can be sent here. There are pictures in my library.